mean square error

Discussion on the total mean square error of gravity survey in Mountainous Region

山区重力测量总均方误差的讨论

In this paper, based on the error theory, the mean square error of elevation difference median in bilateral observation of subtend trigonometric distance measure is presumed.

应用误差理论，推算测距三角高程对向观测高差中数中误差；

It performs better than widely used mean square error and peak signal to noise ratio.

该方法性能高于常用的均方误差和峰值信噪比图像质量评价方法,且简单有效.

Analysis of Mean Square Error in Areal Measure

面积测量的中误差分析

This paper introduces the accuracy of 1:500 mapping using 1:3000 airphoto for City cadastral surveying. The statistical data show that the mean square error of object survey points is ± 0.173 meter.

本文介绍了地籍测量作业中利用1∶3000像片测绘1∶500图的精度，统计资料表明物点点位中误差为±0.173米。

To signaling with no constant modulus ( such as 16QAM), the switch algorithm is able to achieve less residual Mean Square Error than that of CMA.

该切换算法，对于非常数模信号（如16QAM等），可以获得比常数模算法更小的剩余均方误差。

Therefore, this paper advances mean square error block decision feedback equalizer ( MMSE-BDFE) joint detection algorithm, which combines with ZF-BLE, MMSE-BLE algorithm and the FFT used to block cyclic matrix decomposition to reduce the computational method.

基于上述存在的问题，本文综合ZF-BLE、MMSE-BLE算法以及可用FFT进行块循环矩阵分解以减少运算量的方法，提出了基于FFT的最小均方误差判决反馈块均衡（MMSE-BDFE）联合检测算法。

With covariance matching technique and innovation information of filtering, the noise variance is dynamically adjusted and the mean square error of the fusion system always keeps minimum.

该算法采用协方差匹配技术，依据滤波新息，动态调整测量噪声方差，使融合系统的均方误差始终最小。

Secondly, introduce discrete multi-tone modulation principle in detail, have a systemic and comprehensive analysis and explanation on minimum mean square error ( MMSE) channel shorten time domain equalizer design methods which are based on all kinds of cost functions, analyze their advantage and disadvantage.

详细介绍离散多音频调制原理，对MMSE信道缩短法和基于其他代价函数的时域均衡器设计方法的进行了系统全面的分析和阐述，分析了各自的优缺点；

The results of synthetical data and experiments indicate that it takes only one minute of CPU and the mean square error of iteration is 0.03 nT to inverse 200 depth points with iterating 8 times.

理论模型及实验结果表明：计算200个深度值，迭代8次需CPU时间1分钟，拟合均方误差为0.3nT。

The methods of the evaluation of image fusion, which includes: entropy, cross entropy, mutual information, mean square error, root mean square error, peak-to-peak signal-to-noise ratio were presented.

介绍了图像融合的各种评价方法，包括：熵、交叉熵、交互信息量、均方误差、均方根误差、峰值信噪比。

The average mean square error of height anomaly is ± 0.173 m in three areas.

3个地区高程异常中误差平均值为±0.173m。

Experiment shows that acutance function method is better than mean square error function method. The error factors are analyzed and corresponding improvement approaches are put forward.

实验结果表明在该系统中锐度函数法作判据的效果要优于均方差函数法，最后分析误差因素并提出修正途径。

The modeling performance is assessed in terms of in-band and out-of band errors, such as normalized mean square error and adjacent channel error power ratio, and it is compared with a conventional NARMA, a memory polynomial with respect to accuracy and computation complexities.

广义NARMA模型性能通过使用归一化的均方误差和邻道误差功率比等带内和带外失真误差进行评价，并且在计算精度和计算复杂性方面和传统的NARMA模型及记忆多项式模型进行比较。

Optimal Reinsurance under Standard Deviation Calculation Principle and Mean Square Error Risk Measure

标准差保费原理均方误差风险下的最优再保险

And the transfer function of system is got under the minimum mean square error condition. Wiener filtering is an optimal linear filtering method.

维纳滤波根据平稳随机信号的全部过去和当前的观察数据来估计信号的当前值，在最小均方误差的条件下得到系统的传递函数，是一种最优线性滤波方法。

DOA Passive Location Algorithm on Least Mean Square Error Criterion

一种基于最小均方误差准则的唯方位定位方法

The mean square error relative to the original pixel gray-values is calculated, at the same time, a penalty term is added into this crite.

相对于原始像素灰度值计算均方误差，同时在该准则中加入了一个反映灰度值变化符号的惩罚项。

This paper presents a method of determining the mean square error of horizontal direction and the error of circle graduation of theodolite at the same time.

本文提出了一种同时测定经纬仪水平方向中误差和度盘分划误差的方法。

The second derivative Gaus-sian pulse with the diverse shaping factors and the diverse spectral moving factors acted as basis functions. The iterative combination pulse method and the linear minimum mean square error ( LMMSE) combination pulse method were pre-sented.

以具有不同形状因子和频谱搬移因子的高斯二阶微分脉冲为基函数，提出迭代组合和LMMSE（线性最小均方误差）组合的UWB（超宽带）脉冲设计方法。

By optimizing the mapping scheme between source and channel modulation symbols in a joint source-channel coding/ modulation system, under the distortion measurement of end-to-end mean square error, the proposed scheme has better performance than that of the traditional tandem coding system.

在信源-信道联合编码/调制中，通过优化信源和信道调制符号间的映射关系，在端到端均方误差的失真度量标准下，可以得到比传统级联编码系统更好的性能。

To improve the accuracy of digital MTF ( modulation transfer function) measurement system, two auto-focus evaluation methods ( acutance function method and mean square error function method) are introduced.

为了提高数字式光学传递函数测量的精确度，介绍了2种自动对焦评价方法：锐度函数法和均方差函数法。

In this paper, a new approach is presented for optimizing the approximation of Tanh rule based on Minimum Mean Square Error ( MMSE) criterion under the Gaussian approximation.

该文利用高斯近似法，提出一种基于最小均方误差（MMSE）准则的Tanh法则优化近似新方法。

The Results by using Pick-pick Signal Noise Ratio ( PSNR) or mean square error ( mse) are different from by subjective psychological assessment, while the latter are usually inexactly and have subjectivity.

通常使用的峰-峰信噪比或均方误差与主观感觉并不相符，而主观评价又存在主观性和不确定性，其结果往往因人而异。

Furthermore, an improved detection algorithm based on the minimum mean square error criterion is presented.

本文针对此类调制信号，分析了其独特性质，并基于最小均方误差准则提出了一种改进的接收端检测算法。

The mean square error of the multiplicative model for speckle noise

斑纹噪声相乘模型的误差

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。

The method focuses on minimizing the ensemble mean square error of the estimation.

该方法可以估计的总体均方误差最小.

This thesis uses the Mean Square Error Method, and it constructs the Revised MSB criterion.

这些准则以及方法都会依赖于回归模型的分布, 参数的估计以及检验的分布.

For the systematic error hiding in polar coordinates measurement, a surveying scheme based on multi real time differencing method was presented, and theoretical analysis was made on the accuracy of the method, and furthermore, the Mean Square Error formulae in 3-dimensional coordinates were derived.

针对极坐标测量中存在的系统误差，提出了多重实时差分的测量方案，对该方法的精度进行了理论分析，推导了3维坐标的中误差公式。