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Description: 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)
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Size: 10240 |
Author: 淡定给谁看啊 |
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Description: 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.)
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Size: 3072 |
Author: malvina |
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Description: 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)
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Size: 546816 |
Author: 做一只安静的程序猿 |
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Description: 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.)
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Size: 1024 |
Author: maoxx |
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Description: 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.)
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Size: 4096 |
Author: maoxx |
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Description: 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)
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Size: 68608 |
Author: AIGANG |
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Description: 《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.)
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Size: 126976 |
Author: 锋回路转1218 |
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Description: 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);)
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Size: 3072 |
Author: 正文 |
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Description: 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)
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Size: 1024 |
Author: jingyue |
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Description: 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)
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Size: 2322432 |
Author: 伪装者2 |
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Description: 短时傅里叶变换方法，用于超声信号时频分析
Platform: |
Size: 1170 |
Author: liuqi_xi@163.com |
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Description: 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)
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Size: 1024 |
Author: 銘銘1258 |
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Description: 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)
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Size: 306176 |
Author: fisher86 |
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Description: 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.)
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Size: 154624 |
Author: 我不太会哄 |
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Description: 最新的时频分析工具箱，提供wvd stft等经典时频变换的源码
Platform: |
Size: 2084352 |
Author: qscqzp |
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Description: 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
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Size: 857521 |
Author: 212338672@qq.com |
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