CAJ | 학술논문

在捷联惯导在线标定过程中，由于主惯导的解算和传输延迟，子惯导解算信息与进行匹配的基准信息不能完全同步，有些情况下时间延迟较大，且对标定精度的影响很大。首先介绍了一种消除时间延迟的方法，而后重点仿真研究了该方法中同步误差△t对捷联惯导在线标定精度的影响，仿真结果表明忽略会△t导致个别参数轻微发散，故为了进一步提高标定精度，在标定过程中考虑同步误差△t是必要的。
재첩련관도재선표정과정중，유우주관도적해산화전수연지，자관도해산신식여진행필배적기준신식불능완전동보，유사정황하시간연지교대，차대표정정도적영향흔대。수선개소료일충소제시간연지적방법，이후중점방진연구료해방법중동보오차△t대첩련관도재선표정정도적영향，방진결과표명홀략회△t도치개별삼수경미발산，고위료진일보제고표정정도，재표정과정중고필동보오차△t시필요적。
Due to the solver and propagation delay in MINS,and the solver in SINS can not be fully synchronized with the matching reference information,in some cases the time delay can be larger, and have a great influence on the calibration accuracy,using the SINS online calibration. Firstly this paper introduces a method to eliminate the time delay,and then focus on the simulation of the influence on the SINS online calibration accuracy by the synchronization error △t,the simulation results show that ignores △t will result in a individual parameters divergence slightly,therefore,in order to improve the calibration accuracy,consider the synchronization error △t in the calibration is necessary.