CN102393213B - Space-based detection and tracking imaging system testing device and testing method - Google Patents

Abstract

The invention provides a test device and a test method for a space-based detection and tracking imaging system. Its test device includes an air bearing table (1), a high-precision moving target (4), a collimator mounted on the high-precision moving target to provide infinite shooting targets, and an angular velocity sensor installed on the air bearing table (1). Measuring device; the space-based detection and tracking imaging system is coaxially fixed on the rotating table of the air bearing table (1) as the system under test (5), and the three-axis intersection of the system under test is a high-precision moving target (4) rotating The apex of the light cone; the rotating platform is bolted to the traction line along its tangential direction and the weight (2) is suspended by winding the fixed pulley, and the tangential force is exerted on the rotating platform by the self-weight of the weight. The invention realizes the testing of multiple important performance indicators of the space-based detection and tracking imaging system, thereby performing further adjustment and optimization, ensuring the quality of the product, and ensuring the quality and normal operation of the space-based detection and tracking imaging system.

Description

Space-based detection and tracking imaging system test device and test method

technical field

The invention belongs to space target detection and tracking imaging technology, in particular to a measurement method and testing device for the performance parameters of such equipment as space target detection and tracking imaging.

Background technique

The function of the space-based (space-borne) detection and tracking imaging system is to accurately detect and track and image important space targets, and determine the mission, size, shape and Important target characteristics such as orbital parameters; classify and distribute target characteristic data. The development of space-based detection and tracking imaging systems is conducive to improving my country's ability to monitor, track and identify space targets, and to enhance real-time perception of space battlefield situations and space offensive and defensive capabilities. In addition, the development of space-based detection and tracking imaging systems is also conducive to the development and renewal of my country's aerospace launch sites, that is, it is conducive to the upgrading of the shooting range from ground-based shooting ranges to space-based shooting ranges. Compared with ground-based monitoring and measurement, space-based detection and tracking imaging system has the following advantages: (1) It is not restricted by geographical location, has a large coverage area, and it is easy to realize continuous monitoring, tracking and precise feature measurement of targets; (2) Not limited by meteorological conditions, the detection effect is good; (3) the survivability in combat is strong, and it can realize full-range, multi-orbit launch and global mobile launch; (4) it can greatly shorten the turnaround time of space launch.

The so-called space-based means that the platform where the equipment works is a satellite platform that works in orbit. The space-based detection and tracking imaging system is a detection and tracking imaging system that uses satellites as the working platform to work in orbit. The detection and tracking imaging system generally consists of a two-dimensional tracking turntable, an optical detection camera and an optical imaging camera. The two-dimensional tracking turntable is the tracking mechanism of the system, and its main function is to carry a detection camera and an imaging camera to realize two-dimensional rotation in space. According to the external guidance information and the real-time off-target information given by the detection camera, key targets can be continuously tracked. During the tracking process, the imaging camera and other related measurement equipment can complete the imaging of the target and the measurement of the target characteristics.

The space-based detection and tracking imaging system is a complex system with large moving parts mounted on a satellite platform. First of all, the particularity of the working environment: the satellite is in a space microgravity environment, the satellite is basically not affected by external forces (neglecting atmospheric resistance), the system is an independent system externally, and the momentum of the system is conserved. The movement of any part on the satellite and the change of the movement state will bring disturbance to the satellite platform, that is, there will be torque output to the satellite platform. If the torque is large or lasts for a long time, it will affect the attitude control of the satellite, especially in this If it is greater than the adjustment and control capabilities of the satellite attitude control system, it will affect the normal work of the satellite. This phenomenon is very terrible.

Therefore, in order to ensure the quality and normal operation of the space-based detection and tracking imaging system, it is necessary to conduct a system performance test in the laboratory. So as to carry out fine adjustment and optimization to ensure the quality of the product.

Contents of the invention

The invention provides a space-based detection and tracking imaging system testing device and a testing method to ensure the quality and on-orbit normal operation of the space-based detection and tracking imaging system.

The present invention forms technical scheme based on following theoretical analysis:

First of all, it is necessary to accurately measure and control the mechanical output of the satellite platform when the space-based detection and tracking imaging system is working. The mechanical interaction characteristics of the system and the satellite platform can be described by output torque and output angular momentum. The output torque is the instantaneous effect of the system on the mechanical output of the satellite platform, and the output angular momentum is the cumulative effect of the system on the mechanical output of the satellite platform. Both the output torque and the output angular momentum can be converted to each other through differential and integral relations.

Secondly, the space-based detection and tracking imaging system is carried on the satellite platform, and the satellite platform is not only subjected to space environmental moments such as gravity gradient moment, solar radiation moment, aerodynamic moment, geomagnetic moment, etc. output torque. The space environment torque is relatively small and the change is gentle. Within the adjustment range of the satellite attitude control system, although it will cause disturbance to the satellite attitude, it will not pose a threat to the normal operation of the satellite, and the output torque of the rotating parts on the star changes dramatically. , the satellite attitude control system is difficult to compensate instantaneously, so it will have a great impact on the satellite attitude. In short, the working platform of the space-based detection and tracking imaging system is moving, which will increase the difficulty of the system's work, and specifically affect the tracking accuracy, tracking stability and imaging quality of the system.

The definition of the key indicators of the system is given below.

(1) Output torque: the torque acting on the satellite platform during the working process of the space-based detection and tracking imaging system. Specifically include: starting output torque and smooth tracking output torque.

(2) Output angular momentum: the output angular momentum of the space-based detection and tracking imaging system to the satellite platform during the working process. It is the integral effect of output torque over time.

(3) Dynamic tracking accuracy: The system will output torque to the satellite platform during the working process, so that the attitude of the satellite platform is in a dynamic change, which is equivalent to the system working on a moving base. In this environment system tracking accuracy.

(4) Dynamic tracking stability: Tracking stability is the rate of change of tracking accuracy, and dynamic tracking stability is the rate of change of dynamic tracking accuracy during the system's working process. It will affect the sharpness of imaging.

(5) Dynamic imaging quality: Since the target is moving relative to the system, there will be image motion in the image of the target on the camera image plane, which will affect the definition of imaging, that is, affect the imaging quality of the camera. Dynamic imaging quality refers to the imaging quality of the system during dynamic tracking.

Technical scheme of the present invention is as follows:

A test device for a space-based detection and tracking imaging system, including an air bearing table (1), a high-precision moving target (4), a collimator mounted on the high-precision moving target to provide infinity shooting targets, and a The angular velocity measuring device on the floating platform (1); the space-based detection and tracking imaging system is coaxially fixed on the rotating platform of the air bearing platform (1) as the system under test (5), and the three-axis intersection point of the system under test is The high-precision moving target (4) rotates the apex of the light cone; the rotating platform is bolted to the traction line along its tangential direction and the weight (2) is suspended by winding the fixed pulley, and the self-weight of the weight exerts a tangential force on the rotating platform.

The above-mentioned collimator can be composed of a point target collimator (6) and an area target collimator (7), which respectively provide infinity targets for the detection camera and the imaging camera of the system under test.

The above-mentioned angular velocity measuring device preferably adopts a fiber optic gyroscope (3), which is installed on the rotating table of the air bearing platform (1), and the input axis of the fiber optic gyroscope is coaxially parallel to the rotation axis of the air bearing platform.

A method for testing a space-based detection and tracking imaging system using the above test device, including three parts of the test: (1) output torque and angular momentum test, (2) dynamic tracking accuracy and dynamic tracking smoothness test, (3) ) dynamic imaging quality test;

Wherein, (1) output torque and angular momentum test comprises the following steps:

(1.1) Install and fix the system under test on the rotating platform of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table;

(1.2) Float and level the rotating platform of the air bearing platform so that the rotating platform is parallel to the horizontal plane;

(1.3) The weight with a mass of m is connected to the rotating platform through the fixed pulley, the distance between the connection point and the rotary axis of the air bearing table is I, and the weight is used to apply a tangential force T to make the rotating platform rotate;

(1.4) the initial angular velocity ω of the rotation of the rotating platform measured by the fiber optic gyroscope fixed on the rotating platform, and calculate the angular acceleration α;

(1.5) Calculate the total moment of inertia J of the rotating platform and the equipment under test;

(1.6) Drive the moving target to rotate according to the set working parameters, the space-based detection and tracking imaging system tracks the moving target, and the angular velocity ω′ of the rotating platform measured by the fiber optic gyroscope;

(1.7) Calculate the output torque when the space-based detection and tracking imaging system is working;

(1.8) Calculate the output angular momentum of the space-based detection and tracking imaging system;

(2) Dynamic tracking accuracy and dynamic tracking smoothness tests include the following steps:

(2.1) Install and fix the system under test on the rotating platform of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table;

(2.2) Float and level the rotating platform of the air bearing platform so that the rotating platform is parallel to the horizontal plane;

(2.3) Drive the moving target to rotate according to the set working parameters, and the space-based detection and tracking imaging system tracks the moving target;

(2.4) The dynamic tracking accuracy and dynamic tracking stability can be calculated by extracting the amount of camera miss;

(3) The dynamic imaging quality test includes the following steps:

(3.1) Install and fix the system under test on the rotating platform of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table;

(3.2) Float and level the rotating platform of the air bearing platform so that the rotating platform is parallel to the horizontal plane;

(3.3) Install the target plate on the focal plane of the collimator of the moving target, drive the moving target to rotate according to the set working parameters, and the space-based detection and tracking imaging system tracks the moving target and performs imaging;

(3.4) Interpret the image and determine the dynamic imaging quality of the device under test.

The invention realizes the test of performance indicators such as output torque, output angular momentum, dynamic tracking accuracy, dynamic tracking stability, and dynamic imaging quality of the space-based detection and tracking imaging system, so as to perform further adjustment and optimization to ensure the quality of the product. Ensure the quality and normal operation of the space-based detection and tracking imaging system.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the testing device of the present invention.

Fig. 2 is a physical reference diagram of the testing device of the present invention.

Explanation of reference numbers:

1-Air bearing table; 2-High-precision weight; 3-Fiber optic gyroscope; 4-High-precision moving target; 5-Space-based detection and tracking imaging system (system under test); 6-Point target collimator; 7 - Surface target collimator.

Detailed ways

The invention mainly describes the performance parameter measurement method and testing device for such equipment as space target detection and tracking imaging. Because the equipment works on the satellite platform, in order to accurately measure or evaluate the on-orbit performance of the equipment, it is necessary to simulate the working environment of the equipment under laboratory conditions, and perform performance measurement and evaluation to verify whether it meets the design requirements. and task requirements.

Considering the impact of the space environment and satellite platform attitude changes on the performance of the space-based detection and tracking imaging system, in order to provide as accurate and reliable test results as possible for the system performance, the present invention designs an environment and a test system for simulating the system's on-orbit work. The whole test system is mainly composed of the following parts: air flotation platform, high-precision weights, fiber optic gyroscope, high-precision moving target, etc. Specifically shown in Figure 1.

The high-precision moving target can achieve high-precision and high-stability rotation, and the motion state can be controlled by a program. It is equipped with a point target collimator and a surface target collimator, which provide the detection camera and imaging camera of the system under test respectively. Infinity target. The system under test is installed on the air flotation platform. Adjust the position of the system under test to make it coaxial with the air flotation platform. This can reduce the influence of the friction torque of the air flotation platform on the test results. Adjust the apex of the rotating light cone to a high-precision moving target, so that the maximum range of tracking measurement range can be obtained. High-precision weights (used only when measuring output torque and output angular momentum, no high-precision weights are required when measuring dynamic tracking accuracy, dynamic tracking stability, and dynamic imaging quality) are suspended on the edge of the air bearing table through a fixed pulley. The air bearing table exerts a constant torque. The fiber optic gyroscope is installed on the rotating table of the air bearing table, so that the input axis of the fiber optic gyroscope is parallel to the rotation axis of the air bearing table, and the angular velocity of the air bearing table rotation is measured.

(1) Air flotation table: The air flotation table has the characteristics of small friction torque (up to <10 ^-4 Nm), ignoring the influence of the friction torque of the air flotation table, the system composed of the rotating platform and the equipment under test can rotate freely on the air flotation table Angular momentum is conserved. The function of the air bearing platform is to simulate the dynamic change of attitude of the system in orbit under laboratory conditions.

(2) High precision weight: its main function is to provide accurate input torque. Together with the fiber optic gyroscope, it can realize the measurement of the total moment of inertia of the equipment under test and the air bearing table. The moment of inertia is a physical quantity necessary for the measurement of output torque and output angular momentum.

(3) Fiber optic gyroscope: It is a precise angular velocity sensor, which is used to measure the rotational angular velocity of the air-floating platform caused by the torque output to the air-floating platform when the system is working.

(4) High-precision moving target: Two or more collimators are installed on the moving target. By installing a target plate on the focal plane of the collimator to simulate an infinite target, different target plates can simulate different target shapes and surface properties. The moving target can realize two degrees of freedom, high-precision and smooth rotation, and can precisely control its motion state through the program, and can simulate targets with different motion speeds, accelerations, and motion trajectories. Therefore, the main function of the moving target is to simulate the space infinite target in different motion forms. The detection environment similar to that of the outdoor field is obtained indoors to realize the detection of system tracking accuracy, tracking stability and dynamic imaging quality in the laboratory.

Test principle of the present invention:

(1) Output torque and angular momentum test

When the air bearing table is inflated, the friction torque is very small. When the friction force of the air bearing table is ignored, the external torque on the rotating table of the air bearing table is zero, and the angular momentum of the system composed of the rotating table of the air bearing table and the table load (mainly: the equipment under test, other measuring equipment, etc.) is conserved. Therefore, as a momentum conservation system, the air-floating platform can simulate a space satellite platform. Assuming that the rotating axis of the air bearing table is the z axis, then:

$\underset{\mathrm{<span\; class="notranslate">\; K</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}{\mathrm{<span\; class="notranslate">\; J</span>}}_{\mathrm{<span\; class="notranslate">\; Z</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; K</span>}}{\mathrm{<span\; class="notranslate">\; \&omega;</span>}}_{\mathrm{<span\; class="notranslate">\; Z</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; K</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; J</span>}}_{\mathrm{<span\; class="notranslate">\; D.</span>}}{\mathrm{<span\; class="notranslate">\; \&omega;</span>}}_{\mathrm{<span\; class="notranslate">\; D.</span>}}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

In the formula, J _{Z, K} , ω _{Z, K} are respectively the moment of inertia of the Kth rotating unit around the z-axis and the component of the rotational speed along the z-axis of the measured rotating part, and J _D , ω _D are the system stators (including: The total moment of inertia and angular velocity of the buoyant platform (rotating platform and the stationary platform load relative to the platform) around the z-axis, _H0 is the component of the initial angular momentum of the system along the z-axis. If the initial angular momentum of the system is zero, the formula (1) can be simplified as

$\underset{\mathrm{<span\; class="notranslate">\; K</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}{\mathrm{<span\; class="notranslate">\; J</span>}}_{\mathrm{<span\; class="notranslate">\; Z</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; K</span>}}{\mathrm{<span\; class="notranslate">\; \&omega;</span>}}_{\mathrm{<span\; class="notranslate">\; Z</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; K</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; J</span>}}_{\mathrm{<span\; class="notranslate">\; D.</span>}}{\mathrm{<span\; class="notranslate">\; \&omega;</span>}}_{\mathrm{<span\; class="notranslate">\; D.</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; )</span>$

The test is concerned with the output angular momentum of the rotating part to its mounting surface when it is working, not its own angular momentum. Therefore, the formula (2) can be sorted out: the output angular momentum H _out of the rotating part under test is

$h_{\mathrm{out}}=\underset{K}{\mathrm{\&Sigma;}}{J}_{Z,K}({\mathrm{\&omega;}}_{Z,K}-{\mathrm{\&omega;}}_{\mathrm{D.}})$ (3)

$<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; J</span>}}_{\mathrm{<span\; class="notranslate">\; D.</span>}}<span\; class="notranslate">\; +</span>\underset{\mathrm{<span\; class="notranslate">\; K</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}{\mathrm{<span\; class="notranslate">\; J</span>}}_{\mathrm{<span\; class="notranslate">\; Z</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; K</span>}}<span\; class="notranslate">\; )</span>{\mathrm{<span\; class="notranslate">\; \&omega;</span>}}_{\mathrm{<span\; class="notranslate">\; D.</span>}}$

It is not difficult to see that ω _{Z, K} - ω _D is the rotational angular velocity of the Kth rotating unit relative to the mounting surface (i.e., the surface of the air bearing table), is the total angular momentum output by the rotating part under test to its mounting surface, is the total moment of inertia of the system, It is the disturbance of the mechanical output of the rotating part to the system, and it can be differentiated to obtain the magnitude and change of the output torque of the rotating part. The use of air floating platform can realize the And the direct measurement of ω _D , so as to obtain the size of the output angular momentum of the rotating parts.

The output torque is the differential of the output angular momentum with respect to time, therefore, it is sufficient to differentiate the measured output angular momentum.

(2) Dynamic tracking accuracy and dynamic tracking smoothness test

Float the air bearing platform to simulate the satellite platform where the equipment works in orbit. According to the characteristics of the space target, the relative position relationship between the target and the satellite, and the relative motion turntable, the corresponding target board is made, and the working parameters of the moving target are set in combination with the performance indicators of the system under test, so that the speed, acceleration and trajectory of the moving target are consistent with The corresponding parameters of the space target are consistent. Drive the movement of the moving target according to the set parameters, simulate the infinite moving target flying in the air, the device under test tracks the moving target, and extract the amount of camera miss to calculate the dynamic tracking accuracy and dynamic tracking stability.

(3) Dynamic imaging quality test

Float the air bearing platform to simulate the satellite platform where the equipment works in orbit. According to the characteristics of the space target, the relative position relationship between the target and the satellite, and the relative motion turntable, the corresponding target board is made, and the working parameters of the moving target are set in combination with the performance indicators of the system under test, so that the speed, acceleration and trajectory of the moving target are consistent with The corresponding parameters of the space target are consistent. Drive the movement of the moving target according to the set parameters, place a discriminative rate plate or a stripe plate at the focal plane of the moving target parallel light tube, simulate the infinite moving target flying in the air, the device under test tracks the moving target, and provides the information provided by the moving target Imaging by simulating a moving target, interpreting the image and determining the dynamic imaging quality of the device under test.

The present invention is as follows to the concrete test procedure of each index of tested system:

(1) Output torque and angular momentum test

(1.1) Firmly fix the system under test on the rotating table of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table;

(1.2) Float the air flotation platform and adjust the leveling link so that the air flotation platform is parallel to the horizontal plane;

(1.3) The weight with a mass of m is connected to the rotating part of the air-floating platform through the pulley, the connection point is at a distance I from the rotating shaft of the platform, and the tangential force T is applied by the weight of the weight to make the air-floating platform rotate;

(1.4) The angular velocity (ω) of the air bearing table rotation measured by the rate gyroscope fixed on the air bearing table surface, and the angular acceleration (α) is calculated;

(1.5) Calculate the total moment of inertia (J) of the rotating table of the air bearing table and the equipment under test;

(1.6) Drive the moving target to rotate according to the set working parameters, the space-based detection and tracking imaging system tracks the moving target, and the angular velocity (ω′) of the air-floating platform movement measured by the rate gyro;

(1.7) Calculate the output torque when the space-based detection and tracking imaging system is working;

(1.8) Calculate the output angular momentum of the space-based detection and tracking imaging system when it is working.

(2) Dynamic tracking accuracy and dynamic tracking smoothness test

(2.1) Firmly fix the system under test on the rotating table of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table;

(2.2) Float the air flotation platform and adjust the leveling link so that the air flotation platform is parallel to the horizontal plane;

(2.3) Drive the moving target to rotate according to the set working parameters, and the space-based detection and tracking imaging system tracks the moving target;

(2.4) The dynamic tracking accuracy and dynamic tracking stability can be calculated by extracting the camera off-target amount.

(3) Dynamic imaging quality test

(3.1) Fix the system under test firmly on the rotating table of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table;

(3.2) Float the air flotation platform and adjust the leveling link so that the air flotation platform is parallel to the horizontal plane;

(3.3) Install a suitable target plate on the focal plane of the collimator of the moving target, drive the moving target to rotate according to the set working parameters, and the space-based detection and tracking imaging system tracks the moving target and performs imaging;

(3.4) Interpret the image and determine the dynamic imaging quality of the device under test.

Claims (4)

1. The test device of the space-based detection and tracking imaging system, including an air bearing table (1), a high-precision moving target (4), a collimator mounted on the high-precision moving target to provide infinite shooting targets, and an installation The angular velocity measurement device on the air bearing table (1); the space-based detection and tracking imaging system is coaxially fixed on the rotating table of the air bearing table (1) as the system under test (5), and the three axes of the system under test The intersection point is the vertex of the rotating light cone of the high-precision moving target (4); the rotating platform is bolted to the traction line along its tangential direction and the weight (2) is suspended by winding the fixed pulley, and the tangential force is applied to the rotating platform by the weight of the weight. 2. the testing device of space-based detection and tracking imaging system according to claim 1, characterized in that: said collimator is made up of point target collimator (6) and surface target collimator (7), respectively Provides infinity targets for the detection and imaging cameras of the system under test. 3. the test device of space-based detection and tracking imaging system according to claim 1, is characterized in that: described angular velocity measuring device adopts fiber optic gyroscope (3), is installed on the rotating platform of air bearing table (1), The input axis of the fiber optic gyroscope is coaxial and parallel to the rotary axis of the air bearing table. 4. A method for testing the space-based detection and tracking imaging system using the test device as claimed in claim 1, comprising three parts of the test: (1) output torque and angular momentum test, (2) dynamic tracking accuracy and dynamic Tracking smoothness test, (3) dynamic imaging quality test; Wherein, (1) output torque and angular momentum test comprises the following steps: (1.1) Install and fix the system under test on the rotating platform of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table; (1.2) Float and level the rotating platform of the air bearing platform so that the rotating platform is parallel to the horizontal plane; (1.3) The weight with a mass of m is connected to the rotating platform through the fixed pulley, the distance between the connection point and the rotary axis of the air bearing table is I, and the weight is used to apply a tangential force T to make the rotating platform rotate; (1.4) the initial angular velocity ω of the rotation of the rotating platform measured by the fiber optic gyroscope fixed on the rotating platform, and calculate the angular acceleration α; (1.5) Calculate the total moment of inertia J of the rotating platform and the equipment under test; (1.6) Drive the moving target to rotate according to the set working parameters, the space-based detection and tracking imaging system tracks the moving target, and the angular velocity ω′ of the rotating platform measured by the fiber optic gyroscope; (1.7) Calculate the output torque when the space-based detection and tracking imaging system is working; (1.8) Calculate the output angular momentum of the space-based detection and tracking imaging system; (2) Dynamic tracking accuracy and dynamic tracking smoothness tests include the following steps: (2.1) Install and fix the system under test on the rotating platform of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table; (2.2) Float and level the rotating platform of the air bearing platform so that the rotating platform is parallel to the horizontal plane; (2.3) Drive the moving target to rotate according to the set working parameters, and the space-based detection and tracking imaging system tracks the moving target; (2.4) The dynamic tracking accuracy and dynamic tracking stability can be calculated by extracting the amount of camera miss; (3) The dynamic imaging quality test includes the following steps: (3.1) Install and fix the system under test on the rotating platform of the air bearing table, and adjust it to be coaxial with the rotating shaft of the air bearing table; (3.2) Float and level the rotating platform of the air bearing platform so that the rotating platform is parallel to the horizontal plane; (3.3) Install the target plate on the focal plane of the collimator of the moving target, drive the moving target to rotate according to the set working parameters, and the space-based detection and tracking imaging system tracks the moving target and performs imaging; (3.4) Interpret the image and determine the dynamic imaging quality of the device under test.