信噪比

By means of analyzing the noise error, it is proposed to use an algorithm of singular value decomposition total least squares to conduct the interharmonics estimation, namely taking the noise interference at both sides of the matrix equation into account simultaneously and solving the minimum norm problem by least square method under such condition. In the proposed algorithm by means of singular value decomposition of a new augmented matrix and by use of a simple and practical method to determine the number of principal singular value related to signal to noise ratio, the storage calculation of right singular matrix is performed, thus a more accurate frequency estimation of interharmonics can be obtained.

通过分析噪声误差，提出采用奇异值总体最小二乘(singular value decomposition total least squares，SVDTLS)算法进行间谐波频率估计，即同时考虑矩阵方程两边的噪声干扰，采用SVDTLS算法求解该情况下的最小范数解，通过对增广矩阵进行奇异值分解(singular value decomposition，SVD)，采用简单实用的与信噪比相关的主奇异值个数确定方法对分解的右奇异矩阵进行存储计算，得到了较精确的间谐波频率估计结果。

Simple upper bounds of signal to noise ratio improvement factor are derived for the suppression of a narrowband first-order autoregressive process and analytical conclusions corroborated by numerical examples.

研究了判决反馈滤波器在直扩系统中估计和抑制窄带干扰的性能，给出了判决反馈滤波器抑制一阶自回归干扰时信噪比提高因子的闭合表达式的上界。

And the data rate is adapted to maximize the spectral efficiency subject to average bit error rate constraints.

推导出基于预测的信噪比和预测误差方差的数据速率的最优解，以此对数据速率进行调整，使得频谱效率在误比特率的约束条件下达到最大化。

The averaging and filtering method is used to extract the VEP signal by improving the Signal-to-Noise.

采用累加平均和滤波的方法提高信噪比，用于提取微弱的脑电信号。

Through the proposed synchronous averaging method, the S/N ratio of the measurement system can be highly improved.

其目的在于提高测量系统的信噪比以取得高精度的频响特性来实现精密测量。

As for the practical seismic data,higher signal to noise ratio is a precondition of azimuthal AVO analyzing.

就实际地震数据来说，较高信噪比（＞5）是进行方位AVO分析的前提。

The correspondence relationship between sea echo's SNR azimuthal distribution and the array's effective...

验证了回波信噪比随方位角的分布同雷达天线阵有效视角的对应关系

In the experimentation, the circular measurement configuration combined with the filtered back projection algorithm,very high signal-to-noise ratio tomography images can be obtained.

实验中，通过旋转超声探测器进行数据采集，并利用滤波反投影算法重建图像，可得到高信噪比的光声层析图像。

In this paper, a different measurement method for CEO is demonstrated and subsequently a better beat frequency signal with the signal-to-noise ratio greater than 40 dB is obtained.

为了实现对锁模飞秒钛宝石激光器的相位控制，采用改进的相移测量装置，使载波包络频移信号的信噪比提高到了40 dB以上。

Apply to the function of SNR, the BER of system based on three schemes were analyzed and calculated.

应用建立的信噪比关系，分析和计算了基于三种不同方案的系统的误码率。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。