WebJun 15, 2024 · Chirp Z变换也叫CZT变换或线性调频变换。 Chirp - Z变换 （ CZT ）是离散傅里叶 变换 （DFT）的一般化。 具体来说，设信号长度为N，DFT相当于在Z平面单位 … WebChirp-Z变换，在Z平面的单位螺旋线上采样。 它们通常被叫做频谱细化。而更正常的名字，叫做窄带分析。chirp-z的计算量是比较大的，Zoom-FFT则是先将信号进行带通滤波，那么我带通滤波器的下限频率是fsl，此时，将fsl作为Z平面采样开始的位置，就可以得到fsl ...
Chirp Z-transform - MATLAB czt - MathWorks 中国
WebChirp Z-transform, returned as a vector or matrix. Algorithms czt uses the next power-of-2 length FFT to perform a fast convolution when computing the Z-transform on a specified chirp contour [1] . Web线性调频z变换Chirp Z变换(CZT)相关资料 2010-10-31 18:02:49 分类: matlab 标签: 字号大中小 订阅 Chirp Z变换:线性调频z变换,简称CZT。使用方法:y = czt(x,m,w,a) y = czt(x) y = czt(x,m,w,a) returns the chirp z-transform of signal x.The chirp z-transform is the z-transform of x along a spiral contour defined by w and a. m is a scalar that specifies the … increase image size 150kb
Chirp-及Z变换.pptx
WebMay 4, 2014 · 2014-05-08 求用matlab实现chirp—Z的程序代码步骤如下 2024-01-11 matlab实验,只求代码 2014-05-02 求用Chirp-Z变换处理窄带信号的Matlab程序代码 … WebRABINER et al.: CHIRP Z-TRANSFORM ALGORITHM 87 . Fig. 2. An illustration of the independent parameters of the CZT algorithm. (A) How the z-transform is evaluated on a spiral contour starting at the point z=A. (B) The corresponding straight line con- tour and independent parameters in the s-plane. ... WebDescription. y = czt (x,m,w,a) returns the length- m chirp Z-transform (CZT) of x along the spiral contour on the z -plane defined by w and a through z = a*w.^- (0:m-1). With the default values of m, w, and a, czt returns the Z-transform of x at m equally spaced points around the unit circle, a result equivalent to the discrete Fourier ... increase in affordable housing