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eye_diagramqpsk_code
matlab code for generating eye diagram for qpsk
- 2010-07-22 20:00:22下载
- 积分:1
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facerec_PCA
Face recogination using PCA in matlab
- 2014-10-15 14:41:06下载
- 积分:1
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Fouriertransform
用振幅为0.8的方波进行傅立叶分析,并用分析得到的系数求解当K取不同值时的合成信号( F = FOURIER(f) is the Fourier transform of the sym scalar f with default independent variable x. The default return is a function of w.
This example is useful for the persons who learn sth about signal processing.)
- 2009-11-15 01:23:14下载
- 积分:1
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optics
optics算法 [RD,CD,order]=optics(x,k); Aim: Ordering objects of a data set to obtain the clustering structure
Input: x - data set (m,n) m-objects 对象数, n-variables 变量数
k - number of objects in a neighborhood of the selected object(OPTICS Ordering Points To Identify the Clustering Structure)
- 2012-07-17 22:49:29下载
- 积分:1
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cauc
有限元差分解偏微分方程的函数,能设置初值,边界值(Difference solution of partial differential equations finite element function can set the initial value, boundary value)
- 2013-09-22 16:59:36下载
- 积分:1
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Three-stochastic-resonance-systems
传统随机共振系统,移频随机共振系统,移频-变尺度随机共振系统,柔性随机共振系统(Traditional stochastic resonance systems, stochastic resonance frequency shift, frequency shift- variable scale stochastic resonance systems, a flexible system of stochastic resonance)
- 2020-12-03 22:49:25下载
- 积分:1
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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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CFO_estimation
Carrier frequency offset estimation
- 2013-07-10 18:40:07下载
- 积分:1
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mesh_gen
生成环形有限元网格,可改变网格系数程度,可用于达特茅斯NIRFAST软件包。(gengerates ring-shape finite element mesh with variable mesh density,applicable to NIRFAST by Dartmouth.)
- 2012-05-16 23:50:36下载
- 积分:1
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vad
基于短时能量和短时平均过零率的端点检 (Based on the average short-term energy and zero-rate short-term endpoint detection)
- 2014-10-18 20:52:37下载
- 积分:1