摘要
六十年代数学家重新从广泛的意义上提出非最小二乘法的估计问题，并已在抗差估计中取得重要的进展。本文试图从等价权出发，提出一种有效的估计方案，包括方差估计，全文立论多处借用了经典最小二乘理论。通过一个小算例，此方案和另外几种方案作了试比较，结果较好。
:1. Outliers and robust estimation2. Eqhivalent weights3. Choice of robust schemes——IGG scheme4. One exampleIn the sixties mathematicians resunied the non-least-squares problems and have madeprominent progress in robust-estimation. The present paper, starting from "equivalent"weights", proposes a robust scheme (IGG) for estimation of parametere and covariancesof their functions, in reasoning much use is made of the classical least-squares theory.The results of trial computation on a smell net show that the IGG scheme is good ascompared with some other ones.
出处
《测绘学报》
EI
CSCD
北大核心
1989年第2期115-120,共6页
Acta Geodaetica et Cartographica Sinica
