剩余误差

ANA系统剩余误差理论及测量研究

The Research of the Theory of Residual Error and Measurement Method in ANA System

本文提出并阐明了自动网络分析仪（ANA）系统剩余误差的概念。

The concept of residual error in an Automatic Network Analyzer ( ANA ) system is presented and expounded .

关于CMA盲均衡算法的稳态剩余误差的研究

The Study About Residual Error after Convergence of CMA Blind Equalization Algorithm

拟合与时间相关的QTL基因型的期望均值向量和剩余误差的协方差矩阵是动态性状功能定位的核心内容。

Modeling time-dependent expected mean vectors of QTL genotypes and the structure of the within-subject residual covariance matrix are the essence for functional mapping QTL of dynamic traits .

根据QTL的统计检测效率，通过比较关于QTL基因型的期望均值向量和剩余误差的协方差矩阵的子模型的不同组合，来筛选优化的功能定位模型。

We choose an optimal model for functional mapping via comparing various combinations of submodels for mean vectors of QTL genotypes and residual covariance matrix according to statistical power of detecting QTL .

在剩余误差模型的指导下完成各剩余误差项的精确测量，从而导出正确表征ANA系统性能的有效技术指标。

Based on the residual error model , the various residual errors can be measured precisely , thus providing the effective technical specification that can characterize the property of ANA system correctly .

在介绍Euler变换计算Sommerfeld积分的基础上，应用Bessel函数和分层媒质中谱域格林函数的渐近表示，导出了该算法的剩余误差估计式。

On the basis of introducing Sommerfeld integral calculation for Euler transformation , the progressive expressions of Bessel function and spectral Green 's function in layered media are used to derive the formula of remainder for the algorithm .

从具有截断误差校正的广角反射NMO校正公式出发，分析了引起动校误差的原因，并指出由于误差的存在而进行的剩余误差估算方法在实现过程中存在的问题。

Starting from the formula of NMO correction of wide-angle reflection having the correction of truncation errors , the paper analyzed the causes of NMO errors and pointed out existed problems during the process of evaluating the residual errors .

根据改进的恒模算法（MCMA）具有冷启动能力和判决导引最小均方误差（DD-LMS）算法剩余误差小的特性，对一种双模式盲均衡算法进行了研究。

According to the modified constant modulus algorithm ( MCMA ) 's cold start ability and decision directed least mean square ( DD-LMS ) algorithm 's small residual error property , a dual-mode blind equalization algorithm was introduced .

虽然判决导引最小均方误差算法（DD-LMS）剩余误差小，但是，在信道眼图闭合的情况下，该算法无法收敛，即不具备冷启动能力。

Though the decision directed least mean square error algorithm ( DD-LMS ) has small residual error , when the channel eye close , it can not converge . That is , it has no cold start ability .

从理论上证明了该算法的复杂度，但是该算法的简单是以牺牲稳态性能为代价的，并提出了今后Sign-LMS盲最大似然估计算法的研究方向&如何减少稳态剩余误差。

Theoretically the complexity of the algorithm has been proved , but the algorithm is simple at the cost of stable mean square error . How to reduce stable mean square error is the research direction of blind Sign-LMS MLSE algorithm .

平均相对剩余误差为15%，8%和4%。

The correlation error is below 15 % , 8 % and 4 % respectively .

校准负载不理想对矢量网络分析仪剩余误差影响分析

Residual Errors Analysis of Vector Network Analyzer Resulting from Faultiness of Load of Calibration Kit

误差信号由偏振光谱提供，可避免由稳频后因激光功率变化所导致的剩余误差。

Using error signal offered by polarization spectroscopy can avoid error which produced by laser intensity swing .

该算法通过增加很少的计算量不仅提高了收敛速度而且获得更小的剩余误差。

This algorithm improves convergence speed and reduces residual error by increasing small the quantity of computation .

分析了自适应望远镜系统的波面补偿剩余误差与频率响应的关系。

The relationship between residual wavefront phase error and frequency response in an adaptive optical telescope is analyzed .

仿真结果表明，使用此算法加快了均衡过程的收敛速度、减小了剩余误差及误码率。

Simulation experiments show that this algorithm accelerates the convergence , and reduces the steady-state error and the bit-error-rate .

仿真表明，这两种方法都能很好地减小稳态剩余误差，提高均衡性能。

Simulation results show that both two methods can reduce steady residual error and improve the performance of equalization .

仿真结果表明，新的算法比传统的算法有好的性能和小的稳态剩余误差，并且大大减少了计算复杂度。

The simulation results show that the new algorithm has better performance , less steady residual error and lower calculation complexity than conditional ones .

计算机仿真表明，该算法实现简单，收敛效果好，稳态剩余误差小，其性能优于已有的一些同类算法。

Simulation results show that the proposed algorithm has better performances with low complexity , fast convergence and small steady residual error than the same algorithm .

本文说明在H1/2范数里，近似解的剩余误差可以用作误差估计。

In this paper , it is shown that the residual error in the H 1 / 2 norm can be used as an estimate of error .

仿真实验结果表明了该鲁棒性算法具有良好的性能，在收敛速度、稳态剩余误差、误码率等性能方面均有改善。

The simulation results show that the robust algorithm can not only improve the convergence speed , but also reduce steady residual error and bit error rate .

影响均衡器剩余误差的重要因素是误差函数，研究表明，误差函数不同，均衡器的性能不同。

Error function is an important factor that affects residual error of equalizer , studies have shown that if error function is different the performance of equalizer .

然后在输入图像人脸初定位的基础上，利用嘴部的主元特征，通过最小剩余误差能量的判决准则实现人脸嘴部区域的自动定位。

For an input image , the mouth region was recognized according to least residual error energy ( LREE ) criteria after the face region was first located .

在代价函数中引入了判决引导均方误差，优化代价函数，减少局部极值和降低剩余误差。

So the decision directed least mean error is introduced in the cost function , and the number of local optimum values can be reduced and residual error is decreased .

对改进算法中二次滤波的噪声方差参数选取采取一种计算反卷积剩余误差的方法，用在第二次滤波步骤中。

The paper also gives an algorithm for estimating the variance of the imaging noises by computing residual deconvolution errors , which is used in the second step of the modified Wiener filter .

提出了一种自适应变步长恒模盲均衡算法，利用剩余误差信号的自相关函数估计值作为控制步长的因子来自适应改变步长的大小，克服了恒模算法存在的固有缺陷。

A new variable step-size CMA blind equalization algorithm is introduced to conquer the defects of CMA , in which the step size is controlled by the estimation of error signal 's autocorrelation .

该方法首先估计时延，然后再对剩余误差进行相位估计，从而扩大了算法适用的运动误差范围。

With this method , the time delay is estimated firstly , then the residual phase error . Through this way the movement error range that can be compensated by this algorithm is extended .

同时针对采用固定步长的常数模算法在收敛速度和剩余误差之间的矛盾，将变步长思想应用于常数模算法，提出了基于蚁群优化的变步长盲均衡算法。

Aiming at the contradiction of constant modulus algorithm ( CMA ) with a constant step-size between the convergence rate and the residual error , the variable step-size theory is applied to CMA . So , the variable step-size CMA based on ant colony algorithm are put forward .

小数N频率合成器剩余量化误差补偿技术研究

The Research on Residual Quantization Error Compensation Technique in Fractional-N Frequency Synthesizer