cross-correlation function是什么意思

网络释义

用法例句

Taking the template image and the sub-image of target image as non-correlation random process,the cross correlation function is described as the inner-relation of two random .

在图像的检测中应用随机过程的互相关性,对织物纬档的检测进行了研究,分析了互相关函数值与2幅图像相似性的关系。

A frequency domain poly reference modal identification method under operational conditions was presented on the basis of the cross correlation function of measured responses to solve the only output problem.

针对工程实际情况 ,从实测响应间的互相关函数入手 ,推导出适用于工作状态下的频域多参考点模态识别法 ,然后采用一飞机模型对该方法进行了试验验证。

A theory of cross correlation functions is developed in this paper that the cross correlation functions can be expressed as summations of decaying sinusoids as the impulse response functions under white noise excitation.

对互相关函数理论的进一步发展作了详细推导 ,探索出一条将互相关函数理论同多种经典模态分析方法相结合进行环境激励下模态分析的方法。

A power spectrum analysis and analytical cross-correlation function(ACCF) were applied to obtain the group delay time cased by coatings and coating density and thus an ultrasonic NDT system was built up for evaluating layered materials.

该方法考虑超声波在涂层中传播时,不同界面的回波信号相互叠加并发生多重反射的传播特性,运用功率谱分析及互相关函数分析方法,提出了由涂层引起的群速度延迟时间及涂层密度的求解方法,建立了适于涂层材料评价的超声无损检测系统。

On the one hand,cross-correlation function is used for time-delay identification;Fast Fourier Transform and its inverse transform are applied to improve the computational efficiency.

该算法一方面采用互相关函数来辨识滞后时间,并引进了快速傅里叶变换及其反变换,提高了计算效率;另一方面,在变参数增量估计递推最小二乘算法估计时变参数的基础上,引入误差级序列,改善了时变参数的辨识精度。

In the proposed method, the sound arrival time difference between different microphone pairs is analyzed by measuring the cross-correlation function of the received signals,and the direction angles of the sound source related to three axes can he easily derived according to the time dif.

该方法在直角坐标轴上放置4个麦克风,声源到达麦克风对之间的时间差可以由测量接收信号的互相关函数得到。

An optimized approach for single-hole method of shear wave velocity measurement based on correlation functions;

基于互相关函数的单孔法波速测试优化算法

Applications of correlation function in shear-velocity measurement of single-hole method;

互相关函数在单孔法剪切波速测量中的应用

With the correlation function of the signal as the measure, the transform relationship between the two images was optimized by means of an artificial neural network.

方法将一种新的信号处理的概念引入配准过程,以两组具有时延特性的随机信号分别描述待配准的两幅医学图像的边缘特性,继而提出一种以信号互相关函数为性能指标,通过利用神经网络的泛化能力对轮廓特征点样本进行训练以得到最优变换参数的头部断层扫描图像自动配准算法。

The cross-correlation is high oscillatory with similar amplitudes around the peak because the narrow-band echoes is high oscillatory with slow-changing envelope, so that it becomes difficult to find the actual maximum.

基于互相关函数的时延估计方法是脉冲法超声测距中最常用的算法,但窄带超声回波信号的慢衰减高频振荡特性导致它们的相关函数在峰值位置近似作等幅振荡,从而为精确搜索相关函数的峰值带来困难。

For odd n,the cross-correlations between Gordon-Mills-Welch(GMW) sequences and Welch-Gong(WG) sequences(decimated WG sequences with one particular exponent) and that of WG sequences were investigated.

对于奇数n,研究了Gordon-Mills-Welch(GMW)序列与Welch-Gong(WG)序列(及其某一采样序列)间的互相关函数以及WG序列间的互相关函数。

Auto-correlation function of the most of the pseudorandom sequences has been resolved preferably, but cross-correlation function doesn t give a complete de.

虽然,大部分伪随机序列的自相关函数已得到较好的解决,然而,互相关函数却没能给出一个完整的描述,比如,m序列的互相关函数到目前为止仍然没有得到很好的解决,这样就制约了人们对伪随机序列的应用。

We prove that the crosscorrelation function of No sequences must take on each value of the set {2n -1,-2m-1,-1, 2m-1) ,and present the distribution of these crosscorrelation values.

讨论了ＮｏＳｅｑｕｅｎｃｅｓ的互相关特性，证明了ＮｏＳｅｑｕｅｎｃｅｓ的互相关函数一定取集合｛２~ｎ－１，－２~ｍ－１，－１，２~ｍ－１｝中的每一个值，并且给出它们各自的分配。

In this paper we prove the crosscorrelation function Cd(t) of binary m-sequences and their d-decimation sequence must take every value of the set {-1,3·2m-1,2m+1-1,2m-1,-2m-1},when n=2m and odd m≥3 with the decimation factor d=2m+3,and present the respective distributions of these crosscorrelation values.

本文证明了当n=2m(m≥3,m是奇数)、采样因子d=2m+3时,二元m序列与其采样序列的互相关函数Cd(t)必取集合{-1,3。

Study of Delay Time of Transfer of Rolling Mill Vibration Based on Cross-correlation Function

基于互相关函数的轧机振动传递时间滞后分析

Application of multiple cross-correlation functions to the measurement of shear-wave velocity

多重互相关函数在剪切波速测量中的应用

Study on the utrasonic distance measurement system for seabed microtopography

互相关函数法在海底微地形测量中的应用研究

Direction of Arrival Estimation Approach Based on Phase Angle Feature of Correlation Function Using RBF Neural Networks

基于互相关函数相角特征的RBF神经网络来波方位估计

A parabola interpolation is used to reduce the measurement error.

采用抛物线插值计算互相关函数峰值,减少测量误差。

Traffic Flow Shadow Detection by Method of Normalized Correlation Function

应用归一化互相关函数法进行交通视频阴影检测

STATISTIC DETECTION FOR COMPSITE LAMINATE DAMAGE BY APPLIC-ATION OF CORRELATION FUNCTION AMPLITUDE VECTOR METHOD

基于互相关函数幅值向量的复合材料层合板损伤的统计检测

Correlate this option starts only correlate function. The result is stored in correlation matrix.

关联这个选项启动单一的相关函数。结果被存放在交互作用矩阵中。

A Method for Phase Difference Measurement with Correlation Function Based on Mat lab

基于MATLAB的信号相位差的互相函数求法

The autocorrelation function is an even function.

自相关函数是一个偶函数。

Some Studys on Bent Functions and Correlation Immune Functions;

Bent函数及相关免疫函数的若干研究

Properties of k-Hypermonogenic Functions and Their Relative Functions

k-超正则函数及其相关函数的性质

The objective function is defined as the summation of normalized zero-delay crosscorrelation of all common-image gathers.

目标函数定义为各共成像点道集零延迟归一化互相关值之和。

Lipschitz Functions Associated with the Hankel Transform;

与Hankel变换相关的Lipschitz函数

The method, based on cross-ambiguity function, is more suitable for time delay estimation in low SNR.

这种基于互模糊函数的算法与传统的直接互相关法相比,更适用于低信噪比情况下的时差估计。

A comparative study of copula function correlation and correlation coefficient

相关系数与Copula函数相关性比较研究

Studies of Rank and Tail Dependence Represented by Copula Function

基于Copula函数的秩相关和尾相关研究

The regressive analysis is that the data of engineering and scientific experiment are fitted into linear function to correspond to the mutual relationship among the variable.

回归分析是把工程和科学实验数据拟合为线性函数,以反映变量间的相互关系。