两步估计效率的若干注记

重庆交通大学学报（自然科学版） ›› 1991, Vol. 10 ›› Issue (2): 6-9.

两步估计效率的若干注记

杨虎

基础部

收稿日期:1990-06-13 出版日期:1991-04-22 发布日期:2016-11-09
作者简介:杨虎,男,27岁,助教。
基金资助:
重庆交通学院青年科学基金;面上一般项目资助

Some Notes of the Efficiency of Two-Stage Estimate

Yang Hu

Department of Basic Courses

Received:1990-06-13 Online:1991-04-22 Published:2016-11-09

摘要/Abstract

摘要： 本文通过一个变换很简单地改进了文献[2]的结果,并给出了更简明严格的下界。所用的方法具有普遍实用性,且文中的下界已无法再作实质性的改进。

关键词: 椭球等高分布, 最佳线性无偏估计, 两步估计

Abstract: In this paper, we improve the results of[2] easily by a transformation and give lower limits which are more concise and stricter. The method is commonly practical, and the bounds of this paper can't be further improved in essence.

Key words: elliptically contoured distribution, best linear unbiased estimate, two-stage estimate

杨虎. 两步估计效率的若干注记[J]. 重庆交通大学学报（自然科学版）, 1991, 10(2): 6-9.

Yang Hu. Some Notes of the Efficiency of Two-Stage Estimate[J]. Journal of Chongqing Jiaotong University(Natural Science), 1991, 10(2): 6-9.