针对动态导航卡尔曼(Kalman)滤波的异常扰动影响问题,根据观测量中的粗差对状态向量滤波值的影响规律,引入了双因子算法,导出基于预报残差的抗差卡尔曼滤波模型,该模型具有良好的抗差性,利用实测数据加模拟粗差进行验证,结果表明:抗差卡尔曼滤波可以很好的控制状态对滤波估值的影响,精度相对于标准卡尔曼滤波有明显的提高。%Basing on the rules that the outliers in the observation influence the state vectors, a robust Kalman filtering is applied in dynamic navigation to control the influences of outlying movement disturbances . In this paper, the bifactors were given to const
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