火力与指挥控制
火力與指揮控製
화력여지휘공제
FIRE CONTROL & COMMAND CONTROL
2014年
3期
4-7
,共4页
抗野值%Sage-Husa滤波%组合导航%新息
抗野值%Sage-Husa濾波%組閤導航%新息
항야치%Sage-Husa려파%조합도항%신식
fault-tolerant outlier%Sage-Husa filtering%integrated navigation%innovation
针对组合导航中经常出现的卫星信号野值和滤波精度不高的问题，提出了利用Sage-Husa和新息正交性来消除卫星信号野值及抑制滤波器的发散，从而提高导航的精度和稳定性。首先，用改进的新息Sage-Husa卡尔曼滤波器对组合导航系统的测量信号进行滤波处理，其次，引入抗野值判断函数对测量信号进行判断，剔除卫星信号测量过程中的野值。通过跑车试验将新息Sage-Husa滤波与经典的卡尔曼滤波和Sage-Husa滤波的效果进行对比，结果表明改进的滤波算法能够有效地去除卫星野值、提高导航精度。
針對組閤導航中經常齣現的衛星信號野值和濾波精度不高的問題，提齣瞭利用Sage-Husa和新息正交性來消除衛星信號野值及抑製濾波器的髮散，從而提高導航的精度和穩定性。首先，用改進的新息Sage-Husa卡爾曼濾波器對組閤導航繫統的測量信號進行濾波處理，其次，引入抗野值判斷函數對測量信號進行判斷，剔除衛星信號測量過程中的野值。通過跑車試驗將新息Sage-Husa濾波與經典的卡爾曼濾波和Sage-Husa濾波的效果進行對比，結果錶明改進的濾波算法能夠有效地去除衛星野值、提高導航精度。
침대조합도항중경상출현적위성신호야치화려파정도불고적문제，제출료이용Sage-Husa화신식정교성래소제위성신호야치급억제려파기적발산，종이제고도항적정도화은정성。수선，용개진적신식Sage-Husa잡이만려파기대조합도항계통적측량신호진행려파처리，기차，인입항야치판단함수대측량신호진행판단，척제위성신호측량과정중적야치。통과포차시험장신식Sage-Husa려파여경전적잡이만려파화Sage-Husa려파적효과진행대비，결과표명개진적려파산법능구유효지거제위성야치、제고도항정도。
According to the problem of satellite signal outliers and filtering inaccuracy in integrated navigation area,this paper proposes usage of Sage-Husa filtering and innovation orthogonal to eliminate the impact of outliers and suppress filter divergence. Firstly,integrated navigation system measurement signal is filtered with innovation Sage-Husa Kalman filter. Secondly,an anti-outliers function is used to judge measured signal,excluding satellite signal measurement signal outliers. Contrasted innovation Sage-Husa filter car test result with classic Kalman filter and Sage-Husa filter,the results show that improved Sage-Husa filter can eliminate satellite signal measurement outliers and improve navigation accuracy.
