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speechprocessing
- 语音处理软件, GUI 界面,本人原创,频域,时域,可以看波形,WINDOW FUNCTION, 录音,
sft_wt.rar
- 给定函数,变换到频域内,比较短时傅里叶变换大、小视窗和小波变换的区别,生成时频分析图,A given function, transform the frequency domain, more short-time Fourier transform, and a small window and the difference between wavelet transform to generate time-frequency analysis
qwet1234
- 在 MATLAB 中的窗函数,十分简单: 矩形窗 三角窗 汉宁窗 海明窗 布拉克曼窗 恺撒窗 -In MATLAB, the window function is very simple: a rectangular window of triangular windows Hanning Hamming Blackman Window Caesar Window
pingpu
- 本程序是学习数字信号分析的基础程序。其中对窗函数的理解对以后学习小波分析很有用。-This procedure is the basis for learning digital signal analysis procedures. Understanding of the window function which after learning of the wavelet analysis is useful.
Wavelet-Analysis
- 对于非平稳信号的分析不能依靠傅里叶变换,但可以采用时频分析的方法,其中加窗傅里叶变换是最简单的一种。但是,它有很大的局限性:当基本窗函数一旦取定,窗口的时窗宽度和频窗宽度就固定了,不会随时域和频域的位移而变化。-For non-stationary signal analysis can not rely on Fourier transform, but you can use time-frequency analysis method, in which the windowed Four
windowfunc
- 利用窗函数设计低通滤波器,使其通带为1MHZ,阻带为小于40dB。-Using window function to design the low-pass filter, its passband is 1MHZ and stopband is less than 40dB.
fft_bpfilter
- 该函数使用matlab对运动情况下的心电信号做快速傅里叶变换,并加汉宁窗函数进行滤波-The function uses Matlab ECG movement fast Fourier transform, Hanning window function filtering
kaywing-windows-and-IIR-filter
- 实现各种典型窗函数的时域与频域特性、已知滤波器条件设计巴特沃思等滤波器、或已知系统函数可求出数字滤波器。-Achieve a variety of typical window function in time domain and frequency domain characteristics, known design Butterworth filter criteria such as filters, or known to the system function can be ob
kaisachuangkoubutongzhibijiao
- 脉冲压技术中需要用到加权窗函数,凯泽窗口是常用的加权窗函数。-Pulse compression techniques need to use a weighted window function, Kaiser window is commonly used weighting window function.
butongchuanghansufeiji
- 不同的窗口加权函数得到的雷达成像效果不同,在此进行对比。-Different effects of different radar imaging window weighting function obtained in this comparison.
Untitled4
- 窗函数滤波器-Window function filter
low-pass-filter
- 使用fir1函数实现低通滤波器,使用了hamming窗来实现的-Design of low pass filter using fir1 function and Hamming window
matlab小波变换程序
- 小波变换(wavelet transform,WT)是一种新的变换分析方法,它继承和发展了短时傅立叶变换局部化的思想,同时又克服了窗口大小不随频率变化等缺点,能够提供一个随频率改变的"时间-频率"窗口,是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征,能对时间(空间)频率的局部化分析,通过伸缩平移运算对信号(函数)逐步进行多尺度细化,最终达到高频处时间细分,低频处频率细分,能自动适应时频信号分析的要求,从而可聚焦到信号的任意细节,解决了