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1
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 11:26:45下载
- 积分:1
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mymusic
基于matlab的MUSIC及解相干MUSIC算法(MUSIC MUSIC and coherent solution algorithm based on the matlab)
- 2014-08-06 22:32:26下载
- 积分:1
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vqsplit
vector quantization split algorithm for matlab source code function
- 2013-03-15 20:16:22下载
- 积分:1
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DSPII_USTC_01
传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能:
1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线;
2) 给出了最陡下降法以及LMS算法的计算公式;
3) 用MATLAB产生了方差为0.05, 均值为0白噪音S(n),并画出某次采样得到的波形;
4) 根据 2)中的公式,并利用 3)中产生的S(n),在 1)中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线;
5)用MATLAB计算并画出了LMS法时误差随时间n的变化曲线(对应S(n)的某一次的一次实现)和e(n)波形;
6)在 1)中的误差性能曲面的等值曲线上,叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线;
7)最终对结果进行了分析,具体见压缩包的word文档。
(Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:
A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve
2 ) gives the steepest descent method and the LMS algorithm formula
3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform
4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)
- 2013-11-06 13:12:36下载
- 积分:1
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energy
This code may be useful for sensing spectrum in cognitive radio
- 2014-03-12 14:50:07下载
- 积分:1
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06005941
多个访问性能epeated-permutation MPPM与干扰避免(Multiple Access Performance for Repeated-permutation MPPM with Interference Avoidance)
- 2013-10-26 06:06:30下载
- 积分:1
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pline
用4种方法绘出螺旋曲线上升的动态效果
x=cos(t)
y=sin(t)
z=t(Plotted using four methods increased the dynamic effect of the spiral curve x = cos (t) y = sin (t) z = t)
- 2012-11-15 22:17:35下载
- 积分:1
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lms_eml
自适应滤波LMS demo,适合初学者学习自适应滤波理论(Adaptive filtering demo, suitable for beginners to learn adaptive filter theory)
- 2009-06-26 09:58:37下载
- 积分:1
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Attractor
Attractor Reconstruction With Matlab
- 2010-02-12 17:22:17下载
- 积分:1
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New-Folder-(3)
it is the program for rls algorithm for a sound wave
- 2011-07-24 00:43:05下载
- 积分:1