Device and method for testing target tracking and pointing precision of intense laser system

The beacon laser generation module generates simulation targets and high frame rate high resolution polarization cameras to record spot position change information, calculate the angle deviation amount, and directly measure the target and aiming accuracy of the strong laser system, which solves the failure of the existing test methods to directly measure the laser light. The problem of stable retention accuracy of spots achieves efficient and reliable testing results.

CN119439132APending Publication Date: 2025-02-14CHINESE PEOPLES LIBERATION ARMY ARMY ARTILLERY & AIR DEFENSE ACAD
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Patent Information

Application Number
CN202411529831.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

The existing target and aiming accuracy testing methods of strong laser systems mainly measure the accuracy of tracking equipment, but failing to directly measure the stable residence accuracy of the laser spot on the target, which has certain limitations.

Method used

The beacon laser generation module is used to generate simulation targets, and the spatial position change information of beacon laser and strong laser spots are recorded through a high frame rate and high resolution polarization camera, and the angular deviation between the two is calculated to achieve the goal of the strong laser system. Direct measurement of aiming accuracy.

Benefits of technology

By directly measuring the stable residence accuracy of the laser spot on the target, the measurement results are guaranteed to be authentic and credible, and the following accuracy indicators of the strong laser system can be objectively evaluated, reducing the testing cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a device and a method for testing the target tracking and pointing precision of an intense laser system, belongs to the technical field of intense laser system testing, and solves the problem of how to measure the target tracking and pointing precision of the intense laser system. The intense laser system tracks a beacon laser simulation target on the diffuse reflection target plate and emits strike laser, and the spatial position change information of a beacon laser spot on the diffuse reflection target plate and a strike laser spot emitted by the intense laser system at the same moment is recorded through the high-frame-frequency high-resolution polarization camera; the target tracking and pointing precision measurement of the strong laser system is realized; the high-frame-frequency high-resolution polarization camera records the spatial position change information of the beacon laser spot and the striking laser spot in real time, so that the accurate positioning of the laser striking spot position is ensured, the authenticity and credibility of the tracking and pointing precision of the intense laser target are ensured, and the objective evaluation of the target tracking and pointing precision index of the detected intense laser system is facilitated.
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Description

Technical Field

[0001] The invention belongs to the technical field of high-power laser system testing, and relates to a high-power laser system target tracking and aiming accuracy testing device and method. Background Art

[0002] The high-power laser system has excellent performances such as fast, flexible, accurate and anti-electromagnetic interference in combating air threats. It has become the forefront of the development of low-altitude short-range interception systems and has received great attention. When a high-power laser system loaded on a carrier intercepts a moving target in the air, it can only achieve the expected laser damage effect by accurately aiming and staying on the target stably for a certain period of time. Obviously, testing the accuracy of tracking and aiming of a moving target by a high-power laser system is a basic and important task.

[0003] At present, the target tracking accuracy test of the high-power laser system is achieved by testing the accuracy of the tracking equipment of the high-power laser system. There are mainly the following solutions:

[0004] 1) Field calibration flight test. Use an aerial target equipped with a precise GPS positioning device to perform a calibration flight to measure the tracking accuracy of the strong laser system. Compare the measurement results of the strong laser system tracking equipment with the precise positioning information of the aerial target in real time to obtain the tracking accuracy of the strong laser system. 2) Indoor target test. Use a two-axis high-precision electric-controlled turntable with a target installed to measure the tracking accuracy of the indoor strong laser system. Under the control of the two-axis high-precision electric-controlled turntable, the target moves in azimuth and pitch according to the set movement rules. Compare the target position information measured by the strong laser system tracking equipment with the turntable azimuth and pitch angles in real time to obtain the tracking accuracy of the strong laser system. 3) Simulated target projection test. Generate a simulated target using a digital simulation system, project the simulated target to the tracking device of the strong laser system through a projection optical system, and compare the simulated target position information measured by the strong laser system tracking equipment with the simulated target position information generated by the digital simulation system in real time to achieve the tracking accuracy measurement of the strong laser system.

[0005] The basic principles of the above three test schemes are the same. The main difference lies in the different test target settings. They all compare the actual target azimuth with the target azimuth measured by the tracking device of the strong laser system to obtain the tracking accuracy of the strong laser system. The above schemes mainly measure the tracking accuracy of the strong laser system tracking device itself, and do not directly measure the accuracy of the laser spot emitted by the strong laser system to stay stably on the target, which has certain limitations. Summary of the invention

[0006] The technical solution of the present invention is used to solve the problem of how to measure the target tracking and aiming accuracy of a high-power laser system.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] The present invention provides a high-power laser system target tracking and aiming accuracy test device, comprising: a beacon laser generation module, a high-frame-rate and high-resolution polarization camera, a control processing computer and a diffuse reflection target plate; the beacon laser generation module comprises: a beacon light laser, a two-dimensional optical galvanometer scanning head, and a laser waveform generation control board;

[0009] The beacon light laser is used to generate a beacon laser;

[0010] The two-dimensional optical galvanometer scanning head is used to generate the motion waveform, motion speed, and acceleration parameters set by the control board according to the laser waveform of the beacon laser, and output the motion trajectory through two-dimensional scanning;

[0011] The laser waveform generation control board is used to set the motion waveform, motion speed, acceleration and other parameters of the beacon laser output, control the beacon light laser and the two-dimensional optical galvanometer scanning head, and project the generated laser simulation target onto the diffuse reflection target plate;

[0012] The high frame rate and high resolution polarization camera is used to record the spatial position change information of the beacon laser spot and the high intensity laser system laser spot on the diffuse reflection target plate at the same time;

[0013] The control processing computer is connected to the beacon laser generation module and the high frame rate and high resolution polarization camera respectively; the control processing computer synchronously controls the beacon laser generation module and the high frame rate and high resolution polarization camera to work, and obtains the beacon laser spot image emitted by the beacon laser generation module on the diffuse reflection target plate and the laser spot image of the measured strong laser system collected by the high frame rate and high resolution polarization camera;

[0014] The control processing computer is also used to compare the spatial position change information of the strong laser spot and the beacon laser spot at the same time to obtain the target tracking accuracy of the strong laser system;

[0015] The diffuse reflection target plate is used to receive the laser simulation target projected by the beacon laser generation module and the laser spot of the high-intensity laser system to be measured.

[0016] Furthermore, the working process of the device is as follows:

[0017] 1) Start the beacon laser generation module, project the beacon laser onto the diffuse reflection target plate, and generate a laser simulation target;

[0018] 2) The tracking device of the high-intensity laser system to be measured aims at the laser simulation target in a stationary state on the diffuse reflection target plate;

[0019] 3) The control processing computer controls the laser simulation target projected by the beacon laser generation module to move on the diffuse reflection target plate according to the set trajectory, and the high-intensity laser system to be measured tracks the laser simulation target in real time and emits laser to the diffuse reflection target plate;

[0020] 4) The control processing computer controls the high frame rate and high resolution polarization camera to collect and store the sequence frame images of the laser simulation target spot on the diffuse reflection target plate and the laser spot of the strong laser system;

[0021] 5) Control and process the computer to detect the spatial position change information of the laser simulation target spot and the laser spot of the high-intensity laser system;

[0022] 6) The control processing computer calculates the angle deviation between the spatial position angle change of the strong laser spot and the spatial position angle change of the laser simulation target to obtain the target tracking accuracy of the strong laser system.

[0023] The present invention also provides a testing method based on the above-mentioned high-power laser system target tracking and aiming accuracy testing device, comprising the following steps:

[0024] S1. Set a diffuse reflection target plate at the set test distance of the high-intensity laser system to be tested, and light up the boundary position calibration lamp on the diffuse reflection target plate;

[0025] S2, the control processing computer controls the high frame rate and high resolution polarization camera to collect and store the diffuse reflection target plate boundary calibration light image to calibrate the target plate boundary position;

[0026] S3, start the beacon laser generation module, generate a laser simulation target and project it to the left area of ​​the diffuse reflection target plate at a short distance in a stationary state as the target projection area;

[0027] S4. The tracking device of the high-intensity laser system to be measured aims at the laser simulation target on the diffuse reflection target plate, so that the laser spot emitted by the high-intensity laser system to be measured falls on the right area of ​​the diffuse reflection target plate as the tracking area, ensuring that the tracking track formed by the high-intensity laser spot and the motion track of the laser simulation target projected by the beacon laser generation module are respectively in the areas divided by themselves on the diffuse reflection target plate;

[0028] S5. The control processing computer controls the high frame rate and high resolution polarization camera to collect the spot image of the laser simulation target on the diffuse reflection target plate and the laser spot image of the measured strong laser system in real time, rotates the polarizer in front of the high frame rate and high resolution polarization camera lens, suppresses the background light through the polarization direction, and makes the strong laser spot image clear and unsaturated;

[0029] S6. The control processing computer sets the motion waveform, motion speed, and acceleration parameters of the beacon laser according to the test requirements, generates a cyclic scanning output of the laser simulation target motion trajectory and projects it onto the target projection area on the diffuse reflection target plate;

[0030] S7, the high intensity laser system to be measured tracks in real time the laser simulation target projected onto the diffuse reflection target plate in real time in step S3, and emits laser to the aiming area of ​​the diffuse reflection target plate;

[0031] S8, the control processing computer controls the high frame rate and high resolution polarization camera to store the sequence frame images of the laser simulation target spot on the diffuse reflection target plate and the laser spot of the measured strong laser system;

[0032] S9, the control processing computer detects the spatial position change information of the laser simulation target spot and the laser spot of the measured high-intensity laser system;

[0033] S10, the control processing computer calculates the angle deviation between the spatial position angle change of the strong laser spot and the spatial position angle change of the laser simulation target, and obtains the target tracking accuracy of the measured strong laser system under a certain set target motion trajectory condition;

[0034] S11, repeating steps S6 to S10, obtaining the target tracking accuracy of the high-intensity laser system under different target motion trajectory settings, and then obtaining the accuracy of the high-intensity laser system under statistics.

[0035] Furthermore, the method for detecting the spatial position change information of the laser simulation target spot and the laser spot of the measured high-intensity laser system described in step S9 is specifically as follows: based on the calibration result of the boundary position of the diffuse reflection target plate, a mapping relationship between the pixel position of the center of the laser spot in the image and the actual spatial position of the center of the laser spot on the target plate is established to obtain the spatial position of the laser simulation target trajectory and the spatial position of the laser tracking trajectory respectively.

[0036] Furthermore, the method for calculating the angle deviation between the spatial position angle change amount of the strong laser spot and the spatial position angle change amount of the laser simulation target described in step S10 to obtain the target tracking accuracy of the measured strong laser system under a certain set target motion trajectory condition is as follows:

[0037] Taking the starting point of the laser tracking trajectory as the reference point, the theoretical value of the laser tracking trajectory point is calculated in sequence. The calculation formula is as follows:

[0038]

[0039] Among them, X Fi and Y Fi They represent the X and Y coordinate theoretical values ​​of the spatial position of the i-th point in the laser tracking trajectory, respectively. T0 and Y T0 They represent the X and Y coordinate measurements of the starting point in the laser tracking trajectory. Bi and Y Bi They represent the X and Y coordinate measurements of the spatial position of the i-th point in the beacon laser simulation target trajectory, respectively. B0 and Y B0 They represent the X and Y coordinate measurements of the spatial position of the starting point in the beacon laser simulation target trajectory;

[0040] Calculate the angle deviation σ between the measured value and the theoretical value of the laser tracking trajectory point θi , the calculation formula is as follows:

[0041]

[0042] Among them, X Ti and Y Ti They represent the X and Y coordinate measurements of the spatial position of the ith point in the laser tracking trajectory, respectively, and D represents the distance from the measured high-intensity laser system to the diffuse reflection target plate;

[0043] Calculate the target tracking accuracy σ of the measured high-intensity laser system, and the calculation formula is as follows:

[0044]

[0045] Where n represents the number of laser tracking trajectory points.

[0046] The present invention also provides an electronic device, comprising a memory and a processor, wherein the memory is used to store a program that supports the processor to execute the above-mentioned test method, and the processor is configured to execute the program stored in the memory.

[0047] The present invention also provides a storage medium, on which a computer program is stored, and when the computer program is run by a processor, the steps of the above-mentioned test method are executed.

[0048] The advantages of the present invention are:

[0049] The present invention is based on the fact that a beacon laser generates a simulated target and irradiates it on a diffuse reflection target plate, a high-power laser system tracks the beacon laser simulated target on the diffuse reflection target plate and emits a striking laser, and a high-frame-rate and high-resolution polarization camera records the spatial position change information of the beacon laser spot on the diffuse reflection target plate and the striking laser spot emitted by the high-power laser system at the same time, so as to realize the target tracking and aiming accuracy measurement of the high-power laser system; the beacon laser generates a simulated target, the measured high-power laser system tracks the beacon laser simulated target in real time, and the high-frame-rate and high-resolution polarization camera records the spatial position change information of the beacon laser spot and the striking laser spot in real time, which not only ensures the accurate positioning of the laser striking spot position, but also ensures the authenticity and reliability of the high-power laser target tracking and aiming accuracy, and is conducive to objectively evaluating the target tracking and aiming accuracy index of the measured high-power laser system. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a structural diagram of a high-power laser system target tracking and aiming accuracy measurement device according to the first embodiment of the present invention;

[0051] Figure 2 This is a working flow chart of a device for measuring target tracking and aiming accuracy of a high-power laser system according to the first embodiment of the present invention;

[0052] Figure 3 This is a flow chart of a method for measuring target tracking and aiming accuracy of a high-power laser system according to a second embodiment of the present invention;

[0053] Figure 4 This is a lighting effect diagram of the boundary position calibration lamp of a diffuse reflection target plate in a method for measuring target tracking and aiming accuracy of a high-power laser system according to the second embodiment of the present invention;

[0054] Figure 5 This is a diagram showing the effect of a laser simulation target and a strong laser spot on a diffuse reflection target plate under static conditions in a method for measuring target tracking and aiming accuracy of a strong laser system in the second embodiment of the present invention;

[0055] Figure 6 This is an effect diagram of the detection of the laser simulation target and the high-intensity laser motion trajectory image on the diffuse reflection target plate of a high-intensity laser system target tracking and aiming accuracy measurement method in embodiment 2 of the present invention. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0058] Embodiment 1

[0059] like Figure 1 As shown, the target tracking and aiming accuracy test device of the high-power laser system of the embodiment of the present invention includes: a beacon laser generation module, a high frame rate and high resolution polarization camera, a control processing computer and a diffuse reflection target plate; the beacon laser generation module includes: a beacon light laser, a two-dimensional optical galvanometer scanning head, and a laser waveform generation control board;

[0060] The beacon light laser is used to generate beacon laser, and the YAG laser is selected;

[0061] The two-dimensional optical galvanometer scanning head is used to generate the motion waveform, motion speed, acceleration and other parameters set by the control board according to the laser waveform of the beacon laser, and output the motion trajectory through two-dimensional scanning;

[0062] The laser waveform generation control board is used to set the motion waveform, motion speed, acceleration and other parameters of the beacon laser output, control the beacon light laser and the two-dimensional optical galvanometer scanning head, and project the generated laser simulation target onto the diffuse reflection target plate;

[0063] The high frame rate and high resolution polarization camera is used to record the spatial position change information of the beacon laser spot and the high intensity laser system laser spot on the diffuse reflection target plate at the same time;

[0064] The control processing computer is connected to the beacon laser generation module and the high frame rate and high resolution polarization camera respectively; the control processing computer synchronously controls the beacon laser generation module and the high frame rate and high resolution polarization camera to work, and obtains the beacon laser spot image emitted by the beacon laser generation module on the diffuse reflection target plate and the laser spot image of the measured strong laser system collected by the high frame rate and high resolution polarization camera;

[0065] The control processing computer is also used to compare the spatial position change information of the strong laser spot and the beacon laser spot at the same time, and calculate the target tracking accuracy of the strong laser system;

[0066] The diffuse reflection target plate is used to receive the laser simulation target projected by the beacon laser generation module and the laser spot of the high-intensity laser system to be measured.

[0067] like Figure 2 As shown, the working process of the high-power laser system target tracking and aiming accuracy testing device according to the embodiment of the present invention is as follows:

[0068] 1) Start the beacon laser generation module, project the beacon laser onto the diffuse reflection target plate, and generate a laser simulation target;

[0069] 2) The tracking device of the high-intensity laser system to be measured aims at the laser simulation target in a stationary state on the diffuse reflection target plate;

[0070] 3) The control processing computer controls the laser simulation target projected by the beacon laser generation module to move on the diffuse reflection target plate according to the set trajectory, and the high-intensity laser system to be measured tracks the laser simulation target in real time and emits laser to the diffuse reflection target plate;

[0071] 4) The control processing computer controls the high frame rate and high resolution polarization camera to collect and store the sequence frame images of the laser simulation target spot on the diffuse reflection target plate and the laser spot of the strong laser system;

[0072] 5) Control and process the computer to detect the spatial position change information of the laser simulation target spot and the laser spot of the high-intensity laser system;

[0073] 6) The control processing computer calculates the angle deviation between the spatial position angle change of the strong laser spot and the spatial position angle change of the laser simulation target to obtain the target tracking accuracy of the strong laser system.

[0074] The invention ensures the authenticity of the measurement result by directly measuring the accuracy of the high-power laser system; the test data is independent of the high-power laser system to be measured, and the measurement result does not need to be obtained through the data generated by the tracking and aiming device of the high-power laser system to be measured, which is conducive to objectively evaluating the tracking and aiming accuracy index of the high-power laser system to be measured; the beacon laser generation module generates a laser simulation target, and the target's motion waveform, motion speed, acceleration and other parameters can be set according to test needs, and the high-speed target motion trajectory generation can be flexibly realized, thereby reducing the test cost and having a simple structure; the high-frame-rate and high-resolution polarization camera stores the sequence frame images of the laser simulation target spot on the diffuse reflection target plate and the laser spot of the high-power laser system to be measured in real time, which can ensure that the spatial positions of the laser simulation target and the laser spot of the high-power laser system to be measured in the same frame image are at the same time, thereby ensuring the temporal and spatial consistency of the target tracking and aiming accuracy test data of the high-power laser system to be measured; and is conducive to improving the measurement accuracy of the laser pointing position of the high-power laser system to be measured.

[0075] Embodiment 2

[0076] like Figure 3 As shown, the target tracking and aiming accuracy test method of the high-power laser system according to the embodiment of the present invention comprises the following steps:

[0077] S1, such as Figure 4 As shown, a diffuse reflection target plate is set at a set test distance of the high-intensity laser system to be tested, and a boundary position calibration lamp on the diffuse reflection target plate is lit;

[0078] S2, the control processing computer controls the high frame rate and high resolution polarization camera to collect and store the diffuse reflection target plate boundary calibration light image to calibrate the target plate boundary position;

[0079] S3, start the beacon laser generation module, generate a laser simulation target and project it to the left area of ​​the diffuse reflection target plate at a short distance in a stationary state as the target projection area;

[0080] S4. References Figure 5 The tracking device of the high-intensity laser system to be measured aims at the laser simulation target on the diffuse reflection target plate, so that the laser spot emitted by the high-intensity laser system to be measured falls on the right area of ​​the diffuse reflection target plate as the tracking area, ensuring that the tracking track formed by the high-intensity laser spot and the motion track of the laser simulation target projected by the beacon laser generation module are respectively in the areas divided by themselves on the diffuse reflection target plate, so as to facilitate image detection, analysis and processing and angle transformation parameter calculation;

[0081] S5. The control processing computer controls the high frame rate and high resolution polarization camera to collect the spot image of the laser simulation target on the diffuse reflection target plate and the laser spot image of the measured strong laser system in real time, rotates the polarizer in front of the high frame rate and high resolution polarization camera lens, suppresses the background light through the polarization direction, and makes the strong laser spot image clear and unsaturated;

[0082] S6. The control processing computer sets the motion waveform, motion speed, and acceleration parameters of the beacon laser according to the test requirements, generates a cyclic scanning output of the laser simulation target motion trajectory and projects it onto the target projection area on the diffuse reflection target plate;

[0083] S7, the high intensity laser system to be measured tracks in real time the laser simulation target projected onto the diffuse reflection target plate in real time in step S3, and emits laser to the aiming area of ​​the diffuse reflection target plate;

[0084] S8, the control processing computer controls the high frame rate and high resolution polarization camera to store the sequence frame images of the laser simulation target spot on the diffuse reflection target plate and the laser spot of the measured strong laser system;

[0085] S9, the control processing computer detects the spatial position change information of the laser simulation target spot and the laser spot of the measured strong laser system; the details are as follows:

[0086] According to the calibration results of the boundary position of the S2 diffuse reflection target plate, the mapping relationship between the pixel position of the laser spot center in the image and the actual spatial position of the laser spot center on the target plate is established, and the spatial position of the laser simulation target trajectory and the spatial position of the laser tracking trajectory are obtained respectively.

[0087] S10, the control processing computer calculates the angle deviation between the spatial position angle change of the strong laser spot and the spatial position angle change of the laser simulation target, and obtains the target tracking accuracy of the measured strong laser system under a certain set target motion trajectory condition; the details are as follows:

[0088] like Figure 6 As shown in the figure, the left area is the beacon laser simulation target trajectory, and the right area is the laser tracking trajectory. Taking the starting point of the laser tracking trajectory as the reference point, the theoretical value of the laser tracking trajectory point is calculated in sequence. The calculation formula is as follows:

[0089]

[0090] Among them, X Fi and Y Fi They represent the X and Y coordinate theoretical values ​​of the spatial position of the i-th point in the laser tracking trajectory, respectively. T0 and Y T0 They represent the X and Y coordinate measurements of the starting point in the laser tracking trajectory. Bi and Y Bi They represent the X and Y coordinate measurements of the spatial position of the i-th point in the beacon laser simulation target trajectory, respectively. B0 and Y B0 They represent the X and Y coordinate measurements of the spatial position of the starting point in the beacon laser simulation target trajectory;

[0091] Calculate the angle deviation σ between the measured value and the theoretical value of the laser tracking trajectory point θi , the calculation formula is as follows:

[0092]

[0093] Among them, X Ti and Y Ti They represent the X and Y coordinate measurements of the spatial position of the ith point in the laser tracking trajectory, respectively, and D represents the distance from the measured high-intensity laser system to the diffuse reflection target plate;

[0094] Calculate the target tracking accuracy σ of the measured high-intensity laser system, and the calculation formula is as follows:

[0095]

[0096] Where n represents the number of laser tracking trajectory points.

[0097] S11, repeat S6 to S10 to obtain the target tracking accuracy of the high-intensity laser system under different target motion trajectory settings, and then obtain the accuracy of the high-intensity laser system under the test by statistics.

[0098] Embodiment 3

[0099] An electronic device includes a memory and a processor, wherein the memory is used to store a program that supports the processor to execute the high-power laser system target tracking and aiming accuracy test method in embodiment 2, and the processor is configured to execute the program stored in the memory.

[0100] Embodiment 4

[0101] A storage medium stores a computer program, which, when executed by a processor, executes the steps of the high-power laser system target tracking and aiming accuracy test method in embodiment 2.

[0102] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-power laser system target tracking accuracy test device, characterized in that: include: Beacon laser generation module, high frame rate and high resolution polarization camera, control and processing computer and diffuse reflection target plate; The beacon laser generation module includes: a beacon light laser, a two-dimensional optical galvanometer scanning head, and a laser waveform generation control board; The beacon light laser is used to generate a beacon laser; The two-dimensional optical galvanometer scanning head is used to generate the motion waveform, motion speed, and acceleration parameters set by the control board according to the laser waveform of the beacon laser, and output the motion trajectory through two-dimensional scanning; The laser waveform generation control board is used to set the motion waveform, motion speed, acceleration and other parameters of the beacon laser output, control the beacon light laser and the two-dimensional optical galvanometer scanning head, and project the generated laser simulation target onto the diffuse reflection target plate; The high frame rate and high resolution polarization camera is used to record the spatial position change information of the beacon laser spot and the high intensity laser system laser spot on the diffuse reflection target plate at the same time; The control processing computer is connected to the beacon laser generation module and the high frame rate and high resolution polarization camera respectively; the control processing computer synchronously controls the beacon laser generation module and the high frame rate and high resolution polarization camera to work, and obtains the beacon laser spot image emitted by the beacon laser generation module on the diffuse reflection target plate and the laser spot image of the measured strong laser system collected by the high frame rate and high resolution polarization camera; The control processing computer is also used to compare the spatial position change information of the strong laser spot and the beacon laser spot at the same time to obtain the target tracking accuracy of the strong laser system; The diffuse reflection target plate is used to receive the laser simulation target projected by the beacon laser generation module and the laser spot of the high-intensity laser system to be measured.

2. The high-power laser system target tracking and aiming accuracy test device according to claim 1 is characterized in that: The working process of the device is as follows: 1) Start the beacon laser generation module, project the beacon laser onto the diffuse reflection target plate, and generate a laser simulation target; 2) The tracking device of the high-intensity laser system to be measured aims at the laser simulation target in a stationary state on the diffuse reflection target plate; 3) The control processing computer controls the laser simulation target projected by the beacon laser generation module to move on the diffuse reflection target plate according to the set trajectory, and the high-intensity laser system to be measured tracks the laser simulation target in real time and emits laser to the diffuse reflection target plate; 4) The control processing computer controls the high frame rate and high resolution polarization camera to collect and store the sequence frame images of the laser simulation target spot on the diffuse reflection target plate and the laser spot of the strong laser system; 5) Control and process the computer to detect the spatial position change information of the laser simulation target spot and the laser spot of the high-intensity laser system; 6) The control processing computer calculates the angle deviation between the spatial position angle change of the strong laser spot and the spatial position angle change of the laser simulation target to obtain the target tracking accuracy of the strong laser system.

3. A test method for a high-power laser system target tracking and aiming accuracy test device according to any one of claims 1 to 2, characterized in that: The following steps are involved: S1. Set a diffuse reflection target plate at the set test distance of the high-intensity laser system to be tested, and light up the boundary position calibration lamp on the diffuse reflection target plate; S2, the control processing computer controls the high frame rate and high resolution polarization camera to collect and store the diffuse reflection target plate boundary calibration light image to calibrate the target plate boundary position; S3, start the beacon laser generation module, generate a laser simulation target and project it to the left area of ​​the diffuse reflection target plate at a short distance in a stationary state as the target projection area; S4. The tracking device of the high-intensity laser system to be measured aims at the laser simulation target on the diffuse reflection target plate, so that the laser spot emitted by the high-intensity laser system to be measured falls on the right area of ​​the diffuse reflection target plate as the tracking area, ensuring that the tracking track formed by the high-intensity laser spot and the motion track of the laser simulation target projected by the beacon laser generation module are respectively in the areas divided by themselves on the diffuse reflection target plate; S5. The control processing computer controls the high frame rate and high resolution polarization camera to collect the spot image of the laser simulation target on the diffuse reflection target plate and the laser spot image of the measured strong laser system in real time, rotates the polarizer in front of the high frame rate and high resolution polarization camera lens, suppresses the background light through the polarization direction, and makes the strong laser spot image clear and unsaturated; S6. The control processing computer sets the motion waveform, motion speed, and acceleration parameters of the beacon laser according to the test requirements, generates a cyclic scanning output of the laser simulation target motion trajectory and projects it onto the target projection area on the diffuse reflection target plate; S7, the high intensity laser system to be measured tracks in real time the laser simulation target projected onto the diffuse reflection target plate in real time in step S3, and emits laser to the aiming area of ​​the diffuse reflection target plate; S8, the control processing computer controls the high frame rate and high resolution polarization camera to store the sequence frame images of the laser simulation target spot on the diffuse reflection target plate and the laser spot of the measured strong laser system; S9, the control processing computer detects the spatial position change information of the laser simulation target spot and the laser spot of the measured high-intensity laser system; S10, the control processing computer calculates the angle deviation between the spatial position angle change of the strong laser spot and the spatial position angle change of the laser simulation target, and obtains the target tracking accuracy of the measured strong laser system under a certain set target motion trajectory condition; S11, repeating steps S6 to S10, obtaining the target tracking accuracy of the high-intensity laser system under different target motion trajectory settings, and then obtaining the accuracy of the high-intensity laser system under statistics.

4. The testing method according to claim 3, characterized in that: The method for detecting the spatial position change information of the laser simulation target spot and the laser spot of the measured high-intensity laser system described in step S9 is specifically: according to the calibration result of the boundary position of the diffuse reflection target plate, a mapping relationship between the pixel position of the center of the laser spot in the image and the actual spatial position of the center of the laser spot on the target plate is established, and the spatial position of the laser simulation target trajectory and the spatial position of the laser tracking trajectory are obtained respectively.

5. The testing method according to claim 3, characterized in that: The method for calculating the angle deviation between the spatial position angle change amount of the strong laser spot and the spatial position angle change amount of the laser simulation target described in step S10 to obtain the target tracking accuracy of the measured strong laser system under a certain set target motion trajectory condition is as follows: Taking the starting point of the laser tracking trajectory as the reference point, the theoretical value of the laser tracking trajectory point is calculated in sequence. The calculation formula is as follows: Among them, X Fi and Y Fi They represent the X and Y coordinate theoretical values ​​of the spatial position of the i-th point in the laser tracking trajectory, respectively. T0 and Y T0 They represent the X and Y coordinate measurements of the starting point in the laser tracking trajectory. Bi and Y Bi They represent the X and Y coordinate measurements of the spatial position of the i-th point in the beacon laser simulation target trajectory, respectively. B0 and Y B0 They represent the X and Y coordinate measurements of the spatial position of the starting point in the beacon laser simulation target trajectory; Calculate the angle deviation σ between the measured value and the theoretical value of the laser tracking trajectory point θi , the calculation formula is as follows: Among them, X Ti and Y Ti They represent the X and Y coordinate measurements of the spatial position of the ith point in the laser tracking trajectory, respectively, and D represents the distance from the measured high-intensity laser system to the diffuse reflection target plate; Calculate the target tracking accuracy σ of the measured high-intensity laser system, and the calculation formula is as follows: Where n represents the number of laser tracking trajectory points.

6. An electronic device, comprising a memory and a processor, characterized in that: The memory is used to store a program that supports a processor to execute the testing method according to any one of claims 3 to 5, and the processor is configured to execute the program stored in the memory.

7. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the testing method according to any one of claims 3 to 5 are executed.

Citation Information

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