查询词典 primary algorithm

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。

This paper presents a new smart antenna algorithm. Based on the characteristic that in CDMA system desired signal is much larger than other signals after despreading, the algorithm uses eigenvectors of each autocovariance matrix of the first element and one of the other elements to form the weight vector.

本文根据CDMA系统的特点提出了一种新的智能天线算法，该算法利用CDMA系统解扩后有用信号远大于其他用户信号的特点，通过求得每根天线与第一根天线的信号相关矩阵的特征向量来确定智能天线的加权系数。

Finally, experimental results show that MTVA algorithm has good performance and is better than Phase Gradient Autofocus algorithm.

实验结果表明此算法在处理二次相位误差时优于相位梯度自聚焦算法。

The auxiliary variable system was constituted, and the recursive algorithm that can reduce the measurement noise interference has been developed. The bias property of LS with input/output measurement noise has been derived, and the self-adaptive deviation compensation principle of measurement noise variance has been proposed, and the corresponding algorithm is designed. The influence of parameters of wavelet modulating on estimation precision is investigated with simulation examples.

2构造了能降低测量噪声干扰的辅助变量系统及递推算法，研究了输入输出端测量噪声影响下最小二乘估计的偏差特性，提出了两种基于测量噪声方差估计的自适应偏差补偿原理并设计相应算法，用仿真算例研究了调制滤波器参数对辨识精度的影响。

Compared with the original algorithm, the proposed algorithm can averagely reduce the search points by 5%.

实验结果表明该算法相对原算法能平均减少5％的搜索次数。

This algorithm can provide images superior to those obtained by commonly used linear back projection algorithm with a similar reconstruction time.

该方法与目前广泛采用的线性反投影算法重建图象时间相当，但重建图象质量有显著改善。

Experimental results show the image quality has been improved markedly, compared with the typical linear back projection algorithm and Landweber iteration algorithm.

实验结果表明，与典型的反投影及Landweber迭代算法相比，该算法所构图像质量有明显改善。

Fourthly,a Fast Back Projection algorithm is presented.It sloves the problem of large computational load of BP algorithm and the condition of dividing the subapterture is presented.

接着提出了一种快速后向投影算法，解决了BP算法计算量大的问题，给出了子孔径划分的条件。

In order to improve the precision of registration algorithm and the quality of reconstructed image, an image registration method with sub-pixel precision is proposed, and super-resolution reconstruction is performed through iterative back projection algorithm.

提出了一种具有子像素级精度的图像配准方法，并通过迭代反投影算法进行超分辨率重建。

The proposed algorithm does not need complex hash operation, and the matching pointer does not need backdate during matching. Theoretic analysis and experimental results demonstrate that the proposed algorithm efficiently solves the space expansion problem, and process mixed Chinese and English text correctly and efficiently with lower time and space complexity.

理论分析与实验结果表明，所提出的算法在匹配中无需复杂的哈希运算，不需要回溯匹配指针，在中英文混合环境下能够进行正确、高效的匹配，而且不存在空间膨胀问题，具有较低的空间与时间复杂度，有较大理论与应用价值。

A backer of an Afghan law that critics say legalizes marital rape has rejected the international outcry as foreign meddling.

饱受批评的一项法律的拥护者说合法化的婚内暴力不会受国际舆论的干涉。

Years ago, a ancient Egyptian fleet went to the Land of punt for seeking a kind of flavor named "myrrh", and aromatic plants which has dense exotic style for the queen Hatshepsut.

3500年前的一个古埃及的舰队到&彭特之地&寻找一种叫没药的香料。