CAJ | 학술논문

将抗差估计的思想融入到二次曲面模型粗差探测的算法中，设计出对模型误差特别是粗差具有抵抗能力的粗差探测算法。稳健初值的选权迭代法即为抗差估计的一种，首先是通过线性规划的单纯形解法来计算观测值的残差，然后再根据残差和有关的参数，按所选择的权函数，计算每个观测值的权，经过迭代计算求得观测值的残差。通过实例证明，具有稳健初值的选权迭代法具有较强的稳健性和粗差探测能力。
장항차고계적사상융입도이차곡면모형조차탐측적산법중，설계출대모형오차특별시조차구유저항능력적조차탐측산법。은건초치적선권질대법즉위항차고계적일충，수선시통과선성규화적단순형해법래계산관측치적잔차，연후재근거잔차화유관적삼수，안소선택적권함수，계산매개관측치적권，경과질대계산구득관측치적잔차。통과실예증명，구유은건초치적선권질대법구유교강적은건성화조차탐측능력。
The article merged the idea of robust estimation into the algorithm of gross errors in quadric surface model .Robust Estima-tion contains the method of weight iteration with initial values .First, we calculate the residual errors of observed values with linear programming.Then based on the residual errors and parameters , the new weight value for each observation according to the weight function was figured up .The experiment showed the method had strong robustness to detecting gross errors .