用局部线性方法给出未知函数的M-估计，用两步估计方法给出参数的M-估计。
The robust M-estimate of the unknown function is proposed by local linear method, and the robust M-estimate of the unknown parameter by tow step method.
对应于方差参数这两种估计的回归系数的两种两步估计，它们的均方误差大致相当。
However, two-stage estimates of regression coefficients corresponding to these two estimates have approximate equal mean square error.
同时，结合相位编码步进频率信号形式提出在高速目标情况下实现精确速度测量的两步估计方法。
Simultaneously, the method implementing precise velocity estimation in two steps associative with PCSF signal characteristic under high moving targets is presented.
本文提出了一类新的协方差改进估计，并研究了这一类协方差改进估计的优良性质及其相应的两步估计的优良性质。
In this paper, we propose a new group of covariance improvement estimators, and discuss these estimators and the related two stage-improved estimators' properties and advantages.
在两步估计法中，利用正交变换得到了总平均的估计，然后采用拟合常数法得到了方差的估计，并证明了该估计是无偏估计。
In two-stage estimate, used orthogonal transformation to estimate aggregate average and fitting constants method to estimate variance which was unbiased.
在本月发表的一篇新论文中，这三位经济学家完善了估计，发现经济增长一般是分两步放缓。
In a new paper published this month, the three economists refined their estimates and found that growth usually slows in two steps.
估计过程分为两步。
提出了一种基于两步运动估计的系列图像匹配算法。
This paper proposed a two-step motion estimation algorithm to match a series of images.
通常，不确知多变量系统输出量的估计分为两步：一是辨识系统；
In general, there are two steps in the estimations of the outputs of the uncertain multivariable system:first, identifying the system;
通常，不确知多变量系统输出量的估计分为两步：一是辨识系统；
In general, there are two steps in the estimations of the outputs of the uncertain multivariable system:first, identifying the system;
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