Semi-physical simulation test system and test method suitable for two-dimensional search space target system

Abstract

The invention discloses a semi-physical simulation test system suitable for a two-dimensional search space target system. The semi-physical simulation test system comprises a dynamics computer; the light star simulator is respectively connected with the dynamics computer and the two-dimensional search space target system, receives the quaternion of a target star point pointing to a sky area simulated by the dynamics computer, and sends a simulation result to the two-dimensional search space target system in the form of image data to complete light path simulation; the interface simulator is respectively connected with the dynamics computer and the two-dimensional search space target system, receives GNC data, mechanism geodetic survey data and a target star point mass center data packet simulated by the dynamics computer, and respectively sends the three data to the two-dimensional search space target system in an RS422 form to finish electric path simulation; and the upper computer is in communication connection with the two-dimensional search space target system through the 1553B simulator and is used for displaying a simulation result. The invention further provides a testing method which has important practical value and application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of space target detection, and in particular to a semi-physical simulation test system and a test method suitable for a two-dimensional search space target system. Background Art

[0002] With the continuous development and competition in the field of space security, space situational awareness has become an important foundation for space security protection and space control. Space target identification is an important part of space situational awareness and has great military value. It can not only help determine the space capabilities of potential enemies, but also perform orbital recursion of space targets, warn of space collisions and attacks on one's own space systems, etc.

[0003] In order to ensure the effectiveness and reliability of the space target recognition system, it is particularly important to design a simulation test system and test method. This system can simulate the real two-dimensional search space target environment, so as to test and evaluate the performance of the target recognition system and ensure that it can accurately identify and track targets in the complex and changing space environment.

[0004] It should be understood that the above statements merely provide background technology related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a semi-physical simulation test system and test method suitable for a two-dimensional search space target system, simulating a real two-dimensional search space target environment, so as to test and evaluate the performance of the target recognition system and ensure that it can accurately identify and track targets in a complex and changeable space environment.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a semi-physical simulation test system suitable for a two-dimensional search space target system, which is used for performing simulation test on the two-dimensional search space target system, and comprises: a dynamics computer, which simulates the quaternion of the target star point pointing to the sky area, GNC data, mechanism ground measurement data and target star point centroid data packet, and sends them in the form of UDP respectively; an optical star simulator, which is respectively connected to the dynamics computer and the two-dimensional search space target system, and the optical star simulator receives the quaternion of the target star point pointing to the sky area simulated by the dynamics computer in real time, and sends the simulation result in the form of image data to the two-dimensional search space target system to complete the optical path simulation; an interface simulator, which is respectively connected to the dynamics computer and the two-dimensional search space target system, and receives the GNC data, mechanism ground measurement data and target star point centroid data packet simulated by the dynamics computer in real time, and sends these three data in the form of RS422 respectively to the two-dimensional search space target system to complete the electrical path simulation; and a host computer, which is connected to the two-dimensional search space target system through a 1553B simulator for communication, and controls and displays the two-dimensional search space target system.

[0007] Preferably, the quaternion of the target star point pointing to the sky area represents the rotation state of the target star point relative to a certain reference coordinate system, that is, the attitude and coordinate position of the target star point; the mechanism ground measurement data includes the two-dimensional space rotation information of the two-dimensional search space target system, the GNC data includes the attitude information of the satellite platform on which the two-dimensional search space target system is located, and the target star point centroid data packet includes the centroid data information of the stars and the target star points in the sky area.

[0008] Preferably, the optical star simulator simulates the stars and target star points in the current sky area through the navigation star library stored inside it, and sets the size and grayscale value of the target star point.

[0009] The optical star simulator can display the sky area statically or dynamically display the entire sky area.

[0010] Preferably, the two-dimensional search space target system feeds back the received RS422 form of mechanism ground measurement data to the interface simulator after completing the electrical path simulation. The interface simulator then converts the RS422 form into UDP format and sends it to the dynamic computer for comparison and confirmation with the mechanism ground measurement data simulated by the dynamic computer.

[0011] Preferably, the host computer sends instructions to the 1553B simulator via an uplink, which is then sent to the two-dimensional search space target system via the 1553B simulator via a corresponding sub-address; the two-dimensional search space target system sends telemetry to the 1553B simulator via a downlink, which is then sent to the host computer for display via the 1553B simulator via a corresponding sub-address.

[0012] Preferably, the host computer is also connected to the interface simulator. After the two-dimensional search space target system completes the optical path simulation or the electrical path simulation, the simulation result is transmitted to the interface simulator via LVDS data transmission, and the interface simulator outputs the simulation result to the host computer for storage.

[0013] The present invention also provides a semi-physical simulation test method suitable for a two-dimensional search space target system, which is implemented using the above-mentioned semi-physical simulation test system and specifically includes the following steps: S1, starting a dynamics computer, and simulating the establishment of a quaternion of a target star point pointing to the sky area, GNC data, mechanism ground measurement data, and a target star point centroid data packet; S2, an optical star simulator receives the quaternion of the target star point pointing to the sky area simulated by the dynamics computer, and generates image data and sends it to the two-dimensional search space target system to complete the optical path simulation; S3, an interface simulator receives the GNC data, mechanism ground measurement data, and target point centroid data in the form of UDP simulated by the dynamics computer The star point centroid data packet is marked, and the GNC data, mechanism ground measurement data and target star point centroid data packet are sent to the two-dimensional search space target system in the form of RS422 data to complete the electrical path simulation; S4, the host computer sends an instruction to the two-dimensional search space target system, thereby the two-dimensional search space target system sends the telemetry to the host computer, and the simulation results are displayed on the host computer; S5, the two-dimensional search space target system transmits the simulation results in S2 or S3 to the interface simulator through LVDS data transmission, and the interface simulator outputs the data to the host computer for storage for subsequent processing.

[0014] Preferably, in S3, the two-dimensional search space target system feeds back the received mechanism ground measurement data in RS422 format to the interface simulator after completing the electrical path simulation, and the interface simulator converts the received mechanism ground measurement data in RS422 format into UDP format and sends it to the dynamic computer for comparison and confirmation with the mechanism ground measurement data simulated by the dynamic computer.

[0015] Preferably, in S4, the host computer and the two-dimensional search space target system communicate and interact via a 1553B simulator.

[0016] In summary, compared with the prior art, the semi-physical simulation test system provided by the present invention is suitable for a two-dimensional search space target system. By means of optical path simulation or electrical path simulation, the system can simulate the two-dimensional space rotation information of stars and target star points in the sky and the two-dimensional search space target system in real time to complete the simulation test of the two-dimensional search space target system. In addition, through the cooperation of the terminal remote control software and the terminal telemetry display software in the host computer, the operator can more intuitively send remote control commands and receive and display telemetry data, thereby improving the accuracy and efficiency of the test. The present invention also provides a semi-physical simulation test system and test method, which provides a new solution for the test of the two-dimensional search space target system, and has important practical value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the semi-physical simulation test system of the present invention. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1 , the present invention is further explained by describing a preferred specific embodiment in detail.

[0019] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0020] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] The two-dimensional search space target system 1 is a system that can effectively search and locate targets in a two-dimensional space.

[0022] like Figure 1As shown, the present invention provides a semi-physical simulation test system suitable for a two-dimensional search space target system, which is used to perform simulation test on the two-dimensional search space target system 1, and to simulate stars and celestial target star points and their positions and two-dimensional space rotation information in real time by means of optical path simulation or electrical path simulation. In the present invention, the target star points represent detected satellites, space debris or other space objects, which are of special concern because they pose a potential threat to space activities or have other important values.

[0023] Wherein, the semi-physical simulation test system comprises:

[0024] The dynamic computer 5 simulates the quaternion of the target star point pointing to the sky area, the guidance, navigation and control (GNC) data, the mechanism ground measurement data and the target star point centroid data packet, and converts them into the form of User Datagram Protocol (UDP) for transmission; it should be noted that the quaternion of the target star point pointing to the sky area represents the rotation state of the target star point relative to a certain reference coordinate system (such as inertial or body coordinate system), that is, the attitude and coordinate position of the target star point, which is used for light path simulation; the mechanism ground measurement data contains the two-dimensional space rotation information of the two-dimensional search space target system, the GNC data contains the attitude information of the satellite platform where the two-dimensional search space target system is located, and the target star point centroid data packet contains the centroid data information of the stars and the target star points in the sky area, and these three data are used for electrical path simulation;

[0025] The optical star simulator 2 is connected to the dynamics computer 5 and the two-dimensional search space target system 1 respectively, and receives the quaternion of the target star point pointing to the sky area sent by the dynamics computer 5 in the form of UDP in real time, and simulates the stars and target star points in the current sky area through the navigation star library stored inside it, sets the size and gray value of the target star point, and then sends the simulation result to the two-dimensional search space target system 1 in the form of image data to complete the light path simulation; it should be noted that the optical star simulator 2 can display the sky area statically or dynamically display the entire sky area; and when the dynamic entire sky area is displayed, the optical star simulator 2 interacts with the dynamics computer 5 in real time;

[0026] The interface simulator 4 is connected to the dynamic computer 5 and the two-dimensional search space target system 1 respectively, receives the GNC data, the mechanism ground measurement data and the centroid data packet of the target star point sent by the dynamic computer 5 in the form of UDP in real time, and sends the above three data to the two-dimensional search space target system 1 in the form of RS422 respectively, so as to complete the electrical path simulation;

[0027] The host computer 6 is communicatively connected with the two-dimensional search space target system 1 through the 1553B simulator 3; wherein the 1553B simulator 3 realizes the communication function of the analog digital tube for the 1553B link, can flexibly configure different remote terminals and sub-addresses, and plays the role of a bus controller, thereby realizing high-speed data communication between different electronic devices.

[0028] Furthermore, in the electrical path simulation, the two-dimensional search space target system 1 only processes the data information of the received GNC data in RS422 format and the target star point centroid data packet, and no longer feeds back the data to other places; and after the simulation is completed, the received mechanism ground measurement data in RS422 format will be fed back to the interface simulator 4, and then converted into data in UDP format and sent to the dynamic computer 5 for comparison and confirmation with the mechanism ground measurement data originally simulated by the dynamic computer 5.

[0029] Further, whether in optical path simulation or electrical path simulation, the terminal remote control software set in the host computer 6 can send instructions to the 1553B simulator 3 through the uplink, and then send it to the two-dimensional search space target system 1 through the corresponding sub-address via the 1553B simulator 3. At the same time, the two-dimensional search space target system 1 can send telemetry to the 1553B simulator 3 through the downlink, and then send it to the host computer 6 through the corresponding sub-address via the 1553B simulator 3, and display it through the terminal telemetry display software in the host computer 6. In other words, the host computer 6 sends instructions to the two-dimensional search space target system 1 through the uplink, and the two-dimensional search space target system 1 sends telemetry (data) to the host computer 6 through the downlink after receiving the instructions, and displays it on the host computer 6.

[0030] Furthermore, the host computer 6 is also connected to the interface simulator 4. After completing the optical path simulation or the electrical path simulation, the two-dimensional search space target system 1 will also transmit the simulation results to the interface simulator 4 through LVDS data transmission, and the interface simulator 4 will output the simulation results to the host computer 6 for storage for subsequent processing.

[0031] The present invention also provides a semi-physical simulation test method applicable to a two-dimensional search space target system, which is implemented using the above-mentioned semi-physical simulation test system and specifically comprises the following steps:

[0032] S1, start the dynamics computer 5, and simulate and establish the quaternion, GNC data, mechanism ground measurement data and target star point centroid data packet of the target star point pointing to the sky area;

[0033] S2, the optical star simulator 2 receives the quaternion of the target star point pointing to the sky area in the form of UDP simulated by the dynamics computer 5, and sends it to the two-dimensional search space target system 1 after generating the simulation, to complete the optical path simulation;

[0034] S3, the interface simulator 4 receives the GNC data, mechanism ground measurement data and target star point centroid data packets in UDP format simulated by the dynamics computer 5, and sends the GNC data, mechanism ground measurement data and target star point centroid data packets to the two-dimensional search space target system 1 in RS422 format to complete the electrical path simulation;

[0035] S4, the host computer 6 sends a command to the two-dimensional search space target system 1, whereby the two-dimensional search space target system 1 sends telemetry to the host computer 6, and the simulation result is displayed on the host computer 6;

[0036] S5, two-dimensional search space target system 1 transmits the simulation result in S2 or S3 to the interface simulator 4 through LVDS data transmission, and the interface simulator 4 outputs the data to the host computer 6 for storage.

[0037] Furthermore, in S3, the two-dimensional search space target system 1 feeds back the received mechanism ground measurement data in RS422 format to the interface simulator 4 after completing the simulation, and then converts it into UDP format and sends it to the dynamic computer 5 to compare and confirm it with the mechanism ground measurement data originally simulated by the dynamic computer 5.

[0038] Furthermore, in the S4, the host computer 6 and the two-dimensional search space target system 1 communicate and interact through the 1553B simulator 3; wherein, the terminal remote control software provided in the host computer 6 can send instructions to the 1553B simulator 3 through an uplink, and then send them to the two-dimensional search space target system 1 through the 1553B simulator 3 through a corresponding sub-address; at the same time, the two-dimensional search space target system 1 can send telemetry to the 1553B simulator 3 through a downlink, and then send them to the host computer 6 through the 1553B simulator 3 through a corresponding sub-address, and display them through the terminal telemetry display software in the host computer 6.

[0039] In summary, the present invention provides a semi-physical simulation test system suitable for a two-dimensional search space target system. By means of optical path simulation or electrical path simulation, the system can simulate the two-dimensional space rotation information of stars and target star points in the sky and the two-dimensional search space target system in real time to complete the simulation test of the two-dimensional search space target system. In addition, through the cooperation of the terminal remote control software and the terminal telemetry display software in the host computer, the operator can more intuitively send remote control commands and receive and display telemetry data, thereby improving the accuracy and efficiency of the test. The present invention also provides a semi-physical simulation test system and test method, which provides a new solution for the test of the two-dimensional search space target system, and has important practical value and application prospects.

[0040] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A semi-physical simulation test system suitable for a two-dimensional search space target system, used for performing simulation test on the two-dimensional search space target system, characterized in that: include: The dynamic computer simulates the quaternion, GNC data, geodetic data of the target star point and the data packet of the centroid of the target star point pointing to the sky area, and sends them in the form of UDP respectively; An optical star simulator is connected to the dynamics computer and the two-dimensional search space target system respectively, and the optical star simulator receives the quaternion of the target star point pointing to the sky area simulated by the dynamics computer in real time, and sends the simulation result to the two-dimensional search space target system in the form of image data to complete the light path simulation; An interface simulator is connected to the dynamics computer and the two-dimensional search space target system respectively, receives the GNC data, mechanism ground measurement data and target star point centroid data packet simulated by the dynamics computer in real time, and sends the three data to the two-dimensional search space target system in RS422 form respectively, to complete the electrical path simulation; The host computer is connected to the two-dimensional search space target system through the 1553B simulator to control and display the two-dimensional search space target system.

2. The semi-physical simulation test system for a two-dimensional search space target system according to claim 1, characterized in that: The quaternion of the target star point pointing to the sky area represents the rotation state of the target star point relative to a certain reference coordinate system, that is, the attitude and coordinate position of the target star point; The mechanism ground survey data includes two-dimensional space rotation information of the two-dimensional search space target system, the GNC data includes attitude information of the satellite platform where the two-dimensional search space target system is located, and the target star point centroid data packet includes centroid data information of stars and sky target star points.

3. The semi-physical simulation test system suitable for a two-dimensional search space target system as claimed in claim 2, characterized in that: The optical star simulator simulates the stars and target star points in the current sky area through the navigation star library stored inside it, and sets the size and grayscale value of the target star point.

4. The semi-physical simulation test system for a two-dimensional search space target system as claimed in claim 3, characterized in that: The optical star simulator can display the sky area statically or dynamically display the entire sky area.

5. The semi-physical simulation test system for a two-dimensional search space target system according to claim 1, characterized in that: The two-dimensional search space target system receives the mechanism ground measurement data in RS422 format, and after completing the electrical path simulation, feeds back the simulated mechanism ground measurement data in RS422 format to the interface simulator. The interface simulator then converts the data into UDP format and sends it to the dynamic computer for comparison and confirmation with the mechanism ground measurement data simulated by the dynamic computer.

6. The semi-physical simulation test system for a two-dimensional search space target system according to claim 1, characterized in that: The host computer sends a command to the 1553B simulator via an uplink, and the command is then sent to the two-dimensional search space target system via the 1553B simulator via a corresponding sub-address; The two-dimensional search space target system sends the telemetry to the 1553B simulator via a downlink, and then the 1553B simulator sends it to the host computer for display via a corresponding sub-address.

7. The semi-physical simulation test system for a two-dimensional search space target system according to claim 1, characterized in that: The host computer is also connected to the interface simulator. After the two-dimensional search space target system completes the optical path simulation or the electrical path simulation, the simulation result is transmitted to the interface simulator through LVDS data transmission, and the interface simulator outputs the simulation result to the host computer for storage.

8. The present invention also provides a semi-physical simulation test method applicable to a two-dimensional search space target system, which is implemented using a semi-physical simulation test system as described in any one of claims 1 to 7, characterized in that: The specific steps include: S1. Start the dynamics computer and simulate the establishment of the quaternion, GNC data, institutional ground measurement data and target star point centroid data package of the target star point pointing to the sky area; S2, the optical star simulator receives the quaternion of the target star point pointing to the sky area simulated by the dynamics computer, generates image data and sends it to the two-dimensional search space target system to complete the optical path simulation; S3, the interface simulator receives the GNC data, mechanism ground measurement data and target star point centroid data packets in UDP format simulated by the dynamics computer, and sends the GNC data, mechanism ground measurement data and target star point centroid data packets to the two-dimensional search space target system in RS422 format to complete the electrical path simulation; S4, the host computer sends a command to the two-dimensional search space target system, whereby the two-dimensional search space target system sends telemetry to the host computer, and the simulation result is displayed on the host computer; S5. The two-dimensional search space target system transmits the simulation results in S2 or S3 to the interface simulator via LVDS data transmission, and the interface simulator outputs the data to the host computer for storage for subsequent processing.

9. The semi-physical simulation test method for a two-dimensional search space target system according to claim 8, characterized in that: In the S3, the two-dimensional search space target system receives the mechanism ground measurement data in RS422 format, and after completing the electrical path simulation, feeds back the simulated mechanism ground measurement data in RS422 format to the interface simulator, and the interface simulator converts it into UDP format and sends it to the dynamic computer for comparison and confirmation with the mechanism ground measurement data simulated by the dynamic computer.

10. The semi-physical simulation test method applicable to a two-dimensional search space target system according to claim 8, characterized in that: In the above S4, the host computer and the two-dimensional search space target system communicate and interact via a 1553B simulator.

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