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FreqzPhase
- 对信号进傅里叶变换，得到振幅谱和相位谱，并可画出振幅谱和相位谱。-The signal into the Fourier transform, the amplitude spectrum and phase spectrum and amplitude spectrum and phase draw spectrum.
STFT
- 短时傅里叶变换的一些简单的演示，其中有矩形窗和高斯窗-some demos for the short time fourier transform
fft
- 利用matlab的fft函数进行快速傅里叶变换的m文件-Matlab' s fft function using the fast Fourier transform of the m file
stft
- 用matlab实现信号的加窗傅里叶变换，并绘出结果。-Using matlab to achieve signal windowed Fourier transform, and mapped the results.
fft2d
- 数字图像的傅里叶变换包括旋转平移后的原图及其频谱图。显示用的是三维坐标-Digital image, including the Fourier transform of the image after rotation and translation spectrum Fig. Show that using a three-dimensional coordinates
FT2D
- 任意常用二维函数傅里叶变换，包括绘图功能。-Any commonly used two-dimensional Fourier transform functions, including graphics.
97288382frft_square
- 分数阶傅里叶变换，MATLAB程序代码，从国外网站下载-fraction fourier transform
digital_signal_processing
- 给出了数字信号处理课程设计的基本程序，包括采样、快速傅里叶变换、功率谱分析等。-Give a digital signal processing of the basic procedures for curriculum design, including sampling, fast Fourier transform, power spectrum analysis.
DFT
- 离散傅里叶变换的程序，可以画出原图和频谱-Discrete Fourier Transform process
matlab-fft
- 在matlab环境下编写的快速傅里叶变换程序，改变换程序简单有效-Matlab environment in the preparation of the fast Fourier transform procedure to change the procedure for simple and effective
therefft
- 改程序是建立在一维FFT的基础上编写的，改进的程序可以实现三维的快速傅里叶变换-3D-FFT
DFT
- 对图像进行傅里叶变换，观察其幅度谱和相位谱-Fourier transform of the image to observe its amplitude spectrum and phase spectrum
restruct
- 用MATLAB实现数字图像的傅里叶变换，显示图像频谱-Digital images using MATLAB Fourier transform, display the image spectrum
shijianxulie
- 时间序列的时频特性分析研究时间序列的傅里叶变换及逆变换，快速梅林变换及逆变换，短时离散傅里叶变换，得到瞬时频率。 研究时间序列的Born–Jondan时频分布图，Butterworth时频分布图，Choi–Williams时频分布图，得到瞬时频率。 -Time series analysis of time-frequency characteristics of time series of Fourier transform and inverse transform, the fa
FFT
- 这是一个快速傅里叶变换分析谐波类程序，以及生成火柴梗图的程序-This is a class of fast Fourier transform analysis of harmonic procedures, and the program generates Stick Figure
fft2
- 图像的二维傅里叶变换，matlab编程，很好用。-Two-dimensional Fourier transform image, matlab programming
Fractional-Fourier-transform
- 分数阶傅里叶变换，一维的分数阶傅里叶变换matlab程序-Fractional Fourier transform
matlab
- 压缩文件中包含用小波变换、傅里叶变换、哈达玛变换、离散余弦变换实现图像压缩的源码，和一个绘制图像直方图及均衡化后的图像的直方图的程序。-Zip file contains the wavelet transform, Fourier transform, Hadamard transform, discrete cosine transform image compression source code, and a procedure of drawing image histogram .
声音解析matlab
- 对非平稳信号进行分段、截取，再做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The non-stationary signals are segmented and intercepted, and then the short-time Fourier transform is used to analyze their frequency spectrum characteristics, and the frequency charact
keypoint
- 对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征，以图像的形式表达出，最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi