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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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Opt.-Tech.-in-Wireless-Commun
无线通信中的优化技术,原书,通过对现有已运行的网络进行数据分析、现场测试数据采集、参数分析、硬件检查等手段,找出影响网络质量的原因,并且通过参数的修改、网络结构的调整、设备配置的调整和采取某些技术手段。(Optimization of wireless communications technology by Sergiy A. Vorobyov and Yonina C. Eldar, the original book, through the existing network has been in operation for data analysis, field test data acquisition, parameter analysis, hardware checks and other means to identify the factors affecting the quality of the network, and by modifying the parameters of the network structural adjustment, and the adjustment device configured to take certain technical means.)
- 2015-04-07 18:02:49下载
- 积分:1
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offline_rec
最小二乘模型参数离线辨识,解决这类问题的优化计算,可以提高速度,节省时间(Least squares model parameters off-line identification, to resolve such issues to optimize the calculation, you can improve speed, to save time)
- 2007-09-26 10:59:39下载
- 积分:1
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IeeeTransactionsOnWirelessCommunications-Equalizat
描述EDGE系统接收机结构,包括prefilter和均衡器(Description EDGE receiver structure, including the prefilter and the equalizer)
- 2009-03-02 16:10:17下载
- 积分:1
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Dijkstra
Dijkstra最短路算法通用Matlab程序(Dijkstra Matlab )
- 2010-07-19 22:04:59下载
- 积分:1
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2
说明: 都是关于空间普估计算法,其中有解相干和非相干算法以及它们之间的对比( the spatial spectrum estimation)
- 2012-04-25 11:27:41下载
- 积分:1
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MADA
SIMULATION DOUBLY FED MACHINE
- 2014-11-22 06:39:54下载
- 积分:1
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makingJacobian
making jacobian matrix in matlab
- 2011-06-11 15:13:22下载
- 积分:1
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matlab-image-processing-method
介绍关于MATLAB的一些函数基本命令以及常用的处理图像方法(Introduced the MATLAB function basic commands as well as the commonly used image processing method)
- 2013-04-18 19:45:32下载
- 积分:1
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GA
说明: 遗传算法示例源程序遗传算法示例源程序遗传算法示例源程序遗传算法示例源程序(matlab use daima,matlab use daima,matlab use daima,matlab use daimamatlab use daimamatlab use daimamatlab use daimamatlab use daima)
- 2010-06-08 18:27:40下载
- 积分:1