When the least square criterion is applied to the state estimation of a large scale power system, high order of the equation will make it ill-conditioned.
一个大型电力系统最小二乘方准则的状态估计，由于其阶数很高而出现病态倾向。
Estimation of GM (1, 1) model parameter usually adopts the least square criterion, but test of model precision often USES average relative error criterion.
估计GM(1,1)模型中的参数通常采用最小二乘准则，而在模型精度检验时又常采用平均相对误差。
Aiming at those problems, a time calibration algorithm based on Least-Square Criterion is presented.
针对上述问题，提出了一种基于最小二乘准则的时间校准算法。
Aiming at those problems, a time calibration algorithm based on Least-Square Criterion is presented.
针对上述问题，提出了一种基于最小二乘准则的时间校准算法。
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