针对含多惯组制导弹箭的长期整弹贮存期检测问题,提出了基于先验信息比对的快速检测方案。该方案建立了光纤惯组检测适用误差模型,在弹箭内各惯组相对姿态不变的前提下,以历史检测姿态角作为先验信息,通过惯性器件输出直接计算当前惯组相对姿态角,并结合姿态矩阵正交化特性进行比对。通过该方法可检测出弹箭内各惯组器件性能是否达标,缩短了检测时间,简化了检测流程。理论分析和仿真结果验证了该方案的可行性。
Abstract
Considering the performance detection of the whole missile containing several fiber SIMUs in long-term storage period, the rapid detection method based on prior information is put forward. In this method, simplified error model of fiber SIMU is built. Under the premise that relative attitude of each inertia in missile unchanged, the historical detection attitude is regarded as priori information, current relative attitude of FOG SINS is calculated directly by the output of inertia devices, compared with the historic detection information. Performance of each inertia device in missile can be detected by this method, which can simplify the testing process, shorten the detection flow. The method is feasible by the results.
关键词
光纤捷联惯组 /
误差模型 /
先验信息 /
相对姿态 /
快速检测
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Key words
fiber SIMU /
error model /
priori information /
relative attitude /
detection
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中图分类号：
U666.1
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