数学季刊(英文版)
數學季刊(英文版)
수학계간(영문판)
CHINESE QUARTERLY JOURANL OF AMTHEMTICS
2001年
1期
71-78
,共8页
归庆明%郭建锋%段清堂%周巧云
歸慶明%郭建鋒%段清堂%週巧雲
귀경명%곽건봉%단청당%주교운
秩亏线性模型%最优线性最小偏差估计%广义主成分估计%均方误差%条件数
秩虧線性模型%最優線性最小偏差估計%廣義主成分估計%均方誤差%條件數
질우선성모형%최우선성최소편차고계%엄의주성분고계%균방오차%조건수
本文基于最优线性最小偏差估计的谱分解,定义了秩亏线性模型未知参数的一个新的线性有偏估计类,并讨论了它的许多重要性质.通过选取偏参数的适当形式,构造了许多很有意义的线性有偏估计.最后,给出了一个算例.
本文基于最優線性最小偏差估計的譜分解,定義瞭秩虧線性模型未知參數的一箇新的線性有偏估計類,併討論瞭它的許多重要性質.通過選取偏參數的適噹形式,構造瞭許多很有意義的線性有偏估計.最後,給齣瞭一箇算例.
본문기우최우선성최소편차고계적보분해,정의료질우선성모형미지삼수적일개신적선성유편고계류,병토론료타적허다중요성질.통과선취편삼수적괄당형식,구조료허다흔유의의적선성유편고계.최후,급출료일개산례.
In this paper,we define a new class of biased linear estimators of the vector of unknown parameters in the deficient-rank linear model based on the spectral decomposition expression of the best linear minimun bias estimator.Some important properties are discussed.By appropriate choices of bias parameters,we construct many interested and useful biased linear estimators,which are the extension of ordinary biased linear estimators in the full-rank linear model to the deficient-rank linear model.At last,we give a numerical example in geodetic adjustment.