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11下载:
短时分数阶傅里叶变换的Matlab子函数-short time fractional fourier transform
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一种自适应时间频率分析工具包,和它的中文手册。 内核程序是写在c++中,GUI是matlab函数。 时间频率分辨率远高于短期的傅里叶变换。-An adaptive time frequency analysis toolkit, and its Chinese manual. The kernel program is written in GUI, c++ is a matlab function. The time frequency resolution is much higher th
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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
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令 ,w(n)为高斯窗函数。试用matlab软件,取不同长度的窗函数,分别求x(n)的离散短时傅里叶变换,并进行信号重构。试讨论窗函数长度对时频分辨率、重构精度的影响。-Order, w (n) is Gaussian window function. Try matlab software, takes a different length of the window function, respectively, find x (n) short-time discrete Fourier
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MATLAB实现短时傅里叶变换,短时傅里叶逆变换。直接配置好参数就可以用,实用性强。(MATLAB implementation of short time Fourier transform, short time Fourier inverse transform. Direct configuration of parameters can be used, practically.)
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利用Matlab语言编写,高斯窗实现,进行滤波处理,以及用于后续短时傅里叶变换(It is written in Matlab language, implemented by Gauss window, filtered, and used for short time Fourier transform.)
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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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1下载:
一种新的瞬时频率估计方法,用到了同步压缩短时傅里叶变换的高阶形式(This MATLAB package is a collection of scr ipts allowing to generate figures in the paper [1]. This paper puts forward a generalization of the short-time Fourier-based Synchrosqueezing Transform using a new local esti
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2下载:
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
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