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STFTTest
- 《实用小波分析》附录中STFT源代码(VC中编译链接正确,运行出错fopen处;WinTC中可以运行,我电脑显卡有问题,未显示出结果;Turbo C中未生成目标文件)-This program is for computing the STFT of the signal in a data file and create a output data file containing STFT result.
stft_timefreq_complexSignal
- 短时傅立叶变换测频,可对复信号处理。界面设计好,用户交互方式编程。-STFT frequency measurement can be complex signal processing. Interface design, the user interactively programming.
STFT
- 对信号进行短时傅里叶变换,可以方便的调节各种短时傅里叶变换的影响因素。-Short-time Fourier transform of the signal, you can easily adjust a variety of short-time Fourier transform of the influencing factors.
STFT_serial
- 短时傅利叶转换或短时傅利叶变换(英文:short-time Fourier transform, STFT,又称short-term Fourier transform)是和傅利叶转换相关的一种数学转换关系,用以决定时变讯号其局部段落之弦波成份的频率与相位。 -Short-time Fourier transform or short-term Fourier transform (in English: short-time Fourier transform, STFT, also kn
Wigner---Will-
- 维格纳-威尔分布三维图面图,跳频信号的stft,跳频信号的维格纳-威尔分布的频谱图-Wigner- Will the distribution of three-dimensional surface maps, frequency hopping signal stft, frequency hopping signal Wigner- Will the distribution of spectrum
Windowed-transform
- 加窗变换,信号在高斯窗函数取不同a时的STFT,窗函数是不同值时的stft-Windowed transform the signal in a Gaussian window function to take different when the STFT, the window function is different values of the stft
OLA
- 编写一Matlab函数,用30ms三角窗和15ms帧移计算语音信号的STFT。并用OLA法重建原始信号。设计一种基于OLA的综合方法,以通过重复每帧对语音信号以因子2进行时域扩展。-Write a Matlab function, STFT and 30ms triangular window and 15ms frame-shift calculation of the speech signal. And the OLA method to reconstruct the original
stft
- 时频分析,一个频率为100的正弦信号做WVD时频分析,做出图后有两个频率(100Hz和400Hz)-Time-frequency analysis, a sinusoidal signal with a frequency of 100 do WVD time-frequency analysis, make a diagram after the two frequencies (100Hz and 400Hz)
fmcw-matlab-code
- 利用STFT可以估计信号在每片短时窗内的频率得到信号的瞬时频率,该曲线由一组时间和频率相对应的点组成,反映了信号频率随时间的变化。-Using STFT can estimate the frequency of the signal in every piece of short-time window get signal instantaneous frequency, the curve consists of a set of time and frequency of corresp
blind-source-separation
- 在MATLAB环境中,得到语音信号的散点图,STFT变换和小波包变换。-In the MATLAB environment to obtain a scatter plot of the speech signal, STFT transform and wavelet packet transform.
STFT
- 短时傅里叶变换的例子,运行处信号图和三维时频分析图-Examples of short-time Fourier transform, while running at a frequency signal and three-dimensional analysis chart
stft
- 利用时频分析的方法分析一段语音信号的时频特征,并进行降采样等处理,可直接运行-When the time-frequency analysis method to analyze the frequency of use of a voice signal characteristics, and down-sampling and other treatment, can be directly run
stft_person
- 自己编写的短时傅里叶变换(STFT)程序,短时傅里叶变换可以获得非平稳信号的时频图,主要原理是用滑窗截取一段信号,认为这一段时间内信号是平稳的,对其进行fft变换获得频谱-I have written a short time Fourier transform (STFT) program, short-time Fourier transform can be obtained non-stationary signal frequency diagram, the main princip
STFT_SWT_ST_matlab-files
- STFT和ST变换的基本函数,和一个stft的一个例程-This code computes the Stockwell transform (S-Transform) of a one dimensional series without for loop, thereby making it computationally fast and simple. S-Transform was proposed in 1996. A nice tutorial on S-Transform can
STFT
- 数字信号处理中的短时傅里叶变换程序,窗函数长度20, 默认为矩形窗,截取时间间隔 <=Nw/2。适用于时频分析(The present code is sample,you can buy a digital signal processing book that published on Xi'an University of Electronic Science and Technology publisher.)
STFT
- 目前的代码是一个matlab函数,它提供给定信号x[n]的短时傅立叶变换(stft)。该函数是matlab命令“光谱图”的一个替代项。功能输出为: 1)一个具有复杂stft系数的矩阵,该矩阵具有跨列时间和跨行频率; 2)频率矢量; 3)时间矢量。 为了阐明函数的用法,给出了一个示例。为了方便起见,输入和输出参数在函数的开头给出。(The present code is a Matlab function that provides a Short-Time Fourier Transfor