【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。更多还原

【Abstract】 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.更多还原