现代电子技术2017，Vol.40Issue(17)：1-6,6.DOI:10.16652/j.issn.1004-373x.2017.17.001
弹载环境时间延迟对传递对准影响及估计方法
Effect of time delay on transfer alignment in missile-borne environment and its estimation method
摘要
Abstract
The improvement of alignment performance is restrained by time delay of reference information in the transfer alignment process of missile-borne inertial measurement unit. On the basis of the commonly-used velocity/attitude matching mode,the observation equation including time delay model was established,and a closed-loop filtering estimation method for time delay is proposed. The effects of time delay on error estimation of inertial device,matching information accuracy and align-ment accuracy are analyzed respectively. The simulation results show that the time delay can induce the oscillation of alignment error,device zero offset,and biased estimation of scale error;the closed-loop filtering method can estimate the error of time delay accurately,and restrain the effect of time delay on error estimation accuracy of inertial device and transfer alignment effectively.关键词
时间延迟/传递对准/姿态匹配/卡尔曼滤波Key words
time delay/transfer alignment/attitude matching/Kalman filtering分类
信息技术与安全科学引用本文复制引用
芦佳振,罗秋伟,谢莉莉..弹载环境时间延迟对传递对准影响及估计方法[J].现代电子技术,2017,40(17):1-6,6.基金项目
国家重点基础研究发展计划(973计划) （973计划）
