Comparison on Three Filter Methods in Self-alignment for SINS of the Carrier Craft
Fuzzy adaptive filter and H∞ filter are introduced to solve the problem of low filter performance,which comes from uncertain noise caused by seawave and high frequence vibrancy.First,basic principles of the fuzzy adaptive filter and H∞ filter are formulated.Second,state space model of self-alignment for SINS of the carrier craft is built.Finally,according to each character,a comparison on results that Kalman filter,fuzzy adaptive filter and H∞ filter are applied to alignment for SINS of the cartier craft is made.Simulation results show that although Kalman filter has definite robustness to external uncertainty noise,weak anti-jamming ability and bad filter performance make self-alignment failed.Fuzzy adaptive filter and H∞ filter have strong ability to suppress external uncertain noise and can obtain good filtering accuracy.They both can complete self-alignment.Filtering accuracy and rapidity of fuzzy adaptive filter are better than those of H∞filter,while robustness and curve smoothness of H∞ filter are stronger than those of other filters.
SINS H∞ filter Fuzzy adaptive filter Self-alignment Moored
Yong Jun Wang Jing Shuo Xu Rui Hua Song Yang Gao Ya Zhou Di
Qingdao Branch,Naval Aeronautical and Astronautical University,Qingdao,Shandong,266041,China Naval Aeronautical and Astronautical University,Yantai,Shandong,264001,China
国际会议
广州
英文
1793-1799
2012-11-16(万方平台首次上网日期,不代表论文的发表时间)