物理含义：能量信号的自相关函数与能量谱密度函数构成傅立叶变换对。
Physical meaning: the self-correlation function and the energy spectrum density function compose a Fourier transform pair.
上式表明：功率型信号的自相关函数与其功率谱密度函数构成傅立叶变换对。
Meaning: The self-correlation function and power spectrum density Function of a power-typed signal compose a FT pair.
变换域LMS算法能通过正交变换有效降低输入信号自相关矩阵特征值的分散程度，可提高算法的收敛速度；
The transform domain LMS algorithm can reduce the cross-correlation of input signals effectively through orthogonal transforms, so the convergence rate will be improved;
与通常的自适应多用户检测算法相比，该算法利用了小波变换对小波空间进行了分解，信号经小波变换后自相关性会下降，收敛速度提高。
The algorithm makes use of wavelet transform to divide the wavelet space, which shows that the wavelet transform has a better decorrelation ability and leads to better convergence.
针对一类单幅图像的复制遮盖篡改，提出一种基于快速傅立叶变换相位和幅度的自相关检测算法对篡改部位进行检测。
To detect the forged parts in a single image with copy-move attack, an autocorrelation detection method based on phase and amplitude spectrum of FFT is proposed.
对于非平稳随机信号的功率谱分析，采用自相关函数傅里叶变换和直接傅里叶变换分析时，由于存在数据截断，二者从概念上都不能很好地反映随机信号的功率谱。
The correlation method and FFT method of the power spectrum estimation could not completely reflect the concept of the power spectrum of the non-stationary random signals because of data truncation.
在对带白噪声信号的小波变换特性分析的基础上，基于自相关函数的白噪声检验方法，提出了一种确定小波分解层数的自适应算法。
Threshold de-noising based on wavelet transform which is proposed to determine the decomposition order adaptively is an efficient method to reduce the white noise in the digital signal.
本文还采用粒子像模拟技术，用几种图像处理方法：傅里叶变换法、空间自相关法和位移距离概率统计法分别进行处理，得到了相同的结果。
The simulation method of artificial particle image pairs are presented. The results extracted from Fourier transform method, spatial correlation method and probabilistic method of...
本文还采用粒子像模拟技术，用几种图像处理方法：傅里叶变换法、空间自相关法和位移距离概率统计法分别进行处理，得到了相同的结果。
The simulation method of artificial particle image pairs are presented. The results extracted from Fourier transform method, spatial correlation method and probabilistic method of...
应用推荐