针对法方程呈现病态且观测值受到污染而不严格服从正态分布的情况，探讨运用拟准检定法抗御粗差，用岭估计改善法方程的病态性。
This paper discusses the resistance of gross errors with quasi accurate detection and the improvement of ill conditioned equation with ridge estimate when the equation is ill conditioned and polluted.
结果表明，两种方案与“拟准检定法”具有相同的效果，具有粗差的观测值在平差时不起作用。
The results by these two approaches are the same as by QUAD(Quasi Accurate Detection), and the observations with gross error no longer affects the adjustment.
结果表明，两种方案与“拟准检定法”具有相同的效果，具有粗差的观测值在平差时不起作用。
The results by these two approaches are the same as by QUAD(Quasi Accurate Detection), and the observations with gross error no longer affects the adjustment.
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