带遗忘因子的H_∞滤波在机载SAR运补系统中的应用

On H∞ Filtering with Forgetting Factor for Airborne SAR Motion Compensation System

针对机载SAR运补系统中使用的DGPS/SINS组合系统Kalman滤波器所遇到的发散问题,提出了带遗忘因子的H∞滤波新方法。通过仿真计算表明:与常规间接反馈校正Kalman滤波器相比,这种方法大大提高了组合导航系统的稳定性和跟踪性。

In view of the divergence of Kalman filter of integrated DGPS/SINS of airborne Synthetic Aperture Radar (SAR) motion compensation system, a new method on H∞ filtering with forgetting factor is presented. The results of simulation show that the method can improve the stability and tracking performance of integrated navigation system.