查询词典 mean square

The conventional adaptive beamforming techniques like MMSE and NLMS beamformers can not provide a satisfied performance in some situations such as antenna array overloading and a small angle difference between a desired signal and an interferer.

在天线阵列超载，以及强干扰与期望用户信号夹角过近的情况下，传统的线性阵列信号处理算法，如MMSE(minimum mean-square error)、NLMS等表现并不理想。

There exist many literatures concerning the research that the biased estimators with certain restricted conditions outperform the least squares estimator under the criterion of the mean-square error.

2在均方误差准则下，满足一定约束条件的有偏估计优于最小二乘估计的研究相当多，在Pitman准则下的类似研究存在比较大的困难。

The results show that Legendre polynomial of order 11 and 9 can evaluate accurately through-thickness residual stress in the rolling and transverse direction, and the root-mean-square average of the uncertainty is respectively 2.9015 MPa and 4.7558 MPa.

结果表明：分别采用11阶和9阶勒让德多项式能较好地拟合铝合金板材内部轧向和横向残余应力的分布，不确定度的均方根值分别为2.9015MPa和4.7558 MPa。

The results showed that for a higher temperature a shorter simulation time was needed in order that the linear area in mean square displacement curves could be observed while for a ...

结果表明：在较高的温度下，较短的模拟时间内就能观察到均方位移曲线的线性区；而在较低的温度下，需更长的模拟时间。

The results showed that for a higher temperature a shorter simulation time was needed in order that the linear area in mean square displacement curves could be observed while for a lower temperature a longer simulation time was needed.

结果表明：在较高的温度下，较短的模拟时间内就能观察到均方位移曲线的线性区；而在较低的温度下，需更长的模拟时间。

In this paper, we investigate the error performance lower bound of the minimum-mean-square-error V-BLAST receiver.

在这篇论文里，我们主要针对一个使用最小均方误差演算法的V-BLAST接收机进行错误效能上的研究。

In this article, the wave of cutting speed is described as the deviation of mean square and the maximum deviation of speed during the working stroke.

本文用工作行程中速度的平均平方偏差及最大速度差来描述刀具速度波动，并以此为评价函数，采用多目标优化设计方法，确定牛头刨的主传动拉杆尺寸。

An improved maximum likelihood estimator as the generalized correlation method for timedelay estimation, which adopted the methods of windowing and least mean square filter, was proposed.

改进的算法采用加窗法和最小均方差（LMS滤波法，弥补了原算法计算量大及无法消除回响干扰的不足。

One point method, mean square curve method and the maximum likelihood principle to predict P-S-N curve for welded steel structures for arbitary survival rate are presented.

本文建立了任意存活率下焊接钢结构P-S-N曲线预测的一点法，均方差曲线法极大似然法。

From the analysis,we can relate the convergence and the mean square error in terms of the slope and the clipping level of the nonlinear function.

根据该分析，可以将NRLS的收敛和均方误差表示为非线性函数的斜率和限幅水平的函数。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。