捷联惯导系统传递对准两种滤波方法比较研究  

Comparison on two filtering approaches for SINS transfer alignment

作　　者：王司[1] 邓正隆[1] 

机构地区：[1]哈尔滨工业大学控制科学与工程系

出　　处：《中国惯性技术学报》2006年第2期9-13,共5页Journal of Chinese Inertial Technology

基　　金：武器装备预研基金资助项目(514090101HT0141)

摘　　要：将H∞滤波方法用于捷联惯导系统(SINS)空中动基座传递对准,并对卡尔曼滤波和H∞滤波应用于传递对准的鲁棒效果进行了比较研究。仿真结果表明,在有色噪声和白噪声强度较小时,两种滤波方法的滤波精度差别不大,但当有色噪声和白噪声强度较大时,卡尔曼滤波精度优于H∞滤波。换言之,卡尔曼滤波对于噪声的不确定性是具有一定的鲁棒性的,并且就估计精度而言,其鲁棒性优于H∞滤波,但H∞滤波的估计速度优于卡尔曼滤波。H∞ Filtering is applied to transfer alignment of missile SINS on moving base, and the robust performance of H- Filter is compared with that of Kalman filter in transfer alignment. Simulation results show that when color noise intensity and white noise intensity are smaller, the two filters achieve almost same accuracy; and when color noise intensity and white noise intensity are bigger, Kalman filter achieves higher accuracy than H∞ filter. In other words, Kalman filter is of robust performance in respect to noise uncertainty, and Kalman filter is superior to H∞filter in terms of estimate accuracy, but H∞ filter is superior to Kalman filter in terms of estimate speed.

关 键 词：传递对准 动基座 H∞滤波 卡尔曼滤波 

分 类 号：U666.1[交通运输工程—船舶及航道工程]