A Constrained Least Squares Approach to the General Gauss-Markov Linear Model
一般 Gauss–Markov 线性模型的约束最小二乘方法
The task of estimating the vector of parameters β in the general Gauss-Markov model (y, Xβ, σ2 W) with no restrictions on the design matrix X or the covariance matrix σ2 W is formulated as a constrained linear least squares problem. A BLUE of any estimable function of β is obtained directly by solving this problem. The use of matrix decompositions leads to numerically stable algorithms for computing the solution. The approach is theoretically easy and is shown to be…