H_∞鲁棒控制在INS系统中的实现

The Realization of H_∞ Robust Control in INS

船用惯性导航系统(INS)在动态对准过程中,存在对准时间和对准精度之间的矛盾,如何进行折衷设计是动态对准过程中的一项关键技术.该文结合某船用惯导系统的实际需要,对船用惯导系统进行了H∞鲁棒控制方案的分析,并进行了实验仿真,从仿真结果可知,该方案能有效抑制舰船机动性带来的不确定性干扰和噪声,有利于提高系统的鲁棒性、快速性,能较好的满足动态对准的要求.

During dynamic alignment of INS,there is a contradictory between precision and stable time, how to carry on the compromise design is a key technology in the dynamic alignment process. To improve alignment precision and shorten stable tine,n new H∞ control method is provided in this paper. Theoretic analysis and simulation results show that the method is efficient to inprove INS alignment precision and shorten stable time.