System and method for detecting tracking performance of optical measurement equipment of movable platform

Abstract

Disclosed are a system and a method for detecting tracking performance of optical measurement equipment of a movable platform. The system is characterized in that a data processing server sends motion data of a detection platform to a controller, the controller converts and processes the received motion data of the detection platform and then achieves motion control over the detection platform, the detection platform comprises a multi-degree-of-freedom series mechanical device, a multi-degree-of-freedom parallel mechanical device and a parallel light tube, and the optical measurement equipment automatically tracks a simulated optical target, obtains image information and tracking miss distance of the simulated optical target, and sends the image information and the tracking miss distance to the data processing server for subsequent tracking precision calculation. Due to the fact that the multi-degree-of-freedom parallel mechanical device has the advantages of being large in rigidity, high in precision, high in load self-weight ratio and the like, simulation of the shaking posture of the movable platform is achieved, and due to the fact that the multi-degree-of-freedom series mechanical device achieves simulation of an optical target in a multi-degree-of-freedom motion state, the tracking precision of the optical measurement equipment of the movable platform can be more effectively detected.

Description

technical field [0001] The invention relates to the technical field of performance detection of optical measurement equipment, in particular to a tracking performance detection system and method for optical measurement equipment of a moving platform. Background technique [0002] The development and production capacity of optical measurement equipment is an important symbol to measure a country's technical level in the field of optical precision equipment. The application fields of some important optical measurement equipment involve national defense security, so there are still related technical blockades, especially related to the performance of optical measurement equipment Detection related equipment and methods are rarely reported. [0003] With the continuous development of optical measurement technology and the needs of shooting ranges, optical measurement equipment with fixed bases can no longer meet the requirements of modern shooting ranges. The requirements for mo...

AI Technical Summary

Problems solved by technology

[0004] The tracking accuracy detection of the existing optical measurement equipment on the moving platform only detects and appraises the equipment under the condition of a static base. Due to the limited detection conditions, the detection requirements for tracking performance indicators are greatly reduced compared with the actual indicators under the moving platform, and cannot be completed. The detection and assessment of tracking performance in a real environment leads to the delivery of equipment with legacy problems. In the test task, once it is found that the equipment tracking performance indicators do not meet the requirements, it will be difficult to rectify the equipment and the cycle and development costs will increase significantly.

[0005] At this stage, the traditional ground-based detection device is used for the tracking performance detection of the optical measurement equipment of the moving platform. Since the ground-based detection device cannot truly simulate the motion characteristics of the moving platform, it is impossible to test the tracking performance in the actual application environment during the development stage of the optical measurement equipment.

In addition, ground-based detection devices generally use single-axis optical dynamic targets, which are single-degree-of-freedom rotating targets in space. When working, only the speed feedback loop controls the rotation speed of the rotating shaft to simulate a maneuvering target with an approximate sinusoidal trajectory. There is a large difference in the motion characteristics between the simulated target and the real maneuvering target, which is mainly manifested in the fact that the trajectory of the simulated target is relatively simple, and the simulated target whose velocity and acceleration meet the requirements of the index cannot be generated at the same time, and the motion equation of the simulated target is in azimuth and The component in the pitch direction has a higher derivative

Although the number of degrees of freedom to detect the target has been increased to 3, there are still position blind spots in the workspace, and the target will have the problem of motion singularity during the motion process

Therefore, the current ground-based detection device is used to detect the tracking performance of the optical measurement equipment of the moving platform, and the tracking performance evaluation of the optical measurement equipment of the moving platform is not objective and accurate enough.

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