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matlabSTFT
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短时傅里叶变换实现线性调频信号的时频分析(Time-frequency analysis of LFM signal by short time Fourier transform)
Update : 2024-05-03 Size : 10240 Publisher : 淡定给谁看啊

1. 构造含噪音的振动信号 faultysignal_with_noise, 2. 利用小波变换 Wavelet transform去噪,小波包 Wavelet packet transform 变换去噪, 3. 把两种去噪后的信号,分别用STFT ,FFT ,小波变换三种方法进行错误诊断(1. the vibration signal faultysignal_with_noise, which contains noise, is constructed. 2. using wavelet transform Wavelet transform denoising, wavelet packet Wavelet packet transform transform de-noising, 3. the two kinds of denoising signals are diagnosed by three methods, STFT, FFT and wavelet transform respectively.)
Update : 2024-05-03 Size : 3072 Publisher : malvina

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时频分析的工具包,里面有很多的时频分析源代码,包括滤波器,短时傅里叶,Gabor(Time frequency analysis toolkit, there are a lot of time frequency analysis source code, including filter, stft, Gabor)
Update : 2024-05-03 Size : 546816 Publisher : 做一只安静的程序猿

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一个短时傅里叶变换程序,内含说明,便于初学者应用(A short time Fourier transform program, containing instructions, for beginners.)
Update : 2024-05-03 Size : 1024 Publisher : maoxx

matlabSTFT
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内含详细中文说明的短时傅里叶变换程序,便于初学者应用(The short time Fourier transform program with detailed Chinese instructions is convenient for beginners.)
Update : 2024-05-03 Size : 4096 Publisher : maoxx

实现信号的短时傅里叶变换(STFT),很好理解,值得下载学习(Short time Fourier transform (STFT) for realizing signal)
Update : 2024-05-03 Size : 68608 Publisher : AIGANG

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《matlab信号处理》一书的配套源码,matlab信号处理例程,包括fft,stft,wv,小波,时频分析,等("MATLAB signal processing" book supporting source code, MATLAB signal processing routines, including FFT, STFT, WV, wavelet, time-frequency analysis, etc.)
Update : 2024-05-03 Size : 126976 Publisher : 锋回路转1218

这是在MATLAB上的DUET算法,实现欠定盲源分离。(This is a simulation of DUET Algorithm on MATLAB. * Although the inverse STFT function doesn't work properly, the rest of it works totally fine. * Fixed by moving the line: row=zeros(1,length(x1)+2*windowsize);)
Update : 2024-05-03 Size : 3072 Publisher : 正文

matlabstft
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常见的时频分析技术短时傅里叶变换实现举例,以及一些使用示例(Common time - frequency analysis techniques short - term Fourier transform implementation examples, as well as some use examples)
Update : 2024-05-03 Size : 1024 Publisher : jingyue

法国中央科学研究院和美国RICE大学共同开发了时频分析工具箱(matlab emd) 是一款非常好用的时频分析计算工具,它是分析时变非平稳信号的有力工具,matlab 时频分析工具箱提供了时间域与频率域的联合分布信息,清楚地描述了信号频率随时间变化的关系。 其中主要含有四种函数: 信号产生函数,可以产生不停类型的信号,如Chirp信号,bpsk信号等。 时频分析函数,可以计算线性、Cohen类、仿射类非线性分析值函数,例如短时傅里叶变换(STFT),Gabor变换,谱图,Wigner-Ville(WVD)等。 分析处理函数 图形显示函数,如等高线、三维图等。(Time-frequency analysis toolbox)
Update : 2024-05-03 Size : 2322432 Publisher : 伪装者2

短时傅里叶变换方法,用于超声信号时频分析
Update : 2019-08-23 Size : 1170 Publisher : liuqi_xi@163.com

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以長方形為遮罩的短時頻傅立葉轉換,英文稱為rectangular short time fourier transform(A short time fourier transform with a rectangular mask function. aka recSTFT)
Update : 2024-05-03 Size : 1024 Publisher : 銘銘1258

Time Frequency Toolbox matlab时频分析工具箱,里面有各种时频分析函数,用matlab实现的,小波变换,Gabor变化,短时傅里叶变换等等(AF Ambiguity function AR Auto-regressive (filter or model) ASK Amplitude shift keyed signal BJD Born-Jordan distribution BPSK Binary phase shift keyed signal BUD Butterworth distribution CWD Choi-Williams distribution FM Frequency modulation FSK Frequency shift keyed signal GRD Generalized rectangular distribution HT Hough transform MHD Margenau-Hill distribution MHSD Margenau-Hill-Spectrogram distribution MMCE Minimum mean cross-entropy NAF Narrow-band ambiguity function PMHD Pseudo Margenau-Hill distribution PWVD Pseudo Wigner-Ville distribution QPSK Quaternary phase shift keyed signal RID Reduced interference distribution STFT Short-time Fourier transform TFR Time-frequency representation WAF Wide-band ambiguity function WVD Wigner-Ville distribution ZAM Zhao-Atlas-Marks distribution)
Update : 2024-05-03 Size : 306176 Publisher : fisher86

Otherstft
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matlab实现短时傅里叶变换的程序源码,自带例子,十分简单易懂,可以做时频谱分析。(Matlab short-time Fourier transform program source code, with examples, very simple to understand, can do time-frequency spectrum analysis.)
Update : 2024-05-03 Size : 154624 Publisher : 我不太会哄

最新的时频分析工具箱,提供wvd stft等经典时频变换的源码
Update : 2021-10-30 Size : 2084352 Publisher : qscqzp

有完整的时频分析函数,包括短时傅里叶变换函数,魏格纳函数,STFT,WD,WVD,SWVD,SPWVD等
Update : 2022-08-16 Size : 857521 Publisher : 212338672@qq.com
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