摘要
本文首先对方差分量估计中的收敛性问题进行分析,指出方差分量的收敛性和估计方程的摄动性有关。提出了改进收敛性的思想,在此基础上提出了一种改进收敛的方法,用算例证明了所提出方法的有效性。
At first,the convergence performance in variance components estimation studied in the aspect of quality.The study indicated that the convergence performance is in related to the oscillating character of estimation equation of variance components.And then based on this study the author proposed a method to improve the convergence performance,and finally numerical examples were used to prove the validity of the method.
出处
《测绘科学》
CSCD
北大核心
2010年第6期129-130,共2页
Science of Surveying and Mapping
关键词
方差分量估计
收敛性
分析与改进
估计方程
摄动性
variance components estimation
convergence performance
analysis and improvement
estimation equation
oscillating character
