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ding
选取windows系统自带的ding.wav信号作为分析对象,在Matlab软件平台下,利用函数wavread对音频信号进行采样,记住采样频率和采样点数,听一下原始声音sound(y, fs, bits)。
(2)音频信号的频谱分析,先画出音频信号的时域波形;然后对音频号进行快速傅里叶变换fft(y,N),N取32768,画出信号的频谱特性,加深对频谱特性的理解。
(3)根据频谱,反演时域特性,画出时域波形。寻找幅值最大的两个频率,此频率除以fft点数在乘以采样频率就是信号的主频,即可合成信号的时域图形,听一下声音。
(4)对原音频信号进行1024点的分段付立业分析meshgrid
(5)根据主要频线合成音频,并画出时域图形,试听合成效果。
(6)采用线性插值(linspace)和傅立业反变换(fliplr, ifft)分别合成音频,并画出时域图形,试听效果。
(err)
- 2009-01-13 16:23:47下载
- 积分:1
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Dijkstra
迪杰斯塔拉算法在matlab上的程序。数学建模可以用哦(Stara Dijkstra algorithm in matlab procedures. Oh, mathematical modeling can be used)
- 2013-09-14 16:34:01下载
- 积分:1
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ROBOT-CONTROL
DRROBOT I90的基本應用以及智慧型影像錄相機無線移動系統(The basic application DRROBOT I90, and intelligent video recorder wireless mobile systems)
- 2014-10-23 16:25:30下载
- 积分:1
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adc
first order sigma delta ADC simulink model with spectrum analysis
- 2013-04-22 16:51:03下载
- 积分:1
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ctimages
change detection in images
- 2015-02-06 17:52:28下载
- 积分:1
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denoising-wavelet
改进的小波阈值降噪方法improved wavelet threshold denoising (improved wavelet threshold denoising )
- 2017-03-09 20:27:47下载
- 积分:1
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MATLAB
环境下构建一种新的系统辨识仿真工具箱(SIST: System Identification Toolbox)的原理与实现,讨论了在MATLAB 环境下工具箱的数据和算法结构形式,以及利用GUIDE完成图行界面的设计,用MATLAB 与C++混编技术实现物理系统的I/O 接口和系统辨识... (err)
- 2008-01-21 20:39:23下载
- 积分:1
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Dipole_Matlab
The above matlab code include the simulation of dipole antenna and current distribution using standard algorithm
- 2013-08-15 13:39:42下载
- 积分:1
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psomatlabprograme
一种混沌粒子群算法源程序。并附带几个测试函数。非常实用!(Chaos Particle Swarm Optimization of a source. And attached to several test functions. Very useful!)
- 2008-06-16 20:16:09下载
- 积分:1
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batch-omp
KSVDBox - Implementation of the K-SVD and K-SVD denoise algorithms.(K-SVD dictionary training.
ksvd - K-SVD dictionary training.
Signal denoising.
ompdenoise - OMP denoising.
ompdenoise1 - OMP denoising of 1-D signals.
ompdenoise2 - OMP denoising of 2-D signals.
ompdenoise3 - OMP denoising of 3-D signals.
ksvddenoise - K-SVD denoising.
Overcomplete DCT dictionary.
odctdict - Overcomplete DCT dictionary.
odct2dict - 2-D overcomplete DCT dictionary.
odct3dict - 3-D overcomplete DCT dictionary.
odctndict - Multi-dimensional overcomplete DCT dictionary.
Demonstrations.
ksvddemo - K-SVD training demonstration.
ksvddenoisedemo- K-SVD denoising demonstration.
Miscellaneous.
showdict - Display a dictionary of image patches.
ksvdver - K-SVD toolbox version information.)
- 2014-01-05 18:21:19下载
- 积分:1