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mean square deviation
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  均方差
    The simulation results show that the semi-soft threshold denoising method reduces the noise effectively, improves the ratio of signal and noise, retains the detail of image and obtains the minimum mean square deviation. It finds some application in engineering.
    仿真结果表明:半软阈值去噪方法有效地抑制了噪声,提高了信噪比,同时保留了图像细节,获得了最小的均方差,具有一定的应用价值.
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    The simulation on PC shows that the algorithm can find the critical nodes in topology,and the mean square deviation can evaluate accurately the survivability for a given connected topology.
    计算机仿真结果表明,利用该模型算法可以发现拓扑图中关键节点,同时度量值均方差可以准确评估给定连通网络拓扑图的抗毁性能。
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    Simulation result shows that,our peer-to-peer network architecture has less maximum load of single node and load mean square deviation of overall nodes than Chord.
    仿真实验结果表明,单个节点的最大注册用户负载量和节点负载量均方差均小于Chord对等网络。
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  “mean square deviation”译为未确定词的双语例句
    The denoising and edge detection for a typical image is carried out. Simulated experiments demonstrate that the proposed approach is effective on image denoising and can keep the edge information at same time. Its mean square deviation is reduced 2.4% compared with the dual-tree complex wavelet.
    本文对加噪图像进行去噪仿真试验,并进一步进行边缘检测,仿真试验结果表明,该方法能有效消除图像噪声并保留图像原有边缘信息,与双密度双树小波相比,去噪效果明显改善,均方误差减小了2.4%。
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  mean square deviation
As a measure for the goodness of fit we use the mean square deviation; for this we take a wide sense stationary stochastic process as basis.
      
Parameters that satisfy the closure equations exhibit better root mean square deviation than those that do not satisfy the closure equations in most of the cases.
      
In this study, a root mean square deviation (RMSD) in the impedance signatures of the PZT patches is used as a damage indicator.
      
Asymptotic distribution of the mean square deviation of the Gasser-Müller estimate of the regression curve is investigated.
      
Limit Distribution of the Mean Square deviation of the Gasser-Müller Nonparametric Estimate of the Regression Function
      
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This paper constructs the probable model of the output sequences of the stop and go generator and with this kind of sequences it discusses the properties of probability distribution,independence,expected value and mean square deviation.It proves that they satisfy the law of great numbers.

本文先建立了“停走”生成器输出序列的概率模型 ,讨论了由这类序列构成的随机变量序列的概率分布、独立性、数学期望和方差等概率性质 ,证明了此类随机变量序列服从大数定律。

The principle of an improved method for on line Q factor measurement is presented, describing that the space levels and the mark levels can be decided respectively by different thresholds. By introducing a coefficient that denotes the intensity of noise in high speed optical communication systems, the expressions for calculating the root mean square deviation of spaces and marks are modified. Based on the novel method presented, an experiment scheme by the digital signal processor...

The principle of an improved method for on line Q factor measurement is presented, describing that the space levels and the mark levels can be decided respectively by different thresholds. By introducing a coefficient that denotes the intensity of noise in high speed optical communication systems, the expressions for calculating the root mean square deviation of spaces and marks are modified. Based on the novel method presented, an experiment scheme by the digital signal processor (DSP) approach is designed and a Q factor testing board is developed. The simulating results coincide with the theoretical values when the optical noise amplitude vibrating in a practical range. With the improved method the signal to noise ratio (SNR) of practical systems can be measured more accurately than previously published ones.

提出了一种改进的Q值在线检测方法 ,指出可以使用不同的门限电平分别对空号和传号进行判决 ,并引入噪声系数表征高速光纤通信系统信号噪声的幅度变化范围 ,相应地修正了空号和传号均方差的计算表达式 .基于改进的方法设计了实验方案 ,采用数字信号处理芯片(DSP)技术开发了Q值测试板并进行了模拟测试 .在一定噪声范围内 ,测试结果与理论值吻合得较好 .相比于现有的Q值在线检测方法 ,改进的方法更精确地表示了传输信号的信噪比 ,具有更好的实用性

The estimation methods of noise energy are studied in this paper, which include MAD method and its improved null field correlation estimation method. Semi-soft threshold method is put forward based on classical threshold methods. The simulation results show that the semi-soft threshold denoising method reduces the noise effectively, improves the ratio of signal and noise, retains the detail of image and obtains the minimum mean square deviation. It finds some application in engineering.

研究了噪声能量的估计方法:MAD法及其改进方法,空域相关估计法.在传统阈值法的基础上,提出半软阈值法.仿真结果表明:半软阈值去噪方法有效地抑制了噪声,提高了信噪比,同时保留了图像细节,获得了最小的均方差,具有一定的应用价值.

 
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