Performance test method, device and equipment for low-orbit satellite and medium

Abstract

The invention provides a performance test method, device and equipment for a low earth orbit satellite and a medium. The method comprises the following steps: acquiring a first test point and first test time of a to-be-tested first low earth orbit satellite; through the first test point, collecting a first ground level of the first low earth orbit satellite in the first test time, and obtaining a first signal beam direction of the first low earth orbit satellite in the first test time; and based on the first landing level and the first signal beam direction, performing an interference avoidance performance test on the first low-earth-orbit satellite to obtain a first target performance test result of the first low-earth-orbit satellite. The accuracy and precision of the interference avoidance performance test of the low-earth-orbit satellite are improved, the complexity of the interference avoidance performance test of the low-earth-orbit satellite is reduced, the exception handling efficiency of the interference avoidance performance exception is improved, the stability of the operation performance of the low-earth-orbit satellite is improved, and the reliability of the low-earth-orbit satellite is improved. And thus, the communication stability and communication quality between the high-orbit satellite and the earth surface are optimized.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a method, apparatus, device, and medium for testing the performance of low-earth orbit satellites. Background Art

[0002] With the development of technologies, the number of giant low-earth orbit satellite constellation systems is increasing day by day. During the daily operation of low-earth orbit satellites, there may be a certain degree of impact on the communication between geostationary satellites and the ground. In related technologies, corresponding interference avoidance functions can be configured for low-earth orbit satellites to reduce the impact degree of low-earth orbit satellites on the communication between geostationary satellites and the ground.

[0003] Therefore, it is very important to test whether the interference avoidance function of low-earth orbit satellites operates normally. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems in related technologies to some extent.

[0005] To this end, the first object of this application is to propose a method for testing the performance of low-earth orbit satellites.

[0006] The second object of this application is to propose an apparatus for testing the performance of low-earth orbit satellites.

[0007] The third object of this application is to propose an electronic device.

[0008] The fourth object of this application is to propose a computer-readable storage medium.

[0009] The fifth object of this application is to propose a computer program product.

[0010] To achieve the above object, an embodiment of the first aspect of this application proposes a method for testing the performance of low-earth orbit satellites, including: obtaining a first test point and a first test time of a first low-earth orbit satellite to be tested; collecting a first ground level of the first low-earth orbit satellite at the first test time through the first test point, and obtaining a first signal beam direction of the first low-earth orbit satellite at the first test time; based on the first ground level and the first signal beam direction, performing an interference avoidance performance test on the first low-earth orbit satellite to obtain a first target performance test result of the first low-earth orbit satellite.

[0011] To achieve the above object, an embodiment of the second aspect of the present application provides a performance testing device for a low-earth orbit satellite. The device includes: an acquisition module configured to acquire a first test point and a first test time of a first low-earth orbit satellite to be tested; a collection module configured to collect a first ground-level signal of the first low-earth orbit satellite at the first test time through the first test point, and acquire a first signal beam direction of the first low-earth orbit satellite at the first test time; and a test module configured to perform an interference avoidance performance test on the first low-earth orbit satellite based on the first ground-level signal and the first signal beam direction to obtain a first target performance test result of the first low-earth orbit satellite.

[0012] To achieve the above object, an embodiment of the third aspect of the present application provides an electronic device, including: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the performance testing method for a low-earth orbit satellite proposed in the first aspect above.

[0013] To achieve the above object, an embodiment of the fourth aspect of the present application provides a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are used to implement the performance testing method for a low-earth orbit satellite proposed in the first aspect above when executed by a processor.

[0014] To achieve the above object, an embodiment of the fifth aspect of the present application provides a computer program product, including a computer program that implements the performance testing method for a low-earth orbit satellite proposed in the first aspect above when executed by a processor.

[0015] The performance testing method and device provided in the present application acquire a first test point and a first test time of a low-earth orbit satellite, acquire a first ground-level signal and a first signal beam direction of the low-earth orbit satellite at the first test time through the first test point, and obtain a first target performance test result of the interference avoidance performance test of the low-earth orbit satellite based on the first ground-level signal and the first signal beam direction. In the present application, the interference avoidance performance test is performed from two dimensions of the first ground-level signal and the first signal beam direction, which improves the accuracy and precision of the interference avoidance performance test of the low-earth orbit satellite. The interference avoidance performance test of the low-earth orbit satellite is realized through the first test point set on the ground surface, which reduces the complexity of the interference avoidance performance test of the low-earth orbit satellite, optimizes the test method and test effect of the interference avoidance performance test of the low-earth orbit satellite, improves the identification efficiency of performance anomalies in the scenario where the interference avoidance performance of the low-earth orbit satellite is abnormal, and further improves the abnormal handling efficiency of interference avoidance performance anomalies, improves the stability of the operation performance of the low-earth orbit satellite, and further optimizes the communication stability and communication quality between the geostationary satellite and the ground surface.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0017] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the drawings, where: Figure 1 is a schematic flowchart of a method for performance testing of a low-earth orbit satellite according to an embodiment of the present application; Figure 2 is a schematic flowchart of a method for performance testing of a low-earth orbit satellite according to another embodiment of the present application; Figure 3 is a schematic flowchart of a method for performance testing of a low-earth orbit satellite according to another embodiment of the present application; Figure 4 is a schematic diagram of a performance testing system for a low-earth orbit satellite according to an embodiment of the present application; Figure 5 is a schematic structural diagram of a performance testing device for a low-earth orbit satellite according to an embodiment of the present application. Detailed Embodiments

[0018] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application.

[0019] The following describes a method, device, equipment, and medium for performance testing of a low-earth orbit satellite according to an embodiment of the present application with reference to the drawings.

[0020] Figure 1 is a schematic flowchart of a method for performance testing of a low-earth orbit satellite according to an embodiment of the present application, as Figure 1 shown, the method includes: S101, obtaining a first test point and a first test time of a first low-earth orbit satellite to be tested.

[0021] During the daily operation of a low-earth orbit satellite constellation, when a low-earth orbit satellite in the constellation communicates with the earth's surface, it may cause a certain degree of interference to the communication quality between a relevant geostationary satellite and the earth's surface. In this scenario, a corresponding interference avoidance function can be set for the low-earth orbit satellite, thereby reducing the interference degree of the communication between the low-earth orbit satellite and the earth's surface on the communication quality between the geostationary satellite and the earth's surface.

[0022] Optionally, the interference avoidance function of the low-earth orbit satellite may be abnormal. In this scenario, the interference avoidance performance of the interference avoidance function of the low-earth orbit satellite can be tested.

[0023] In the embodiments of the present application, a low-earth orbit satellite to be tested can be determined as the first low-earth orbit satellite, and a test position point for performing interference avoidance performance testing on the first low-earth orbit satellite can be determined as the first test point of the first low-earth orbit satellite to be tested. Optionally, relevant systems for interference avoidance performance testing of the first low-earth orbit satellite are deployed at the first test point. In this scenario, the time when the relevant systems at the first test point perform interference avoidance performance testing on the first low-earth orbit satellite can be determined as the first test time.

[0024] It should be noted that the first test time can be the collinear time among the first low-earth orbit satellite, the geostationary orbit satellite that may cause communication interference to the first low-earth orbit satellite, and the first test point, or it can be the time when the first low-earth orbit satellite causes communication quality interference to the relevant geostationary orbit satellite and the first test point can observe the first low-earth orbit satellite. There is no specific limitation here.

[0025] S102, through the first test point, collect the first ground level of the first low-earth orbit satellite at the first test time, and obtain the first signal beam direction of the first low-earth orbit satellite at the first test time.

[0026] In the embodiments of the present application, ground level data acquisition devices are deployed at the first test point. Based on the deployment of these devices, the first test point on the ground surface can collect the ground level of the signal beam sent by the first low-earth orbit satellite at the first test time at the first test point, and this ground level is the first ground level.

[0027] Optionally, when the signal beam sent by the first low-earth orbit satellite when passing through the first test point has a set pointing direction, the pointing direction of the signal beam sent by the first low-earth orbit satellite at the first test time can be determined as the first signal beam direction.

[0028] S103, based on the first ground level and the first signal beam direction, perform interference avoidance performance testing on the first low-earth orbit satellite to obtain the first target performance test result of the first low-earth orbit satellite.

[0029] In the scenario where the interference avoidance performance of the first low-earth orbit satellite is normal, there are respective limiting conditions for the ground level and the beam direction of the signal beam sent by the first low-earth orbit satellite at the first test time at the first test point. In this scenario, the obtained first ground level and first signal beam direction can be compared with their respective limiting conditions to identify whether the first ground level and the first signal beam direction match their respective limiting conditions.

[0030] Optionally, obtain the matching results of the first ground level and the first signal beam direction with their respective limiting conditions, and based on this matching result, identify whether the interference avoidance performance of the current first low-earth orbit satellite is normal.

[0031] It can be understood that when the matching result indicates that the first ground level and the first signal beam direction match their respective defined conditions, it can be determined that the interference avoidance performance of the first low-earth orbit satellite in the current scenario is normal. Correspondingly, when the matching result indicates that the first ground level and the first signal beam direction do not match their respective defined conditions, it can be determined that the interference avoidance performance of the first low-earth orbit satellite in the current scenario is abnormal.

[0032] Furthermore, based on the above determination content, the test result of the interference avoidance performance of the first low-earth orbit satellite is obtained as the first target performance test result.

[0033] The performance test method of the first low-earth orbit satellite proposed in this application obtains the first test point and the first test time of the first low-earth orbit satellite, obtains the first ground level and the first signal beam direction of the first low-earth orbit satellite at the first test time through the first test point, and obtains the first target performance test result of the interference avoidance performance test of the first low-earth orbit satellite according to the first ground level and the first signal beam direction. In this application, the interference avoidance performance test is carried out through two dimensions of the first ground level and the first signal beam direction, which improves the accuracy and precision of the interference avoidance performance test of the low-earth orbit satellite. The interference avoidance performance test of the low-earth orbit satellite is realized through the first test point set on the ground surface, which reduces the complexity of the interference avoidance performance test of the low-earth orbit satellite, optimizes the test method and test effect of the interference avoidance performance test of the low-earth orbit satellite, improves the recognition efficiency of performance anomalies in the scenario where the interference avoidance performance of the low-earth orbit satellite is abnormal, and further improves the abnormal handling efficiency of interference avoidance performance anomalies, improves the stability of the operation performance of the low-earth orbit satellite, and further optimizes the communication stability and communication quality between the high-earth orbit satellite and the ground surface.

[0034] In the above embodiment, regarding the interference avoidance performance test of the first low-earth orbit satellite, it can also be combined with Figure 2 Further understanding, Figure 2 is a schematic flowchart of the performance test method of the first low-earth orbit satellite according to another embodiment of this application. As Figure 2 shown, the method includes: S201, obtain the first test point and the first test time of the first low-earth orbit satellite to be tested.

[0035] Optionally, obtain the candidate performance test points of the first low-earth orbit satellite, obtain the first ephemeris data of the first low-earth orbit satellite, and determine the first test point from the candidate performance test points according to the first ephemeris data, where the first test point is observable to the first low-earth orbit satellite.

[0036] In the embodiments of the present application, multiple test points can be preset on the ground, and test points capable of realizing the interference avoidance performance test of the first low-earth orbit satellite to be tested can be determined from the multiple test points as the first test points of the first low-earth orbit satellite, where the preset multiple test points can be determined as candidate performance test points.

[0037] Optionally, ephemeris data of the first low-earth orbit satellite within a set historical time range can be obtained as the first ephemeris data, and based on the first ephemeris data, test points capable of observing the first low-earth orbit satellite to be tested can be identified from the candidate performance test points, and this test point can be used as the first test point for the interference avoidance performance test of the first low-earth orbit satellite.

[0038] Optionally, based on the first ephemeris data, the collinear time among the first low-earth orbit satellite, the geostationary satellite corresponding to the first low-earth orbit satellite, and the first test point is calculated, and the first test time of the first low-earth orbit satellite is obtained from the interference time period corresponding to the collinear time.

[0039] In the embodiments of the present application, the first low-earth orbit satellite, the geostationary satellite corresponding to the first low-earth orbit satellite, and the first test point may be in a collinear state. In this scenario, algorithm processing can be performed on the relevant information of the first low-earth orbit satellite, the geostationary satellite corresponding to the first low-earth orbit satellite, and the first test point according to the collinear time calculation method in the related technology to obtain the collinear time among the three.

[0040] Optionally, the time interval corresponding to the collinear time is obtained, and then a time that meets the preset conditions is selected from the time interval as the first test time of the first low-earth orbit satellite.

[0041] S202, Obtain the spectrum acquisition software deployed on the first test point to obtain the first ground level matrix of the first low-earth orbit satellite, and obtain the first ground level corresponding to the first test time from the first ground level matrix.

[0042] In the embodiments of the present application, the spectrum acquisition software deployed on the first test point can track and record the ground level of the first low-earth orbit satellite within a set time range, and based on the recorded ground level and the acquisition time corresponding to the ground level, the first ground level matrix of the first low-earth orbit satellite is obtained.

[0043] In this scenario, the ground level corresponding to the first test time can be obtained from the first ground level matrix, and this ground level is the first ground level corresponding to the first test time.

[0044] It should be noted that the first ground level matrix can be in the matrix format corresponding to [time 1: data 1, time 2: data 2,...], or can be based on other preset matrix formats, which are not specifically limited here.

[0045] S203. Obtain a second test time before the first test time and a third test time after the first test time, and obtain a second ground level corresponding to the second test time and a third ground level corresponding to the third test time from the first ground level matrix.

[0046] In an embodiment of the present application, a time that meets a preset condition can be obtained from a time range earlier than the first test time as the second test time before the first test time, and a time that meets the preset condition can be obtained from a time range later than the first test time as the third test time after the first test time.

[0047] In this scenario, the ground level corresponding to the second test time can be obtained from the first ground level matrix as the second ground level, and the ground level corresponding to the third test time can be obtained from the first ground level matrix as the third ground level.

[0048] S204. Based on the first ground level, the second ground level, and the third ground level, obtain a first signal beam direction of the first low-Earth orbit satellite at the first test time.

[0049] Optionally, obtain first telemetry data corresponding to the first low-Earth orbit satellite at the first test time, second telemetry data corresponding to the second test time, and third telemetry data corresponding to the third test time.

[0050] In an embodiment of the present application, for the first low-Earth orbit satellite to be tested, telemetry can be performed through a control center set on the ground by the first low-Earth orbit satellite. In this scenario, the telemetry data corresponding to the first low-Earth orbit satellite to be tested at the first test time can be obtained through the control center as the first telemetry data, the telemetry data corresponding to the first low-Earth orbit satellite at the second test time can be obtained as the second telemetry data, and the telemetry data corresponding to the first low-Earth orbit satellite at the third test time can be obtained as the third telemetry data.

[0051] It should be noted that the acquisition of the above-mentioned telemetry data can be implemented through a relevant information acquisition module 52 for monitoring the operating state of the first low-Earth orbit satellite by the ground control center, or can also be implemented based on other methods capable of acquiring satellite status data, and specific limitations are not made here.

[0052] Optionally, obtain a first correspondence between the first telemetry data and the first ground level, a second correspondence between the second telemetry data and the second ground level, and a third correspondence between the third telemetry data and the third ground level.

[0053] In the embodiments of the present application, the algorithm processing can be performed on the first telemetry data and the first landing level based on the data correspondence analysis algorithm in the related art, and then the data correspondence between the first telemetry data and the first landing level can be obtained according to the result of the algorithm processing as the first correspondence.

[0054] Further, based on the same processing method, the data correspondence between the second telemetry data and the second landing level is obtained as the second correspondence, and the data correspondence between the third telemetry data and the third landing level is obtained as the third correspondence.

[0055] Optionally, in response to the first correspondence matching the second correspondence and the first correspondence matching the third correspondence, it is determined that the first signal beam direction of the first low-earth orbit satellite at the first test time is not pointing to the test point direction.

[0056] In the embodiments of the present application, it is possible to identify whether the signal beam transmitted by the first low-earth orbit satellite at the first test time points to the first test point according to the matching result between the first correspondence and the second correspondence, and the matching result between the first correspondence and the third correspondence.

[0057] Among them, when the first correspondence and the second correspondence are the same or similar, it can be determined that the first correspondence and the second correspondence match, and when the first correspondence and the third correspondence are the same or similar, it can be determined that the first correspondence and the third correspondence match.

[0058] During the daily operation of the first low-earth orbit satellite, when the interference avoidance function of the first low-earth orbit satellite takes effect, the signal beam of the first low-earth orbit satellite should not point to its corresponding surface observation point. Therefore, when the first correspondence and the second correspondence match and the first correspondence and the third correspondence match, it can be determined that the first signal beam of the first low-earth orbit satellite does not point to the first test point. Further, the direction of the first signal beam in this scenario can be determined as not pointing to the test point direction.

[0059] S205, based on the first landing level and the first signal beam direction, perform an interference avoidance performance test on the first low-earth orbit satellite to obtain the first target performance test result of the first low-earth orbit satellite.

[0060] Optionally, in response to only the background noise existing in the first landing level and the first signal beam direction being not pointing to the test point direction, it is determined that the first target performance test result of the first low-earth orbit satellite is that the interference avoidance performance is normal.

[0061] In the embodiment of the present application, when there is only background noise in the first landing level obtained by the first test point and the first signal beam direction is not pointing to the test point direction, it can be determined that the signal beam transmitted by the first low-earth orbit satellite at the first test time in the current scenario does not point to the first test point, and there is no service signal in the first landing level obtained by the first test point at the first test time. In this scenario, it can be determined that the first target performance test result obtained from the interference avoidance performance test of the first low-earth orbit satellite is that the interference avoidance performance of the first low-earth orbit satellite is normal.

[0062] Optionally, in response to the existence of other signals other than background noise in the first landing level and / or the first signal beam direction being the direction pointing to the test point, it is determined that the first target performance test result of the first low-earth orbit satellite is that the interference avoidance performance is abnormal.

[0063] In the embodiment of the present application, when the interference avoidance performance of the first low-earth orbit satellite takes effect, there should be only background noise in the first landing level obtained through the first test point. Therefore, it can be known that when there are other signals other than background noise in the first landing level obtained through the first test point, it can be determined that the interference avoidance performance of the current first low-earth orbit satellite may be abnormal. In this scenario, the abnormal interference avoidance performance of the first low-earth orbit satellite can be used as the first target performance test result obtained from the interference avoidance performance test of the first low-earth orbit satellite.

[0064] In the embodiment of the present application, when the first signal beam of the first low-earth orbit satellite points to the first test point, the first test point can obtain the service signal carried in the first signal beam. Therefore, it can be known that in the scenario where it is recognized that the first signal beam direction of the first signal beam transmitted by the first low-earth orbit satellite at the first test time is the direction pointing to the first test point, the first landing level obtained by the first test point carries the service signal transmitted by the first low-earth orbit satellite. In this scenario, it can be determined that the interference avoidance performance of the first low-earth orbit satellite has not taken effect, and further, the abnormal interference avoidance performance can be determined as the first target performance test result obtained by the first low-earth orbit satellite in the current interference avoidance performance test.

[0065] The performance testing method for low-earth orbit satellites proposed in this application conducts interference avoidance performance testing through two dimensions of the first landing level and the first signal beam direction, improving the accuracy and precision of the interference avoidance performance testing for low-earth orbit satellites. The interference avoidance performance testing of low-earth orbit satellites is realized through the first test point set on the ground surface, reducing the complexity of the interference avoidance performance testing for low-earth orbit satellites, optimizing the testing method and testing effect of the interference avoidance performance testing for low-earth orbit satellites. In the scenario where the interference avoidance performance of low-earth orbit satellites is abnormal, the identification efficiency of performance anomalies is improved, and further the abnormal handling efficiency of interference avoidance performance anomalies is improved, enhancing the stability of the operating performance of low-earth orbit satellites, and further optimizing the communication stability and communication quality between high-earth orbit satellites and the ground surface.

[0066] In the above embodiments, the first low-earth orbit satellite constellation to which the first low-earth orbit satellite belongs may or may not match the test system deployed at the first test point, and it can be combined with Figure 3 for further understanding. Figure 3 As shown in the flowchart of the performance testing method for low-earth orbit satellites according to another embodiment of this application, as Figure 3 shown, the method includes: S301, in response to identifying that the first low-earth orbit satellite constellation to which the first low-earth orbit satellite belongs does not match the test system at the first test point, obtain the target antenna direction deduction strategy, and based on the target antenna direction deduction strategy, obtain the target deduction antenna direction pattern of the unmatched second low-earth orbit satellite constellation.

[0067] In the embodiments of this application, the first low-earth orbit satellite constellation to which the first low-earth orbit satellite belongs may or may not match the test system at the first test point.

[0068] Optionally, in response to identifying that the first low-earth orbit satellite constellation to which the first low-earth orbit satellite belongs matches the test system at the first test point, it can be understood that the test system at the first test point can obtain relevant information such as the positions and antenna directions of the first low-earth orbit satellites in the first low-earth orbit satellite constellation. In this scenario, through the test system deployed at the first test point, the interference avoidance performance testing of the corresponding first low-earth orbit satellite can be carried out according to the obtained sidelobe landing level, that is, the interference avoidance performance testing of the first low-earth orbit satellite is realized through the first landing level and the first signal beam direction obtained through the first test point as proposed in the above embodiments, and the corresponding first target performance test result is obtained.

[0069] Optionally, when it is identified that the test system deployed at the first test point does not match the first low-earth orbit satellite constellation, it can be understood that the test system deployed at the first test point cannot obtain relevant detailed information such as the antenna direction information and position information of the first low-earth orbit satellites in the first low-earth orbit satellite constellation.

[0070] In this scenario, the mismatched first low-earth orbit (LEO) satellite constellation can be determined as the second LEO satellite constellation. The antenna directions of each second LEO satellite in the second LEO satellite constellation can be deduced based on the antenna direction deduction method in the related art, and the interference avoidance performance of each second LEO satellite can be tested based on the deduced antenna direction pattern of the second LEO satellite constellation.

[0071] Among them, the antenna directions of each second LEO satellite in the second LEO satellite constellation can be deduced based on a preset target antenna direction deduction strategy, and the deduced antenna direction pattern of the second LEO satellite constellation can be obtained based on the deduced antenna directions of each second LEO satellite. This deduced antenna direction pattern can be determined as the target deduced antenna direction pattern of the second LEO satellite constellation.

[0072] It should be noted that the second LEO satellite constellation can be understood as a non-cooperative constellation of the system to which the first test point belongs, or can be other types of constellations for which the first test point cannot obtain detailed information, and no specific limitation is made here.

[0073] In the embodiments of the present application, the acquisition of the target antenna direction deduction strategy can be understood in combination with the following content: Optionally, obtain the reference antenna direction pattern of the first LEO satellite constellation.

[0074] In the embodiments of the present application, the first LEO satellite constellation can be understood as a cooperative satellite constellation of the test system deployed at the first test point. In this scenario, the antenna directions of each first LEO satellite in the first LEO satellite constellation can be obtained through a preset information acquisition method, and the antenna direction pattern formed by the antenna directions of each first LEO satellite can be determined as the reference antenna direction pattern of the first LEO satellite constellation.

[0075] Optionally, based on a preset plurality of ground observation points, collect the first satellite transit arc segment data of the first LEO satellite within the first collection time period, and the second ground level matrix of the first LEO satellite within the first collection time period.

[0076] In the embodiments of the present application, a plurality of ground observation points can be set in the ground area where each first LEO satellite in the first LEO satellite constellation can be observed. Each first LEO satellite is observed and data is collected through the data observation and collection systems respectively deployed on the plurality of ground observation points. Among them, the time period for observing and collecting data for each first LEO satellite can be marked as the first collection time period of each first LEO satellite.

[0077] In this scenario, for any first low-earth orbit satellite, through the data observation and acquisition systems respectively deployed at multiple ground observation points, the transit arc segment data of the first low-earth orbit satellite when passing through each ground observation point during the first acquisition period is observed and acquired, and the transit arc segment data of the first low-earth orbit satellite during the first acquisition period collected is determined as the first satellite transit arc segment data of the first low-earth orbit satellite.

[0078] Moreover, through the data observation and acquisition systems respectively deployed at multiple ground observation points, the landing levels of the first low-earth orbit satellite when passing through each ground observation point during the first acquisition period are observed and acquired, and a second landing level matrix of the first low-earth orbit satellite during the first acquisition period is formed based on the collected landing levels.

[0079] Optionally, a candidate antenna direction deduction strategy is obtained, and based on the candidate antenna direction deduction strategy, antenna direction deduction is performed on the first low-earth orbit satellite constellation based on the first satellite transit arc segment data and the second landing level matrix to obtain a candidate deduced antenna direction pattern of the first low-earth orbit satellite constellation.

[0080] In the embodiments of this application, an antenna direction deduction strategy that has not been optimized and adjusted can be determined as the candidate antenna direction deduction strategy. Among them, the candidate antenna direction deduction strategy can be constructed based on the antenna direction deduction algorithm in the related art, or can be constructed based on other methods that can achieve antenna direction deduction, and no specific limitation is made here.

[0081] In this scenario, antenna direction deduction can be performed on each first low-earth orbit satellite in the first low-earth orbit satellite constellation based on the candidate antenna direction deduction strategy. Among them, for any first low-earth orbit satellite, antenna direction deduction can be performed based on the first satellite transit arc segment data and the second landing level matrix of the first low-earth orbit satellite through the candidate antenna direction deduction strategy, so as to obtain the deduced antenna directions of each first low-earth orbit satellite, and the antenna direction pattern composed of the antenna directions obtained by performing antenna direction deduction on each first low-earth orbit satellite is determined as the candidate deduced antenna direction pattern of the first low-earth orbit satellite constellation.

[0082] Optionally, based on the candidate deduced antenna direction pattern and the reference antenna direction pattern, the accuracy of the candidate antenna direction deduction strategy is adjusted to obtain the target antenna direction deduction strategy.

[0083] In the embodiments of this application, the candidate deduced antenna direction pattern and the reference antenna direction pattern can be processed by an algorithm based on the image difference acquisition algorithm in the related art, the difference between the two can be obtained according to the result of the algorithm processing, and then the accuracy of the candidate antenna direction deduction strategy can be adjusted based on the difference between the two, and the adjusted antenna direction deduction strategy is used as the target antenna direction deduction strategy.

[0084] In the embodiments of the present application, the deduced antenna pattern and the reference antenna pattern can also be processed by an algorithm based on the matching algorithm in the related art, and then the candidate antenna direction deduction strategy can be optimized and adjusted according to the result of the algorithm processing.

[0085] Optionally, in response to the candidate deduced antenna pattern matching the reference antenna pattern, it is determined that the candidate antenna direction deduction strategy is the target antenna direction deduction strategy.

[0086] In the embodiments of the present application, when it is recognized that the candidate deduced antenna pattern is the same as or the error degree is less than or equal to the preset error degree threshold as the reference antenna pattern, it can be determined that the candidate deduced antenna pattern matches the reference antenna pattern. Figure 1 That is, when it is recognized that the candidate deduced antenna pattern matches the reference antenna pattern, it can be determined that the current candidate antenna direction deduction strategy meets the preset antenna direction deduction accuracy condition. In this scenario, the candidate antenna direction deduction strategy in this scenario can be determined as the target antenna direction deduction strategy.

[0087] Optionally, in response to the candidate deduced antenna pattern not matching the reference antenna pattern, return to deduce and adjust the accuracy of the candidate antenna direction deduction strategy, and continue to deduce the antenna direction of the first low-earth orbit satellite constellation based on the adjusted candidate antenna direction deduction strategy until the new candidate deduced antenna pattern obtained based on the adjusted candidate antenna direction deduction strategy matches the reference antenna pattern, and the target antenna direction deduction strategy is obtained.

[0088] In the embodiments of the present application, when it is recognized that the candidate deduced antenna pattern is inconsistent with the reference antenna pattern or the error degree is greater than the preset error degree threshold, it can be determined that the accuracy of the current candidate antenna direction deduction strategy cannot meet the preset antenna direction deduction accuracy condition. In this scenario, it is necessary to adjust and optimize the candidate antenna direction deduction strategy.

[0089]

[0090] Among them, the accuracy of the candidate antenna direction deduction strategy can be adjusted based on a preset deduction strategy accuracy adjustment method, and the antenna direction of the first low-earth orbit satellite constellation can be continuously deduced based on the adjusted candidate antenna direction deduction strategy until the new candidate deduced antenna pattern of the first low-earth orbit satellite constellation obtained based on the adjusted candidate antenna direction deduction strategy matches the reference antenna pattern. It can be determined that the accuracy of the current adjusted candidate antenna direction deduction strategy meets the preset accuracy condition, and then the adjusted candidate antenna direction deduction strategy can be determined as the target antenna direction deduction strategy.

[0091] Optionally, obtain the second ephemeris data and the second satellite transit arc data of the second low-Earth orbit satellite, and collect the third ground-level matrix of the second low-Earth orbit satellite through a plurality of preset ground observation points. Based on the pre-obtained target antenna direction deduction strategy and the third ground-level matrix, perform antenna direction deduction on the second low-Earth orbit satellite to obtain the target deduced antenna direction pattern of the second low-Earth orbit satellite constellation.

[0092] In the embodiments of the present application, a plurality of ground observation points can be set in the area where the ground can observe each second low-Earth orbit satellite in the second low-Earth orbit satellite constellation. For any second low-Earth orbit satellite, the transit arc when the second low-Earth orbit satellite passes through each ground observation point within a set time period can be obtained through a plurality of ground observation points, so as to obtain the second satellite transit arc data of the second low-Earth orbit satellite. In addition, obtain the ground level when the second low-Earth orbit satellite passes through each ground observation point within the same set time period, so as to obtain the ground-level matrix of the second low-Earth orbit satellite within the set time period based on the collected ground levels, as the third ground-level matrix.

[0093] Further, through the target antenna direction deduction strategy, based on the second satellite transit arc data and the third ground-level matrix, perform antenna direction deduction on each second low-Earth orbit satellite in the second low-Earth orbit satellite constellation, so as to obtain the deduced antenna direction of each second low-Earth orbit satellite. Further, determine the antenna direction pattern composed of the deduced antenna directions of each second low-Earth orbit satellite as the target deduced antenna direction pattern of the second low-Earth orbit satellite constellation.

[0094] Optionally, perform parameter deduction on each second low-Earth orbit satellite according to the target deduced antenna direction pattern to obtain the off-axis angle parameters of each second low-Earth orbit satellite.

[0095] In the embodiments of the present application, for the second low-Earth orbit satellite constellation that does not match the test system of the first test point, after obtaining the target deduced antenna direction pattern of the second low-Earth orbit satellite constellation, the off-axis angle of each second low-Earth orbit satellite can be deduced based on the antenna direction information of each second low-Earth orbit satellite in the target deduced antenna direction pattern.

[0096] Optionally, the antenna direction information of each second low-Earth orbit satellite can be processed by an algorithm according to the off-axis angle acquisition algorithm in the related art, and then the specific parameters of the off-axis angle of each second low-Earth orbit satellite can be obtained according to the result of the algorithm processing, as the off-axis angle parameters of each second low-Earth orbit satellite.

[0097] S302, perform interference avoidance performance testing on the second low-Earth orbit satellites in the second low-Earth orbit satellite constellation based on the target deduced antenna direction pattern to obtain the second target performance test result of the second low-Earth orbit satellite.

[0098] Optionally, obtain the second test point corresponding to the second low-orbit satellite, and obtain the main lobe beam direction of the second low-orbit satellite at the fourth test time according to the target deduced antenna pattern.

[0099] In the embodiments of the present application, among multiple ground observation points corresponding to the second low-orbit satellite on the ground surface, an observation point that meets the preset observation conditions can be obtained, and a relevant interference avoidance performance test system can be deployed at this observation point, so as to obtain a test point that can realize the interference avoidance performance test of the second low-orbit satellite, and use it as the second test point of the second low-orbit satellite.

[0100] In the embodiments of the present application, the main lobe beam sent by the second low-orbit satellite can be received through the second test point, and the interference avoidance performance test of the corresponding second low-orbit satellite can be realized based on the ground level corresponding to the main lobe beam.

[0101] Among them, according to the deduced target deduced antenna pattern, the transmission direction of the main lobe beam in the signal sent by the second low-orbit satellite to be tested currently at the preset fourth test time can be obtained, and this transmission direction can be determined as the main lobe beam direction of the second low-orbit satellite. Among them, the fourth test time can be the emission time of the signal carrying the main lobe beam by the second low-orbit satellite, or it can be a time determined based on other set conditions, and no specific limitation is made here.

[0102] Optionally, the satellite identification information of the second low-orbit satellite can be obtained, and a search can be performed in the target deduced antenna pattern based on this satellite identification information, so as to obtain the antenna direction of the second low-orbit satellite at the fourth test time from the target deduced antenna pattern. Further, the antenna direction can be analyzed and processed based on the main lobe beam determination method in the related art, and then the main lobe beam direction of the second low-orbit satellite at the fourth test time can be obtained according to the result of the analysis and processing.

[0103] Optionally, in response to the main lobe beam direction pointing to the second test point, obtain the fourth ground level of the second transmission signal sent by the second low-orbit satellite at the fourth test time at the second test point.

[0104] In the embodiments of the present application, when it is recognized that the main lobe beam direction of the second low-orbit satellite points to the second test point, it can be determined that the second test point can receive the main lobe beam in the emission signal of the second low-orbit satellite. Further, it can be determined that the interference avoidance performance test of the second low-orbit satellite can be carried out through the test system deployed at the second test point.

[0105] Optionally, the signal transmitted by the second low-orbit satellite at the fourth test time can be determined as the second transmitted signal, and based on the ground level acquisition module 51 in the test system deployed at the second test point, and based on the main lobe beam in the received second transmitted signal, the ground level of the second transmitted signal at the second test point is obtained as the fourth ground level.

[0106] Optionally, obtain the second test point, the second low-orbit satellite, and the calculated collinear time corresponding to the second low-orbit satellite, so as to obtain the fifth ground level of the third transmitted signal transmitted by the second low-orbit satellite at the calculated collinear time at the second test point.

[0107] In the embodiment of the present application, in the scenario of testing the interference avoidance performance of the second low-orbit satellite through the second test point, the relative position relationship among the second low-orbit satellite, the second test point, and the high-orbit satellite that may cause interference to the second low-orbit satellite can be calculated based on the ephemeris data of the second low-orbit satellite, and the time when the three may be collinear is obtained as the calculated collinear time used for testing the interference avoidance performance of the second low-orbit satellite.

[0108] In this scenario, the signal transmitted by the second low-orbit satellite at the calculated collinear time can be received through the second test point to obtain the ground level corresponding to the signal as the fifth ground level obtained through the second test point, where the signal can be determined as the third transmitted signal of the second low-orbit satellite.

[0109] Optionally, based on the fifth ground level and the fourth ground level, obtain the second target performance test result of the second low-orbit satellite.

[0110] Wherein, in response to the fifth ground level matching the fourth ground level, it is determined that the second low-orbit satellite has no interference avoidance measure as the second target performance test result.

[0111] In the embodiment of the present application, when the fifth ground level matches the fourth ground level, it can be determined that the main lobe ground level of the signal transmitted by the second low-orbit satellite at the non-calculated collinear time is the same or similar to the main lobe ground level of the signal transmitted at the calculated collinear time.

[0112] It can be seen that in this scenario, when the second low-orbit satellite is collinear with the second test point and the corresponding high-orbit satellite, the interference avoidance function is not enabled. Furthermore, it can be determined that the second low-orbit satellite has no interference avoidance measure, and this is used as the test result obtained from testing the interference avoidance performance of the second low-orbit satellite, that is, the second target performance test result.

[0113] And, in response to the fifth ground level not matching the fourth ground level, it is determined that the second low-orbit satellite has an interference avoidance measure as the second target performance test result.

[0114] In the embodiments of the present application, when the fifth landing level does not match the fourth landing level, it can be determined that there is a difference between the main lobe landing level of the signal sent by the second low-earth orbit satellite during the non-measured collinear time and the main lobe landing level of the signal sent during the measured collinear time.

[0115] It can be seen from this that in this scenario, when the second low-earth orbit satellite is collinear with the second test point and the corresponding high-earth orbit satellite, the interference avoidance function is enabled. Furthermore, it can be determined that the second low-earth orbit satellite has interference avoidance measures, and this is used as the test result obtained from the interference avoidance performance test of the second low-earth orbit satellite, that is, the second target performance test result.

[0116] In the embodiments of the present application, the second test point may receive the sidelobe beam signal sent by the second low-earth orbit satellite, which can be understood in combination with the following content: Optionally, in response to identifying that the sidelobe beam direction of the second low-earth orbit satellite at the fourth test time points to the second test point, according to the sidelobe beam direction and the target deduction antenna pattern, obtain the main lobe beam direction of the second low-earth orbit satellite at the fourth test time.

[0117] In the embodiments of the present application, in the scenario where the sidelobe beam direction in the signal sent by the second low-earth orbit satellite at the fourth test time points to the second test point, it can be determined that the second test point in this scenario cannot implement the interference avoidance performance test of the second low-earth orbit satellite based on the received sidelobe beam signal.

[0118] In this scenario, it is necessary to obtain the main lobe beam signal in the signal to which the sidelobe beam belongs, so as to implement the interference avoidance performance test of the second low-earth orbit satellite.

[0119] Among them, based on a preset main lobe beam recognition algorithm, algorithm processing can be performed on the sidelobe beam pointing direction corresponding to the sidelobe beam signal and the target deduction antenna pattern of the second low-earth orbit satellite constellation. Then, according to the result of the algorithm processing, obtain the pointing direction of the main lobe beam signal corresponding to the signal to which the sidelobe beam belongs, as the main lobe beam direction of the second low-earth orbit satellite at the fourth test time.

[0120] Optionally, obtain the pointing area of the main lobe beam direction, and perform the interference avoidance performance test on the second low-earth orbit satellite through the main lobe beam received by a preset third test point within the pointing area, to obtain the second target performance test result of the second low-earth orbit satellite.

[0121] In the embodiments of the present application, based on the main lobe beam direction of the second low-earth orbit satellite, the pointing area on the ground surface in this direction can be determined. In this scenario, the landing level corresponding to the main lobe beam of the second low-earth orbit satellite can be obtained through this pointing area, so as to implement the interference avoidance performance test of the second low-earth orbit satellite.

[0122] Optionally, there is a preset test point within the pointing area of the main lobe beam direction. This test point can be determined as the third test point. In this scenario, the ground level corresponding to the main lobe beam of the second low-earth orbit satellite can be obtained through the test system deployed at the third test point within the pointing area, thereby realizing the interference avoidance performance test of the second low-earth orbit satellite, and using the obtained test result as the second target performance test result of the second low-earth orbit satellite.

[0123] It should be noted that for the detailed content of the interference avoidance performance test of the second low-earth orbit satellite through the third test point in this scenario, reference can be made to the relevant content of the interference avoidance performance test of the second low-earth orbit satellite through the second test point proposed in the above embodiments, and specific details will not be elaborated here.

[0124] The performance test method for low-earth orbit satellites proposed in this application realizes the interference performance avoidance test of each second low-earth orbit satellite in the second low-earth orbit satellite constellation that does not match the test system at the first test point by deducing the target deduced antenna direction pattern of the antenna directions of each second low-earth orbit satellite, improves the practicability and applicability of the interference avoidance performance test, and further optimizes the communication stability and communication quality between the geostationary satellite and the ground surface.

[0125] For a better understanding of the above embodiments, it can be combined with Figure 4 , Figure 4 which is a schematic diagram of a performance test system for low-earth orbit satellites according to an embodiment of this application.

[0126] The test systems deployed at each test point proposed in the above embodiments can be the Figure 4 shown test system. As Figure 4 shown, the test system can include the Figure 4 shown antenna assembly 41, rotation shaft assembly 42, receiving assembly 43, navigation and positioning assembly 44, support assembly 45, and control assembly 46.

[0127] Optionally, through the Figure 4 shown antenna assembly 41, the tracking and monitoring of the low-earth orbit satellite to be tested can be realized, and the transmitted signal of the low-earth orbit satellite to be tested can be received and collected through the receiving assembly 43. Furthermore, the performance test of the interference avoidance performance of the low-earth orbit satellite to be tested can be carried out through the algorithm software deployed on the control assembly 46.

[0128] As Figure 4 shown, spectrum acquisition software is deployed on the control assembly 46. Through this spectrum acquisition software, the transmitted signal of the low-earth orbit satellite can be collected, and the ground level corresponding to the low-earth orbit satellite at the test point can be obtained according to the received transmitted signal. Furthermore, it can be determined whether the interference avoidance performance of the corresponding low-earth orbit satellite is normal according to the obtained ground level, so as to obtain the interference avoidance performance test result of the corresponding low-earth orbit satellite.

[0129] In the embodiments of the present application, when only background noise exists in the received ground level collected by the spectrum acquisition software, it can be determined that the interference avoidance function of the low-orbit satellite transmitting the signal corresponding to the received ground level is effective and operating normally. In this scenario, the normal interference avoidance performance can be used as the test result obtained from the interference avoidance performance test of the low-orbit satellite.

[0130] Correspondingly, when there are other signals in the received ground level collected by the spectrum acquisition software in addition to background noise, it can be determined that the interference avoidance function of the low-orbit satellite transmitting the signal corresponding to the received ground level may not exist or the interference avoidance function is operating abnormally. In this scenario, the abnormal interference avoidance performance can be used as the test result obtained from the interference avoidance performance test of the low-orbit satellite.

[0131] As Figure 4 shown, a rotating shaft assembly 42 shown in Figure 4 is further provided in the test system. By operating the rotating shaft assembly 42, the rotation of the antenna assembly 41 can be controlled, so as to realize the tracking and monitoring of the antenna assembly 41 for relevant satellites.

[0132] As Figure 4 shown, a support assembly 45 shown in Figure 4 is further provided in the test system. Through the support assembly 45, the hardware deployment of the test system for the interference avoidance performance test at each ground test point can be realized, so as to realize the interference avoidance performance test of relevant low-orbit satellites at each ground test point.

[0133] As Figure 4 shown, a navigation and positioning assembly 44 shown in Figure 4 is further provided in the test system. Through the navigation and positioning system deployed in the navigation and positioning assembly 44, the acquisition of the position information of the low-orbit satellite can be realized. Among them, the position information can be longitude and latitude information or other types of position information, which is not specifically limited here.

[0134] It should be noted that Figure 4 the navigation and positioning system deployed on the navigation and positioning assembly 44 shown in

[0135] can be a Beidou positioning system or other navigation and positioning systems capable of acquiring position information, which is not specifically limited here. Figure 4 In the embodiments of the present application, a driving software is further provided in the control assembly 46. Through the driving instructions sent by the driving software, the control and driving of the test system can be realized. As

[0136] The performance testing system of the first low-earth orbit satellite proposed in this application enables the surface test points to have the function of testing the interference avoidance performance of low-earth orbit satellites through the deployment of the testing system at the surface test points. Through the various components deployed in the testing system, the interference avoidance performance testing of relevant low-earth orbit satellites is realized based on the surface test points, reducing the complexity of the interference avoidance performance testing of low-earth orbit satellites and optimizing the testing methods and testing effects of the interference avoidance performance testing of low-earth orbit satellites.

[0137] Corresponding to the performance testing methods of low-earth orbit satellites proposed in the above several embodiments, an embodiment of this application also proposes a performance testing device for low-earth orbit satellites. Since the performance testing device for low-earth orbit satellites proposed in the embodiments of this application corresponds to the performance testing methods of low-earth orbit satellites proposed in the above several embodiments, the implementation manners of the above performance testing methods of low-earth orbit satellites are also applicable to the performance testing device for low-earth orbit satellites proposed in the embodiments of this application and will not be described in detail in the following embodiments.

[0138] To implement the above embodiments, this application also proposes a performance testing device for low-earth orbit satellites. Figure 4 As shown in the structure schematic diagram of the performance testing device for low-earth orbit satellites according to an embodiment of this application, Figure 4 As shown, the performance testing device 500 for low-earth orbit satellites includes an acquisition module 51, a collection module 52, and a testing module 53, where: The acquisition module 51 is configured to acquire the first test point and the first test time of the first low-earth orbit satellite to be tested; The collection module 52 is configured to collect the first ground level of the first low-earth orbit satellite at the first test time through the first test point, and acquire the first signal beam direction of the first low-earth orbit satellite at the first test time; The testing module 53 is configured to perform interference avoidance performance testing on the first low-earth orbit satellite based on the first ground level and the first signal beam direction, and obtain the first target performance test result of the first low-earth orbit satellite.

[0139] In the embodiments of this application, the collection module 52 is further configured to: acquire the spectrum collection software deployed at the first test point to obtain the first ground level matrix of the first low-earth orbit satellite, and obtain the first ground level corresponding to the first test time from the first ground level matrix; acquire the second test time before the first test time and the third test time after the first test time, and acquire the second ground level corresponding to the second test time and the third ground level corresponding to the third test time from the first ground level matrix; and acquire the first signal beam direction of the first low-earth orbit satellite at the first test time based on the first ground level, the second ground level, and the third ground level.

[0140] In the embodiment of the present application, the acquisition module 52 is further configured to: obtain first telemetry data corresponding to a first low-earth orbit satellite at a first test time, second telemetry data corresponding to a second test time, and third telemetry data corresponding to a third test time; obtain a first correspondence between the first telemetry data and a first ground level, a second correspondence between the second telemetry data and a second ground level, and a third correspondence between the third telemetry data and a third ground level; and in response to the first correspondence matching the second correspondence and the first correspondence matching the third correspondence, determine that the first signal beam direction of the first low-earth orbit satellite at the first test time is not pointing in the direction of the test point.

[0141] In the embodiment of the present application, the test module 53 is further configured to: in response to only background noise existing in the first ground level and the first signal beam direction not pointing in the direction of the test point, determine that the first target performance test result of the first low-earth orbit satellite is normal interference avoidance performance; and in response to other signals other than background noise existing in the first ground level and / or the first signal beam direction pointing in the direction of the test point, determine that the first target performance test result of the first low-earth orbit satellite is abnormal interference avoidance performance.

[0142] In the embodiment of the present application, the acquisition module 51 is further configured to: obtain a candidate performance test point of the first low-earth orbit satellite; obtain first ephemeris data of the first low-earth orbit satellite, and determine a first test point from the candidate performance test points according to the first ephemeris data, where the first test point is observable to the first low-earth orbit satellite; based on the first ephemeris data, calculate the collinear time between the first low-earth orbit satellite, the geostationary satellite corresponding to the first low-earth orbit satellite, and the first test point, and obtain the first test time of the first low-earth orbit satellite from the interference time period corresponding to the collinear time.

[0143] In the embodiment of the present application, the test module 53 is further configured to: in response to identifying that the first low-earth orbit satellite constellation to which the first low-earth orbit satellite belongs does not match the test system of the first test point, obtain a target antenna direction deduction strategy, and obtain a target deduced antenna direction pattern of the mismatched second low-earth orbit satellite constellation based on the target antenna direction deduction strategy; and perform interference avoidance performance testing on the second low-earth orbit satellite in the second low-earth orbit satellite constellation based on the target deduced antenna direction pattern to obtain a second target performance test result of the second low-earth orbit satellite.

[0144] In the embodiment of the present application, the test module 53 is further configured to: obtain the reference antenna pattern of the first low-Earth orbit satellite constellation; collect the first satellite transit arc segment data of the first low-Earth orbit satellite within the first collection time period and the second ground level matrix of the first low-Earth orbit satellite within the first collection time period based on a plurality of preset ground observation points; obtain a candidate antenna direction deduction strategy, and based on the candidate antenna direction deduction strategy, perform antenna direction deduction on the first low-Earth orbit satellite constellation based on the first satellite transit arc segment data and the second ground level matrix to obtain a candidate deduced antenna pattern of the first low-Earth orbit satellite constellation; and perform accuracy adjustment on the candidate antenna direction deduction strategy based on the candidate deduced antenna pattern and the reference antenna pattern to obtain a target antenna direction deduction strategy.

[0145] In the embodiment of the present application, the test module 53 is further configured to: determine that the candidate antenna direction deduction strategy is the target antenna direction deduction strategy in response to the candidate deduced antenna pattern matching the reference antenna pattern; and in response to the candidate deduced antenna pattern not matching the reference antenna pattern, return to perform deduction accuracy adjustment on the candidate antenna direction deduction strategy and continue to perform antenna direction deduction on the first low-Earth orbit satellite constellation based on the adjusted candidate antenna direction deduction strategy until the new candidate deduced antenna pattern obtained based on the adjusted candidate antenna direction deduction strategy matches the reference antenna pattern to obtain the target antenna direction deduction strategy.

[0146] In the embodiment of the present application, the test module 53 is further configured to: obtain the second ephemeris data and the second satellite transit arc segment data of the second low-Earth orbit satellite, and collect the third ground level matrix of the second low-Earth orbit satellite through a plurality of preset ground observation points; and perform antenna direction deduction on the second low-Earth orbit satellite based on the pre-obtained target antenna direction deduction strategy and the third ground level matrix to obtain the target deduced antenna pattern of the second low-Earth orbit satellite constellation.

[0147] In the embodiment of the present application, the test module 53 is further configured to: obtain the second test point corresponding to the second low-Earth orbit satellite, and obtain the main lobe beam direction of the second low-Earth orbit satellite at the fourth test time according to the target deduced antenna pattern; in response to the main lobe beam direction pointing to the second test point, obtain the fourth ground level of the second transmitted signal of the second low-Earth orbit satellite at the fourth test time at the second test point; obtain the second test point, the second low-Earth orbit satellite, and the calculated collinear time corresponding to the second low-Earth orbit satellite to obtain the fifth ground level of the third transmitted signal of the second low-Earth orbit satellite at the calculated collinear time at the second test point; and obtain the second target performance test result of the second low-Earth orbit satellite based on the fifth ground level and the fourth ground level.

[0148] In the embodiment of the present application, the test module 53 is further configured to: in response to the fifth landing level matching the fourth landing level, determine that there is no interference avoidance measure for the second low-earth orbit satellite as the second target performance test result; in response to the fifth landing level not matching the fourth landing level, determine that there is an interference avoidance measure for the second low-earth orbit satellite as the second target performance test result.

[0149] In the embodiment of the present application, the test module 53 is further configured to: in response to identifying that the sidelobe beam direction of the second low-earth orbit satellite points to the second test point at the fourth test time, obtain the main lobe beam direction of the second low-earth orbit satellite at the fourth test time according to the sidelobe beam direction and the target deduced antenna pattern; obtain the pointing area of the main lobe beam direction, and perform an interference avoidance performance test on the second low-earth orbit satellite through the main lobe beam received at the third test point preset in the pointing area, so as to obtain the second target performance test result of the second low-earth orbit satellite.

[0150] In the embodiment of the present application, the test module 53 is further configured to: perform parameter deduction on each second low-earth orbit satellite according to the target deduced antenna pattern to obtain the off-axis angle parameters of each second low-earth orbit satellite.

[0151] The performance test device for a low-earth orbit satellite proposed in the present application obtains the first test point and the first test time of the low-earth orbit satellite, obtains the first landing level and the first signal beam direction of the low-earth orbit satellite at the first test time through the first test point, and obtains the first target performance test result of the interference avoidance performance test of the low-earth orbit satellite according to the first landing level and the first signal beam direction. In the present application, the interference avoidance performance test is carried out through two dimensions of the first landing level and the first signal beam direction, which improves the accuracy and precision of the interference avoidance performance test of the low-earth orbit satellite. The interference avoidance performance test of the low-earth orbit satellite is realized through the first test point set on the ground, which reduces the complexity of the interference avoidance performance test of the low-earth orbit satellite, optimizes the test method and test effect of the interference avoidance performance test of the low-earth orbit satellite, improves the recognition efficiency of performance anomalies in the scenario where the interference avoidance performance of the low-earth orbit satellite is abnormal, and further improves the abnormal handling efficiency of interference avoidance performance anomalies, improves the stability of the operation performance of the low-earth orbit satellite, and further optimizes the communication stability and communication quality between the high-earth orbit satellite and the ground.

[0152] To implement the above embodiment, the present application also proposes an electronic device, including: a processor, and a memory communicatively connected to the processor; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to implement the performance test method for a low-earth orbit satellite provided in the foregoing embodiment. To implement the above embodiments, the present application further provides a computer-readable storage medium storing computer-executable instructions, which are used to implement the performance test method for low-earth orbit satellites provided by the foregoing embodiments when executed by a processor.

[0153] To implement the above embodiments, the present application further provides a computer program product including a computer program, which implements the performance test method for low-earth orbit satellites provided by the foregoing embodiments when executed by a processor.

[0154] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in the present application all comply with the provisions of relevant laws and regulations and do not violate public order and good customs.

[0155] It should be noted that personal information from users should be collected for legal and reasonable purposes and not shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after obtaining the informed consent of the user, including but not limited to notifying the user to read the user agreement / user notice and sign an agreement / authorization including authorizing relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others with access to personal information data comply with their privacy policies and procedures.

[0156] The present application anticipates providing an implementation for users to selectively block the use or access of personal information data. That is, the present disclosure anticipates providing hardware and / or software to prevent or block access to such personal information data. Once personal information data is no longer needed, the risk can be minimized by restricting data collection and deleting the data. In addition, when applicable, personal identifiers are removed from such personal information to protect the privacy of users.

[0157] In the description of the foregoing embodiments, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0158] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0159] Any process or method description represented in a flowchart or described otherwise herein may be understood to represent code for an executable instruction including one or more steps for implementing a customized logical function or process, a module, segment, or portion of code, and the scope of the preferred embodiments of this application includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in an order opposite to that shown or discussed, according to the functions involved, which should be understood by those skilled in the technical field to which the embodiments of this application pertain.

[0160] Logic and / or steps represented in a flowchart or described otherwise herein, for example, may be considered a sequenced list of executable instructions for implementing a logical function, and may be embodied specifically in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection portion having one or more wirings (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable medium on which the program can be printed, as the program can be obtained, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or other appropriate processing as necessary to obtain the program electronically and then storing it in a computer memory.

[0161] It should be understood that each part of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one of the following techniques well known in the art or a combination thereof can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0162] Those of ordinary skill in the art can understand that all or part of the steps carried by the method of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0163] In addition, each functional unit in each embodiment of the present application can be integrated into a processing module, or each unit can exist physically alone, or two or more units can be integrated into one module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. When the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0164] The above-mentioned storage medium can be a read-only memory, a magnetic disk, an optical disc, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A performance testing method for low-earth orbit satellites, characterized in that, The method includes: Obtaining a first test point and a first test time of a first low-earth orbit satellite to be tested; Collecting a first ground level of the first low-earth orbit satellite at the first test time through the first test point, and obtaining a first signal beam direction of the first low-earth orbit satellite at the first test time; Based on the first ground level and the first signal beam direction, performing an interference avoidance performance test on the first low-earth orbit satellite to obtain a first target performance test result of the first low-earth orbit satellite.

2. The method according to claim 1, wherein The collecting a first ground level of the first low-earth orbit satellite at the first test time through the first test point, and obtaining a first signal beam direction of the first low-earth orbit satellite at the first test time includes: Obtaining a spectrum collection software deployed at the first test point to obtain a first ground level matrix of the first low-earth orbit satellite, and obtaining the first ground level corresponding to the first test time from the first ground level matrix; Obtaining a second test time preceding the first test time and a third test time following the first test time, and obtaining a second ground level corresponding to the second test time and a third ground level corresponding to the third test time from the first ground level matrix; Based on the first ground level, the second ground level, and the third ground level, obtaining the first signal beam direction of the first low-earth orbit satellite at the first test time.

3. The method according to claim 2, wherein The obtaining the first signal beam direction of the first low-earth orbit satellite at the first test time based on the first ground level, the second ground level, and the third ground level includes: Obtaining first telemetry data corresponding to the first test time, second telemetry data corresponding to the second test time, and third telemetry data corresponding to the third test time of the first low-earth orbit satellite; Obtaining a first correspondence between the first telemetry data and the first ground level, a second correspondence between the second telemetry data and the second ground level, and a third correspondence between the third telemetry data and the third ground level; In response to the first correspondence matching the second correspondence and the first correspondence matching the third correspondence, determining that the first signal beam direction of the first transmitted signal of the first low-earth orbit satellite at the first test time is not directed towards the test point direction.

4. The method according to claim 1, wherein The performing an interference avoidance performance test on the first low-earth orbit satellite based on the first ground level and the first signal beam direction to obtain a first target performance test result of the first low-earth orbit satellite includes: In response to only background noise existing in the first ground level and the first signal beam direction being not directed towards the test point direction, determining that the first target performance test result of the first low-earth orbit satellite is that the interference avoidance performance is normal; In response to the presence of other signals other than the background noise in the first landing level, and / or the first signal beam direction being the direction pointing to the test point, it is determined that the first target performance test result of the first low-earth orbit satellite is abnormal in interference avoidance performance.

5. The method according to claim 1, wherein The obtaining of the first test point and the first test time of the first low-earth orbit satellite to be tested includes: Obtaining the candidate performance test points of the first low-earth orbit satellite; Obtaining the first ephemeris data of the first low-earth orbit satellite, and determining the first test point from the candidate performance test points according to the first ephemeris data, where the first test point is observable to the first low-earth orbit satellite; Based on the first ephemeris data, calculating the collinear time among the first low-earth orbit satellite, the geostationary satellite corresponding to the first low-earth orbit satellite, and the first test point, and obtaining the first test time of the first low-earth orbit satellite from the interference time period corresponding to the collinear time.

6. The method according to claim 1, characterized in that, The method further includes: In response to identifying that the first low-earth orbit satellite constellation to which the first low-earth orbit satellite belongs does not match the test system of the first test point, obtaining a target antenna direction deduction strategy, and obtaining a target deduced antenna direction pattern of the non-matching second low-earth orbit satellite constellation based on the target antenna direction deduction strategy; Performing an interference avoidance performance test on the second low-earth orbit satellites in the second low-earth orbit satellite constellation based on the target deduced antenna direction pattern, and obtaining a second target performance test result of the second low-earth orbit satellites.

7. The method according to claim 6, wherein The obtaining of the target antenna direction deduction strategy includes: Obtaining the reference antenna direction pattern of the first low-earth orbit satellite constellation; Based on a plurality of preset ground observation points, collecting the first satellite transit arc segment data of the first low-earth orbit satellite during the first collection time period, and the second landing level matrix of the first low-earth orbit satellite during the first collection time period; Obtaining a candidate antenna direction deduction strategy, and based on the candidate antenna direction deduction strategy, performing antenna direction deduction on the first low-earth orbit satellite constellation based on the first satellite transit arc segment data and the second landing level matrix, to obtain a candidate deduced antenna direction pattern of the first low-earth orbit satellite constellation; Based on the candidate deduced antenna direction pattern and the reference antenna direction pattern, performing accuracy adjustment on the candidate antenna direction deduction strategy to obtain the target antenna direction deduction strategy.

8. The method according to claim 7, wherein The performing of accuracy adjustment on the candidate antenna direction deduction strategy based on the candidate deduced antenna direction pattern and the reference antenna direction pattern to obtain the target antenna direction deduction strategy includes: In response to the candidate deduced antenna direction pattern matching the reference antenna direction pattern, determining the candidate antenna direction deduction strategy as the target antenna direction deduction strategy; In response to the mismatch between the candidate deduced antenna pattern and the reference antenna pattern, return to deduce the deduction accuracy adjustment of the candidate antenna direction deduction strategy, and continue to deduce the antenna direction of the first low-Earth orbit satellite constellation based on the adjusted candidate antenna direction deduction strategy until the new candidate deduced antenna pattern obtained based on the adjusted candidate antenna direction deduction strategy matches the reference antenna pattern, and obtain the target antenna direction deduction strategy.

9. The method according to claim 6, wherein The obtaining of the target deduced antenna pattern of the second low-Earth orbit satellite constellation that does not match based on the target antenna direction deduction strategy includes: Obtain the second ephemeris data and the second satellite transit arc data of the second low-Earth orbit satellite, and collect the third ground landing level matrix of the second low-Earth orbit satellite through a plurality of preset ground observation points. Based on the pre-obtained target antenna direction deduction strategy and the third ground landing level matrix, deduce the antenna direction of the second low-Earth orbit satellite to obtain the target deduced antenna pattern of the second low-Earth orbit satellite constellation.

10. The method according to claim 6, characterized in that, The obtaining of the second target performance test result of the second low-Earth orbit satellite by performing interference avoidance performance testing on the second low-Earth orbit satellite based on the target deduced antenna pattern includes: Obtain the second test point corresponding to the second low-Earth orbit satellite, and obtain the main lobe beam direction of the second low-Earth orbit satellite at the fourth test time according to the target deduced antenna pattern. In response to the main lobe beam direction pointing to the second test point, obtain the fourth ground landing level of the second transmitted signal sent by the second low-Earth orbit satellite at the fourth test time at the second test point. Obtain the second test point, the second low-Earth orbit satellite, and the calculated collinear time corresponding to the second low-Earth orbit satellite to obtain the fifth ground landing level of the third transmitted signal sent by the second low-Earth orbit satellite at the calculated collinear time at the second test point. Based on the fifth ground landing level and the fourth ground landing level, obtain the second target performance test result of the second low-Earth orbit satellite.

11. The method according to claim 10, characterized in that, The obtaining of the second target performance test result of the second low-Earth orbit satellite based on the fifth ground landing level and the fourth ground landing level includes: In response to the fifth ground landing level matching the fourth ground landing level, determine that there is no interference avoidance measure for the second low-Earth orbit satellite as the second target performance test result; In response to the fifth ground landing level not matching the fourth ground landing level, determine that the second low-Earth orbit satellite has the interference avoidance measure as the second target performance test result.

12. The method according to claim 10, wherein The method further includes: In response to identifying that the sidelobe beam direction of the second low-Earth orbit satellite at the fourth test time points to the second test point, obtain the main lobe beam direction of the second low-Earth orbit satellite at the fourth test time according to the sidelobe beam direction and the target deduced antenna pattern. Obtain the pointing area of the main lobe beam direction, and perform interference avoidance performance testing on the second low-Earth orbit satellite through the main lobe beam received by the third test point preset in the pointing area to obtain the second target performance test result of the second low-Earth orbit satellite.

13. The method according to claim 6, wherein The method further includes: Performing parameter deduction on each second low-earth orbit satellite according to the target deduced antenna pattern to obtain the off-axis angle parameters of each second low-earth orbit satellite.

14. A performance testing device for a low-earth orbit satellite, characterized in that, The apparatus includes: An acquisition module, configured to acquire a first test point and a first test time of a first low-earth orbit satellite to be tested; A collection module, configured to collect a first landing level of the first low-earth orbit satellite at the first test time through the first test point, and acquire a first signal beam direction of the first low-earth orbit satellite at the first test time; A test module, configured to perform an interference avoidance performance test on the first low-earth orbit satellite based on the first landing level and the first signal beam direction, to obtain a first target performance test result of the first low-earth orbit satellite.

15. An electronic device, characterized in that, It includes: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1-13.

16. A computer-readable storage medium, characterized in that Computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement the method according to any one of claims 1-13.

17. A computer program product, characterized in that It includes a computer program, and when the computer program is executed by a processor, it implements the method according to any one of claims 1-13.

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