均方误差

Thereby, these facts indicate that the SDE not only have better statistic properties but also have uniformly smaller mean square errors than ANOVAE in an available group of linear mixed models. The other significative following work is to generalize the idea of SDE to multivariate linear mixed model and obtain the SDE of variance component matrices which uniformly dominate the ANOVAE either.

对于含有一个随机效应的混合模型，目前文献中都仅讨论了方差分量的谱分解估计和ANOVA估计等价的充要条件，本文首次给出了方差分量的谱分解估计在均方误差意义下严格的优于ANOVA估计的理论结果，并推广到广义谱分解估计，从而说明谱分解估计不仅较ANOVA估计有更好的统计性质，而且在一类常用的模型下有更小的风险损失。

The mean square error is presented to describe dynamic error and evaluate its dynamic accuracy.

提出应该以均方误差来描述动态测量误差并对其精度进行评价。

The relation between mean square error and the characteristics of the measurement system is derived.

推导了动态测量的均方误差与测量信号和仪器特性的关系，明确了动态测量误差的各种成分，动态测量误差与静态测量误差的区别及联系。

Four sub-channels are used in the forward equalizer and the coefficients of the equalizer are adjusted by the error of constant modulus algorithm. The advantages of FSE and DFE are integrated. The ideal equalization can be obtained as long as the length of the equalizer equal to or bigger than that of the channel, and the algorithm has the characteristics of faster convergence and smaller mean square error.

该算法前馈滤波器采用4路子信道系统模型，用常数模误差函数对均衡器权系数进行调整，综合了分数间隔均衡器和判决反馈均衡器的优点，均衡器权长只要大于或等于信道长度就能完全均衡信道，该算法收敛速度比波特间隔判决反馈盲均衡算法与T/4分数间隔盲均衡算法(T/4FSE)快、均方误差比BSDFE与T/4FSE小，且计算量不变，有利于信息的实时恢复。

Some improvements for the mean square errors of the ratio estimator are presented.

改进了比率估计的均方误差，给出了偏差的价为 1/n3 的比率估计量均方误差及其估

The mean square errors and estimated mean square errors for the ratio estimator with bias of order 1/n 3are given.

改进了比率估计的均方误差，给出了偏差的价为 1/n3 的比率估计量均方误差及其估

During the search process,a lot of codewords can be rejected by utilizing the relationship among the sum of the input vector,the sums of the codewords and MSE.

在迭代过程中，利用输入矢量的和值、各码字的和值以及均方误差三者之间的各种特性排除大部分候选码字而免去许多均方误差计算。

A necessary and sufficient condition for the unbiasedness of Balanced LS Estimation is gained, and for the given L, t can be chosen to make the MSEM of the Balanced LS Estimation less than that of OLS Estimation.

给出了平衡LS估计为无偏估计的充分必要条件，对于给定的L，适当地选择参数t可使平衡LS估计的均方误差矩阵小于OLS估计的均方误差矩阵。

Simulation results show that the blind MMSE equalizer has smaller mean-square error of symbol estimation than the corresponding zero-forcing equalizer.

仿真结果表明，该均衡器比基于线性预测的盲置零均衡器有更小的符号估计均方误差。

Simulation is carried out to compare it with least mean square-based blind equalizer and neural networks-based blind equalizer, and the results show the method has much better performance.

通过仿真实验，并与采用最小均方误差准则的盲均衡器和采用神经网络的盲均衡器进行比较，结果表明该方法的非线性均衡性能最佳。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。