Roll angle optical test simulation and precision evaluation method

By constructing a closed-loop verification path and superimposing interpretation errors, the problem of the inability to quantitatively evaluate the accuracy in roll angle optical testing was solved, realizing the accuracy evaluation of roll angle measurement and quantitative support for experimental schemes.

CN122408694APending Publication Date: 2026-07-17CHINESE PEOPLES LIBERATION ARMY UNIT 63875
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINESE PEOPLES LIBERATION ARMY UNIT 63875
Filing Date
2026-04-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The measurement accuracy of roll angle optical testing in existing technologies cannot be pre-calculated or post-tested quantitatively evaluated, resulting in a lack of quantitative basis for test scheme design and a lack of theoretical support for data analysis.

Method used

By constructing a closed-loop verification path from object space to image space and back to object space, the correctness of the roll angle calculation algorithm is verified by projecting and reconstructing the target key line vector. The interpretation error is superimposed in the closed-loop path to simulate the error propagation process under actual test conditions, thereby realizing a quantitative evaluation of the roll angle measurement accuracy.

Benefits of technology

It provides a theoretical basis for the design of the test scheme, the deduction of the test process, and the analysis of measurement data for roll angle testing, and provides a quantitative evaluation of the roll angle measurement accuracy, ensuring the reliability and accuracy of the measurement results.

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Abstract

本申请公开一种滚转角光学测试仿真模拟及精度评估方法,选取目标本体坐标系下的特征直线矢量构设表征滚转角变化量的特征平面,基于特征平面滚转前后夹角变化实现瞬态滚转角测量;结合实测剖面下目标位姿、站点布设、投影映射过程模拟以及所选直线空间矢量重构环节,实现求解滚转角与理论值比对以验证3D‑2D‑3D环路算法正确性;在此基础上,叠加判读误差后再次投影、合成、求解滚转角,并与理论值比对得到量化评估误差。该方法实现了滚转角光学测试的闭环正确性验证及滚转角瞬态测试精度量化评估,为试验策划、方案推演和数据处理提供理论支撑。
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