... 权矩阵weight matrix 权逆阵Inverse of weight matrix 方差一协方差阵（又称“积差阵”）variance —covarlance matrix ...
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Inverse e of weight matrix 权逆阵
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The weight matrix is replaced by using weight coefficient, and avoids calculating inverse matrix of the error variance matrix.
用计算加权系数的方法代替了原来的计算加权矩阵，从而避免了求解滤波误差方差阵的逆矩阵。
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