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Transactions-Industrial-Electronics
IEEE papers for wind energy
- 2014-09-10 20:06:59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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50Matlab
这是一本典型的matlab习题,很实用,他包含了matlab的大部分命令(This is a typical matlab exercises, it is practical, he includes most of the command matlab)
- 2007-10-08 22:15:47下载
- 积分:1
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SpaceEnhance
此程序为matlab的关于空间增强的一段代码,已经用于开发的软件中(This process is enhanced matlab on a piece of code space has been used to develop the software)
- 2010-08-23 22:11:40下载
- 积分:1
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amdf
说明: 语音识别全过程的matlab程序,运行测试能出结果,希望对你们有用,实在没点数才把自己压箱底的东西拿出来,呜呜(The whole process of speech recognition matlab program, run the test to the result, I hope helpful for you, only then it did not point out what their own bottom pressure, the hum)
- 2011-03-08 11:27:22下载
- 积分:1
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LISQ
用于图像处理中的图像融合的一些代码,对于不同图像处理的结果融合效果不错(lsq)
- 2010-05-14 16:52:54下载
- 积分:1
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FastICA5
很好用的FastICA工具箱,以及使用攻略,非常容易入手学习。(Good use of FastICA toolbox, and the use of the Raiders, very easy to start learning.)
- 2014-08-28 09:14:49下载
- 积分:1
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fenchan
自己写的matlab小程序,用于解线性方程的根。可以参考下(Their own small programs written in matlab for solving linear equations of the root. Can refer to)
- 2011-09-27 10:16:16下载
- 积分:1
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read_data_from_txt
this function is used for reading data from txt file
- 2013-04-10 21:04:16下载
- 积分:1
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shibie
使用高阶累积量完成单载波和OFDM信号的的识别,对不同信噪比情况下进行了仿真,有不错的效果(Using higher order cumulants to complete the identification of single carrier signal and OFDM signal, the simulation of different signal-to-noise ratio, has a good effect)
- 2016-04-07 00:00:26下载
- 积分:1