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ImputationSOM
SOM toolbox used as an imputation method
- 2012-07-08 12:28:52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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minmumdemo
以八个锚链受力平衡、力矩平衡为对象,使用Vb调用matlab进行线性最小化计算函数,matlab调用的函数写在m文件中。(To eight anchor the balance of power, torque balance for the object, using Vb call matlab linear function minimization calculations, matlab function calls written in the m file.)
- 2011-07-04 15:19:01下载
- 积分:1
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MatLab
这是清华大学出版社的Matlab工程数学应用丛书。是对MATAB更深层次的应用。(This is the Matlab Tsinghua University Press Mathematics Applied Engineering Series. Is MATAB deeper applications.)
- 2010-10-12 17:53:13下载
- 积分:1
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ais-matlab
说明: 一个用于matlab平台的人工免疫算法程序,可用于各种工程技术方法的仿真分析(A matlab platform for artificial immune algorithm procedure can be used for a variety of engineering and technical methods of simulation analysis)
- 2008-11-14 16:12:42下载
- 积分:1
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tidian
vba, to get point in an autocad
- 2012-07-25 14:26:37下载
- 积分:1
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EntropyWeight
matlab编写的熵权代码,很实用的东西(Entropy matlab code written, very practical things)
- 2013-11-28 22:43:31下载
- 积分:1
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Otsu_zuidaleijian
原创最大类间差分割法 运行效率极高 通过验证 放心使用(The largest difference between the original class of high efficiency of partitioning ease of use through the validation)
- 2010-11-26 10:54:42下载
- 积分:1
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AdaptiveequalizerofLMSalgorithmanditssimulation
自适应均衡器的LMS算法实现及其仿真 :自适应均衡器已广泛应用于通信、雷达、声纳、控制和生物医学工程等许多领域,为克服多径衰落和信道失真
引起的码间干扰,实时跟踪移动通信信道的时变特性,笔者设计了一个基于LMS 算法的自适应线性均衡器,并通过改变步
长因子Δ来分析其收敛速度和均方误差特性.(Adaptive equalizer of LMS algorithm and its simulation)
- 2009-05-25 00:38:03下载
- 积分:1
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LFYBUS
this code is used to form the ybus admittance matrix of a power system
- 2013-07-27 18:56:49下载
- 积分:1