Non-initial attitude error analysis of SINS by error closed-loop and energy-level constructing
作者： Chuanye Tang
DOI: 10.1016/J.AST.2020.106149
关键词:
摘要: Abstract For the optimization and algorithm design of high precision strapdown inertial navigation system (SINS), a systematic fine attitude error analysis method is needed. To this end, closed-loop an energy-level are proposed to analyze non-initial estimation SINS. The constructed from basic angular velocity equation in which combined with rotation estimate form closed loop. This makes it first time realize complete (theoretically unbiased) SINS error. energy level motion expressed as series expansion under defined such coning maneuvering motion. enables us finely any existing multi-sample based on Taylor-series method. theoretical basis, establishment process instructions two methods given order paper. detailed proof reasoning Appendixes A, B, C D. Several cases simulation examples verify correctness results applicability method, provides tool for algorithm.
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