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Description: 基于matlab的短时傅立叶变换，有语音读取功能！
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Size: 811 |
Author: wenhu |
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Description: 本文中对多种窗函数和一种窗函数不同参数的STFT进行MATLAB仿真，选择合适的窗函数和参数估计会在跳频信号中取得很好的效果
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Author: zhangsc09@126.com |
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Description: 信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。-signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non- parametric model b
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Size: 101376 |
Author: james |
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Description: STFT相关函数，包含了源代码，说明和简单的例子。-STFT related functions, including the source code, descriptions and simple examples.
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Size: 590848 |
Author: lideling |
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Description: 经验模式分解程序（简称EMD），在某些情况下比WAVELET TRANSFORM 和STFT分析效果要好，就是计算很费时间！-Empirical Mode Decomposition (EMD), In some cases than WAVELET TRANSFORM STFT analysis and better results. Computing is a great time!
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Size: 524288 |
Author: 张勇 |
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Description: 短时傅立叶变换的几种形式
MATLAB代码，估计会对学习有所帮助
大家请下载-Short-time Fourier transform of several forms MATLAB code, it is estimated that learning will help you download
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Size: 60416 |
Author: 马雪飞 |
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Description: matlab时频工具箱！！ 各种时频变换，频谱分析的工具箱-Time-frequency toolbox matlab! ! A variety of time-frequency transform, spectral analysis toolbox
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Size: 1979392 |
Author: 王鹏 |
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Description: 用MATLAB程序实现gabor变换，调试过，可以用。-MATLAB program using gabor transform, debugging, and can be used.
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Size: 3072 |
Author: yuzhun21 |
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Description: 用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图
2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选
3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱
4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图
-Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their respective time-domain waveform of Figure 2. FFT to transform, showing their frequency spectrum, including sampling rate, frequency, data length of 3-on-demand. Make the rms signal of the three maps, power maps, as well as the number of root-mean-square map 4. Fourier Transform IFFT with the restoration of signals, and displays the sinusoidal signal the resumption of time-domain waveform
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Size: 1024 |
Author: river |
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Description: 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.
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Size: 1024 |
Author: lichuanhui |
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Description: S-transformer,S 变换是由连续小波变换(CWT)和短时傅里叶变换(STFT)结合发展起来的另一种时频分析方法-S-transformer, S transform is a continuous wavelet transform (CWT) and the short-time Fourier transform (STFT) together with the development of an alternative method of time-frequency analysis
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Size: 4096 |
Author: 陈达壮 |
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Description: STFT 实现短时加窗 傅里叶 变换 分析
可用于跳频时频分析-STFT to achieve short time Fourier transform of windowed time-frequency analysis can be used for frequency hopping
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Size: 1024 |
Author: adolphe |
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Description: 本例介绍了一个利用MATLAB仿真短时傅里叶变换的实例，初学者可以根据此例子来了解短时傅里叶变化的过程，通过仿真图形分析也可理解短时傅里叶变换的含义。-This example describes a short time Fourier transform using MATLAB simulation examples, beginners can understand this example of short-time Fourier transform of the process, through simulation analysis is also understandable graphic short time Fourier transform meaning.
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Size: 18432 |
Author: 赵琳 |
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Description: 短时傅里叶中加各种不同类型的窗来观察窗的形状-Short-time Fourier and Canada all the different types of windows to observe the shape of the window
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Size: 1024 |
Author: junyin |
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Description: 短时傅立叶变换matlab仿真程序（谐波信号）-Short-time Fourier transform matlab simulation program (harmonic signal)
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Size: 1024 |
Author: 朱磊 |
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Description: stft algorithm matlab
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Size: 346112 |
Author: gardon
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Description: 利用Matlab编写的短时傅里叶变换，将时间域信号变换到时频域进行分析(The short-time Fourier transform written in Matlab is used to transform the time domain signal into time-frequency domain.)
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Size: 1024 |
Author: Xiaohuoqiu |
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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: 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 Transform (STFT) of a given signal x[n]. The function is an alternative of the Matlab command spectrogram The output of the function is
1) a matrix with the complex STFT coefficients with time across the columns and frequency across the rows;
2) a frequency vector;
3) a time vector.
An example is given in order to clarify the usage of the function. For convenience, the input and output arguments are given in the beginning of the function.)
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Size: 1024 |
Author: 裤子12345 |
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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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