在已有的限定记忆卡尔曼滤波器的基础上 ,将确定性先验信息作为控制项加以应用 ,推导出了完整的限定记忆卡尔曼滤波公式 ,从而在记忆长度确定的情况下 ,有效地减小了模型不准的误差 ,降低了滤波总误差。仿真同样表明了该方法的有效性

Basing on a limited memory Kalman filter, a exact equation with control term is clerived in the paper. Determined information is used as control term. The method with fixed memory length reduces model error effectively and improves filtering accuracy. Simulation also demonstrates the validity of the method. [

TN955