Antenna Self-Tracking System, Control Method, Computer Device and Readable Storage Medium

Abstract

This application relates to the field of antenna tracking technology, and specifically discloses an antenna self-tracking system, a control method, a computer device, and a readable storage medium. The method includes: controlling the antenna to perform satellite tracking according to a prediction program, and continuously detecting centimeter-wave satellite signals and millimeter-wave satellite signals; when the centimeter-wave satellite signal is detected, determining whether the centimeter-wave satellite signal meets the tracking conditions, and if so, controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal; when the millimeter-wave satellite signal is detected, determining whether the millimeter-wave satellite signal meets the tracking conditions, and if so, controlling the antenna to perform satellite tracking according to the millimeter-wave satellite signal. Thus, while ensuring continuous satellite tracking, it is possible to intelligently switch the signal tracking mode according to the actual situation and the priority level.

Description

Technical Field

[0001] This application relates to the field of antenna tracking technology, and in particular, to an antenna self-tracking system, a control method, a computer device, and a readable storage medium. Background Art

[0002] During satellite measurement and control, the large-aperture relay satellite ground station antenna needs to achieve continuous and uninterrupted automatic tracking of satellite signals. Traditional antenna tracking systems usually can only use one signal tracking mode for tracking. To switch the tracking mode, it is necessary to reload the software or perform manual operations to achieve mode switching, and it cannot adapt to the intelligent conversion in the environment state where multiple signal tracking modes coexist. Summary of the Invention

[0003] Based on this, it is necessary to provide an antenna self-tracking control method, an antenna self-tracking system, a computer device, and a computer-readable storage medium for the above problems.

[0004] According to the first aspect of the embodiments of the present application, an antenna self-tracking control method is provided, including:

[0005] Controlling the antenna to perform satellite tracking according to a prediction program, and continuously detecting centimeter-wave satellite signals and millimeter-wave satellite signals;

[0006] When the centimeter-wave satellite signal is detected, determining whether the centimeter-wave satellite signal meets the tracking condition. If it meets, controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal;

[0007] When the millimeter-wave satellite signal is detected, determining whether the millimeter-wave satellite signal meets the tracking condition. If it meets, controlling the antenna to perform satellite tracking according to the millimeter-wave satellite signal.

[0008] In one of the embodiments, the antenna self-tracking control method further includes:

[0009] If it is determined that the centimeter-wave satellite signal does not meet the tracking condition, controlling the antenna to continue to perform satellite tracking according to the prediction program, and performing dynamic phase correction on the centimeter-wave satellite signal until the centimeter-wave satellite signal meets the tracking condition.

[0010] In one of the embodiments, the antenna self-tracking control method further includes:

[0011] If it is determined that the millimeter-wave satellite signal does not meet the tracking condition, controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal, and performing dynamic phase correction on the millimeter-wave satellite signal until the millimeter-wave satellite signal meets the tracking condition.

[0012] In one embodiment, at least one of the demodulated tracking error signal, AGC level signal, and signal lock indication is included in both the centimeter-wave satellite signal and the millimeter-wave satellite signal;

[0013] In the step of determining whether the centimeter-wave satellite signal or the millimeter-wave satellite signal meets the tracking condition, if any of the following conditions is not met, it is determined that the centimeter-wave satellite signal or the millimeter-wave satellite signal does not meet the tracking condition:

[0014] (1) The signal lock indication is in the locked state;

[0015] (2) The AGC level is greater than or equal to the set value;

[0016] (3) The tracking error is less than or equal to the error tolerance value;

[0017] (4) Voltage polarization: positive-biased negative voltage, negative-biased positive voltage.

[0018] In one embodiment, the tracking error signal includes an azimuth error voltage and an elevation error voltage; the tracking error being less than or equal to the error tolerance value includes that both the azimuth error voltage jitter and the elevation error voltage jitter are less than or equal to the first error tolerance value, and both the azimuth error voltage slope and the elevation error voltage slope are less than or equal to the second error tolerance value.

[0019] In one embodiment, in the step of controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal, the signal quality of the centimeter-wave satellite signal is detected in real time. If the signal quality of the centimeter-wave satellite signal is abnormal, the step of controlling the antenna to perform satellite tracking according to the prediction program is returned.

[0020] In one embodiment, in the step of controlling the antenna to perform satellite tracking according to the millimeter-wave satellite signal, the signal quality of the millimeter-wave satellite signal is detected in real time. If the signal quality of the millimeter-wave satellite signal is abnormal, the step of controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal is returned.

[0021] According to the second aspect of the embodiments of the present application, an antenna self-tracking system is provided, including:

[0022] An antenna;

[0023] A dual-band feed, connected to the antenna, for receiving the centimeter-wave satellite signal and the millimeter-wave satellite signal tracked by the antenna;

[0024] A first tracking channel and a first tracking receiver, the first tracking receiver being connected to the dual-band feed through the first tracking channel for processing the centimeter-wave satellite signal;

[0025] A second tracking channel and a second tracking receiver. The second tracking receiver is connected to the dual-band feed through the second tracking channel and is configured to process the millimeter-wave satellite signal.

[0026] A control unit, which is respectively connected to the antenna, the first tracking receiver, and the second tracking receiver, and is configured to execute the above-mentioned antenna self-tracking control method.

[0027] According to the third aspect of the embodiments of the present application, there is provided a computer device, including a memory, a processor, a communication board, and a time code board connected through a system bus. The memory stores a computer program, and when the processor executes the computer program, the above-mentioned antenna self-tracking control method is implemented.

[0028] According to the third aspect of the embodiments of the present application, there is provided a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned antenna self-tracking control method is implemented.

[0029] The antenna self-tracking control method provided by the embodiments of the present application can first control the antenna to perform satellite tracking according to a prediction program. At the same time, it continuously detects the centimeter-wave satellite signal and the millimeter-wave satellite signal. When the centimeter-wave satellite signal is detected, it determines whether the centimeter-wave satellite signal meets the tracking conditions. If the tracking conditions are met, it controls the antenna to perform satellite tracking according to the centimeter-wave satellite signal. At the same time, it continuously detects the millimeter-wave satellite signal. When the millimeter-wave satellite signal is detected, it determines whether the millimeter-wave satellite signal meets the tracking conditions. If the tracking conditions are met, it controls the antenna to perform satellite tracking according to the millimeter-wave satellite signal. Through the above method, it is possible to continuously detect the centimeter-wave satellite signal and the millimeter-wave satellite signal. Usually, the centimeter-wave satellite signal is often detected first, and then the millimeter-wave satellite signal is detected. In this embodiment, before the centimeter-wave satellite signal is detected, the antenna is controlled to perform satellite tracking according to the prediction program. When the centimeter-wave satellite signal is detected and it meets the tracking conditions, it switches to tracking the satellite with the higher-priority centimeter-wave satellite signal. When the millimeter-wave satellite signal is detected and it meets the tracking conditions, it switches to tracking the satellite with the even higher-priority millimeter-wave satellite signal. Thus, while ensuring continuous satellite tracking, it can intelligently switch the signal tracking mode according to the actual situation and the priority level. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a flowchart of the antenna self-tracking control method provided by an embodiment of the present application;

[0031] Figure 2 It is a schematic structural diagram of the antenna self-tracking system provided by an embodiment of the present application;

[0032] Figure 3Schematic diagram of the structure of a computer device provided by an embodiment of the present application.

[0033] Explanation of reference numerals:

[0034] 100, antenna; 200, dual-band feed; 310, first tracking channel; 320, first tracking receiver; 330, second tracking channel; 340, second tracking receiver; 400, control unit; 500, drive unit. Detailed implementation manners

[0035] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant accompanying drawings. Preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0036] In the present application, unless otherwise clearly defined and limited, terms such as "install", "connect", "connection", "fix" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] In the process of satellite measurement and control, the antenna of the large-aperture relay satellite ground station needs to realize continuous and uninterrupted automatic tracking of satellite signals. Traditional antenna tracking systems can usually only use one signal tracking mode for tracking. Switching the tracking mode requires reloading the software or manual operation to achieve mode switching. It is unable to adapt to the intelligent conversion in the environment where multiple signal tracking modes coexist.

[0040] Due to the large antenna aperture and narrow beam, the program guidance is based on the TLE or instantaneous root orbit prediction obtained by the current orbit determination accuracy. The prediction error is generally around 0.1°~0.2°, which makes it extremely difficult to directly capture the self-tracking millimeter wave satellite signal. The usual method is to first track with centimeter waves (X band), then guide millimeter waves (Q band) to capture and then switch to automatic tracking. However, the existing antenna tracking system often lacks an intelligent switching mechanism and basically relies on manual judgment to switch modes. It is impossible to automatically select the optimal tracking mode based on signal quality, tracking effect and frequency band priority.

[0041] In order to solve the above problems, the embodiments of the present application provide an antenna self-tracking control method, an antenna self-tracking system, a computer device and a computer-readable storage medium.

[0042] In one embodiment, a method for controlling antenna self-tracking is provided, by which the tracking mode of the antenna can be intelligently switched and the tracking effect can be ensured.

[0043] Reference Figure 1 The antenna self-tracking control method provided in this embodiment includes the following steps:

[0044] Step S200: Control the antenna to track satellites according to the prediction program and continuously detect centimeter-wave satellite signals and millimeter-wave satellite signals.

[0045] The prediction program refers to the orbit prediction calculation based on the instantaneous number of satellite orbit elements or two-line elements sent by the center side. Generally, the satellite antenna pointing prediction of 20 points / second is calculated from the inbound antenna elevation angle of 3 degrees to the outbound antenna elevation angle of 3 degrees. The format is: time, azimuth, and pitch angle, and it is saved on the local side. When the control antenna works in the program-guided tracking mode (that is, the control antenna tracks the satellite according to the prediction program), the locally stored prediction can be called, and the prediction value can be loaded point by point in a time-matching manner. The control antenna points to the satellite according to the prediction value. The above process is the program-guided tracking mode.

[0046] In this embodiment, when the local side receives the satellite tracking plan time and orbital elements sent by the central side for monitoring, it initializes the program, loads the macro command parameters of the corresponding satellite code, and calculates the satellite orbit prediction. Then, it first controls the antenna to perform satellite tracking according to the prediction program, that is, according to the satellite orbit prediction time, azimuth angle, and elevation angle, it controls the antenna to rotate in a time-matching manner, that is, enters the program tracking mode.

[0047] While entering the program tracking mode, it continuously detects the centimeter-wave (X-band) satellite signal and the millimeter-wave (Q-band) satellite signal. Before detecting the centimeter-wave satellite signal or the millimeter-wave satellite signal, it maintains the program tracking mode. Once the centimeter-wave satellite signal or the millimeter-wave satellite signal is detected, it can enter the subsequent intelligent judgment and mode switching link. Generally speaking, the centimeter-wave satellite signal will be received earlier than the millimeter-wave satellite signal.

[0048] Step S400: When the centimeter-wave satellite signal is detected, determine whether the centimeter-wave satellite signal meets the tracking conditions. If it meets the conditions, control the antenna to perform satellite tracking according to the centimeter-wave satellite signal.

[0049] When the centimeter-wave satellite signal is detected, first determine whether the currently received centimeter-wave satellite signal meets the tracking conditions. If it meets the tracking conditions, the antenna can be controlled to perform satellite tracking according to the centimeter-wave satellite signal, that is, switch from the program tracking mode to the centimeter-wave satellite signal tracking mode.

[0050] In this embodiment, when in the centimeter-wave satellite signal tracking mode, it continuously detects the millimeter-wave satellite signal.

[0051] Step S600: When the millimeter-wave satellite signal is detected, determine whether the millimeter-wave satellite signal meets the tracking conditions. If it meets the conditions, control the antenna to perform satellite tracking according to the millimeter-wave satellite signal.

[0052] When the millimeter-wave satellite signal is detected, similarly, first determine whether the currently received millimeter-wave satellite signal meets the tracking conditions. If it meets the tracking conditions, the antenna can be controlled to perform satellite tracking according to the millimeter-wave satellite signal, that is, switch from the centimeter-wave satellite signal tracking mode to the millimeter-wave satellite signal tracking mode.

[0053] The antenna self-tracking control method provided by the embodiments of the present application can first control the antenna to perform satellite tracking according to the prediction program. At the same time, it continuously detects the centimeter-wave satellite signal and the millimeter-wave satellite signal. When the centimeter-wave satellite signal is detected, it determines whether the centimeter-wave satellite signal meets the tracking conditions. If the tracking conditions are met, it controls the antenna to perform satellite tracking according to the centimeter-wave satellite signal. At the same time, it continuously detects the millimeter-wave satellite signal. When the millimeter-wave satellite signal is detected, it determines whether the millimeter-wave satellite signal meets the tracking conditions. If the tracking conditions are met, it controls the antenna to perform satellite tracking according to the millimeter-wave satellite signal. Through the above method, it can continuously detect the centimeter-wave satellite signal and the millimeter-wave satellite signal. Usually, the centimeter-wave satellite signal is often detected first, and then the millimeter-wave satellite signal is detected. In this embodiment, before the centimeter-wave satellite signal is detected, the antenna is controlled to perform satellite tracking according to the prediction program. When the centimeter-wave satellite signal is detected and it meets the tracking conditions, it switches to the centimeter-wave satellite signal with a higher priority to track the satellite. When the millimeter-wave satellite signal is detected and it meets the tracking conditions, it switches to the millimeter-wave satellite signal with an even higher priority to track the satellite. Thus, while ensuring continuous satellite tracking, it can intelligently switch the signal tracking mode according to the actual situation and the priority level, and can ensure the tracking effect.

[0054] In one of the embodiments, step S400 may further include the following steps: If it is determined that the centimeter-wave satellite signal does not meet the tracking conditions, then control the antenna to continue to perform satellite tracking according to the prediction program, and perform dynamic phase calibration on the centimeter-wave satellite signal until the centimeter-wave satellite signal meets the tracking conditions.

[0055] When the centimeter-wave satellite signal is detected but it does not meet the tracking conditions, the working mode of the antenna is not switched at this time, that is, the antenna is still controlled to perform satellite tracking according to the prediction program, and at the same time, dynamic phase calibration is performed on the centimeter-wave satellite signal to make the centimeter-wave satellite signal meet the tracking conditions. Specifically, in the program tracking mode, a small angle can be automatically pulled, and the error voltage output by the receiver can be read to achieve fast phase calibration. Generally, the number of phase calibration times is 1 to 3 times to ensure stable tracking of the antenna.

[0056] Similarly, step S600 may further include the following steps: If it is determined that the millimeter-wave satellite signal does not meet the tracking conditions, then control the antenna to continue to perform satellite tracking according to the centimeter-wave satellite signal, and perform dynamic phase calibration on the millimeter-wave satellite signal until the millimeter-wave satellite signal meets the tracking conditions.

[0057] When a millimeter-wave satellite signal is detected but does not meet the tracking conditions, the working mode of the antenna is not switched at this time. That is, the antenna is still controlled to track the satellite according to the centimeter-wave satellite signal, and at the same time, dynamic phase calibration is performed on the millimeter-wave satellite signal to make the millimeter-wave satellite signal meet the tracking conditions. Specifically, in the centimeter-wave satellite signal tracking mode, a small angle can be automatically pulled, and the error voltage output by the receiver is read to achieve fast phase calibration. Generally, the number of phase calibration times is 1 to 3 times to ensure stable tracking of the antenna. When the millimeter-wave satellite signal meets the tracking conditions, the centimeter-wave satellite signal tracking mode is switched to the millimeter-wave satellite signal tracking mode, that is, the antenna is controlled to track the satellite according to the millimeter-wave satellite signal.

[0058] In one embodiment, at least one of the tracking error signal, AGC level signal, and signal lock indication obtained by demodulation is included in both the centimeter-wave satellite signal and the millimeter-wave satellite signal.

[0059] After the ground antenna tracking system receives the centimeter-wave satellite signal or the millimeter-wave satellite signal, after first performing signal processing such as amplifying, frequency-converting, and demodulating the satellite signal, at least one of the demodulated tracking error signal, AGC level signal, and signal lock indication can be obtained.

[0060] In step S400 or step S600, that is, in the step of determining whether the centimeter-wave satellite signal or the millimeter-wave satellite signal meets the tracking conditions, if any of the following conditions is not met, it is determined that the centimeter-wave satellite signal or the millimeter-wave satellite signal does not meet the tracking conditions:

[0061] (1) The signal lock indication is in the locked state;

[0062] (2) The AGC level is greater than or equal to the set value;

[0063] (3) The tracking error is less than or equal to the error tolerance value;

[0064] (4) Voltage polarization: positive bias negative voltage, negative bias positive voltage.

[0065] In one embodiment, the tracking error signal may include an azimuth error voltage and an elevation error voltage. Among them, the tracking error in the above tracking conditions being less than or equal to the error tolerance value may include that both the azimuth error voltage jitter and the elevation error voltage jitter are less than or equal to the first error tolerance value, and both the azimuth error voltage slope and the elevation error voltage slope are less than or equal to the second error tolerance value. For example, it can be set that the azimuth / elevation error voltage jitter is less than or equal to 1.5 volts, and it can be set that the azimuth / elevation error voltage is less than or equal to 5 volts / mil.

[0066] In addition, during the tracking process, special situations may occur, such as signal loss (lock loss), excessive level fluctuations, and decreased tracking accuracy. To address the above special situations and ensure the tracking effect, in one embodiment, in step S400, that is, the step of controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal, the signal quality of the centimeter-wave satellite signal is detected in real time. If the signal quality of the centimeter-wave satellite signal is abnormal, the process returns to the step of controlling the antenna to perform satellite tracking according to the prediction program.

[0067] In one embodiment, in step S600, that is, the step of controlling the antenna to perform satellite tracking according to the millimeter-wave satellite signal, the signal quality of the millimeter-wave satellite signal is detected in real time. If the signal quality of the millimeter-wave satellite signal is abnormal, the process returns to the step of controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal.

[0068] That is, in both the centimeter-wave satellite signal tracking mode and the millimeter-wave satellite signal tracking mode, the signal quality can be monitored in real time, and the tracking parameters can be dynamically adjusted to ensure the optimization of the tracking effect.

[0069] Specifically, the detection criterion for the signal quality is the same as the detection criterion for the tracking conditions in the previous text, that is, it is detected whether the current satellite signal meets the above 4 conditions. If any one of the conditions is not met, it is determined that the signal quality of the current satellite signal is abnormal. Suppose that the current is in the millimeter-wave satellite signal tracking mode. If it is detected that the signal quality of the millimeter-wave satellite signal is abnormal, the process returns to the centimeter-wave satellite signal tracking mode. If the current is in the centimeter-wave satellite signal tracking mode and it is detected that the signal quality of the centimeter-wave satellite signal is abnormal, the process returns to the program tracking mode.

[0070] Based on the real-time detection result of the signal quality of the satellite signal, the antenna can be controlled to automatically switch to the optimal tracking mode to ensure the signal reception quality and the continuous tracking of the antenna.

[0071] In this embodiment, during the above tracking process, when it is detected that the tracking duration reaches the preset duration, the antenna is controlled to stop satellite tracking and enter the standby state, waiting for the next task.

[0072] Refer to Figure 2, in one embodiment, an antenna self-tracking system is provided, which includes an antenna 100, a dual-band feed 200, a first tracking channel 310, a first tracking receiver 320, a second tracking channel 330, a second tracking receiver 340, and a control unit 400. Among them, the dual-band feed 200 is connected to the antenna 100 and is used to receive the centimeter-wave satellite signal and millimeter-wave satellite signal tracked by the antenna 100. The first tracking receiver 320 is connected to the dual-band feed 200 through the first tracking channel 310 and is used to process the centimeter-wave satellite signal. The second tracking receiver 340 is connected to the dual-band feed 200 through the second tracking channel 330 and is used to process the millimeter-wave satellite signal. The control unit 400 is respectively connected to the antenna 100, the first tracking receiver 320, and the second tracking receiver 340. Among them, the control unit 400 can be connected to the antenna 100 through a driving unit 500. The control unit 400 is configured to execute the antenna self-tracking control method provided in the foregoing embodiment.

[0073] Specifically, for a medium-earth-orbit relay satellite ground station, a large-aperture X / Q dual-band antenna can be selected. The half-power beam width of its X-band antenna is approximately 0.2°, and the half-power beam width of its Q-band antenna is approximately 0.043°.

[0074] For the tracking of X-band TT&C signals, a single-channel monopulse tracking method can be adopted. For the tracking of Q-band data transmission signals, a dual-channel monopulse tracking method can be adopted. When the satellite enters the coverage area of the ground station antenna, the antenna can first guide the antenna to track the satellite according to the central plan and orbital elements program. The X-band TT&C sum and difference RF signals output by the antenna feed are amplified by their respective low-noise field amplifiers, synthesized into a single-channel signal in the first tracking channel, then frequency-converted to 70 MHz intermediate frequency, and sent to the spread-spectrum tracking receiver (i.e., the first tracking receiver). After the receiver demodulates the tracking error signal, AGC level, and lock indication, they are sent to the control unit. At the same time, the Q-band data transmission sum and difference RF signals output by the antenna feed are amplified by their respective low-noise field amplifiers, frequency-converted to 70 MHz intermediate frequency, and then sent to the data transmission tracking receiver (i.e., the second tracking receiver) through the second tracking channel. After the receiver demodulates the tracking error signal, AGC level, and lock indication, they are sent to the control unit. When the control unit receives the satellite signals of each band, it can execute the corresponding self-tracking control method.

[0075] Regarding the antenna self-tracking control method executed by the control unit, reference can be made to the specific content in the antenna self-tracking control method provided in the foregoing embodiment, which will not be elaborated here.

[0076] In one embodiment, a computer device is provided, which includes a memory, a processor, a communication board, and a time code board. The memory stores a computer program. When the processor executes the computer program, it cooperates with the communication board and the time code board to implement the steps in the above method embodiments.

[0077] Figure 3 FIG. is a schematic structural diagram of a computer device provided in an embodiment of the present application. The computer device may be a server, and its internal structural diagram may be as Figure 3 shown. The computer device includes a processor, a memory, a communication board, and a time code board connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store various types of data related to the antenna self-tracking control method. The communication board of the computer device can be connected and communicate with an external antenna feeder sub-device through a 422 / 485 interface. The time code board is used to ensure the accurate consistency between the computer time scale and the external time system time. When the computer program is executed by the processor, it implements an antenna self-tracking control method.

[0078] Those skilled in the art can understand that Figure 3 the structure shown in

[0079] is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have a different component layout.

[0080] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, it implements the steps in the above method embodiments.

[0081] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above various methods. Among them, any reference to a memory, storage, database, or other medium used in the various embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0082] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0083] The above embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An antenna self-tracking system, characterized in that, Comprising: An antenna; A dual-band feed, which is used to receive centimeter-wave satellite signals and millimeter-wave satellite signals tracked by the antenna; A first tracking channel and a first tracking receiver. The X-band TT&C sum and difference RF signals output by the dual-band feed are amplified, synthesized into a single-channel signal in the first tracking channel, frequency-converted to 70 MHz intermediate frequency, and then the tracking error signal, AGC level, and lock indication are demodulated by the first tracking receiver; A second tracking channel and a second tracking receiver. The Q-band data transmission sum and difference RF signals output by the antenna feed are amplified, frequency-converted to 70 MHz intermediate frequency, and then the tracking error signal, AGC level, and lock indication are demodulated by the second tracking receiver; A control unit, which is configured to: Control the antenna to perform satellite tracking according to the prediction program and continuously detect centimeter-wave satellite signals and millimeter-wave satellite signals; When a centimeter-wave satellite signal is detected, determine whether the centimeter-wave satellite signal meets the tracking conditions. If it meets the conditions, control the antenna to perform satellite tracking according to the centimeter-wave satellite signal. Otherwise, control the antenna to continue performing satellite tracking according to the prediction program, and perform small-angle deviation phase correction on the centimeter-wave satellite signal until the centimeter-wave satellite signal meets the tracking conditions; When a millimeter-wave satellite signal is detected, determine whether the millimeter-wave satellite signal meets the tracking conditions. If it meets the conditions, control the antenna to perform satellite tracking according to the millimeter-wave satellite signal. Otherwise, control the antenna to continue performing satellite tracking according to the centimeter-wave satellite signal, and perform small-angle deviation phase correction on the millimeter-wave satellite signal until the millimeter-wave satellite signal meets the tracking conditions; The tracking conditions include: the signal lock indication is in the locked state; AGC level ≥ set value; tracking error ≤ error tolerance value, including that the voltage jitters of the azimuth and elevation error voltages are both ≤ the first error tolerance value, and the voltage slopes of the azimuth and elevation error voltages are both ≤ the second error tolerance value; voltage polarization: positive bias negative voltage, negative bias positive voltage.

2. The antenna self-tracking system according to claim 1, wherein The control unit is further configured to: in the step of controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal, detect the signal quality of the centimeter-wave satellite signal in real time. If the signal quality of the centimeter-wave satellite signal is abnormal, return to the step of controlling the antenna to perform satellite tracking according to the prediction program.

3. The antenna self-tracking system according to claim 1, characterized in that, The control unit is further configured to: in the step of controlling the antenna to perform satellite tracking according to the millimeter-wave satellite signal, detect the signal quality of the millimeter-wave satellite signal in real time. If the signal quality of the millimeter-wave satellite signal is abnormal, return to the step of controlling the antenna to perform satellite tracking according to the centimeter-wave satellite signal.

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