摘要
抗差Ｍ估计是使用最广泛、计算较简明的抗差估计法，基于多维Ｍ估计原理，建立了经典测量平差函数模型的抗差解，并推导出相应的误差影响函数；为了使抗差估计适于不同类型以及不同先验精度的各类观测的混合平差，将采用等价权原理构造抗差解式。
Robust M estimation is widely used for its robustness and simple calculation procedure. Based on the principle of multidimensional M estimation,the robust estimators of classical adjustment models are established. The corresponding influence functions of the estimators are derived. An equivalent weight principle is used in constructing the robust estimator for combined adjustments with various priori pricision and every kinds of observations.
出处
《中国科学院研究生院学报》
CAS
CSCD
1995年第2期191-198,共8页
Journal of the Graduate School of the Chinese Academy of Sciences
关键词
抗差估计
M估计
等价权
平差
影响函数
robust estimation, M estimator, equivalent weight, adjustment,influence function
