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EmbeddedSystemLab_OpalRT
A hex file extremely useful for all
- 2012-09-05 16:40:58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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yuyin
matlab GUI串口通信，实时采集数据，曲线显示，接收和发送数据(matlab GUI serial communication, real-time data collection, curve display, receiving and sending data)
- 2016-05-19 14:57:33下载
- 积分：1
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toolbox_nlmeans
filtre d image sur mathlab
- 2009-06-18 04:11:06下载
- 积分：1
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face-towards-the-identification
LVQ神经网络的预测——人脸朝向识别matlab源代码(LVQ neural network prediction- face towards the recognition matlab source code)
- 2013-07-11 09:27:55下载
- 积分：1
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ECG
This project is used to eleminate the noise in the E.C.G wave form using wavelet transform. thecode is written by using matlab scripting.
- 2009-10-03 21:59:35下载
- 积分：1
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NN_DESIGN(code)
Source for the book of Neural Network Design by Martin T. Hagan
- 2009-07-16 20:56:09下载
- 积分：1
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HAMConstructionfilesforCOMSOLwithMatLabzip
说明： HAM构建文件，基于matlab的comsol程序文件。(HAMConstructionfilesforCOMSOLwithMatLab)
- 2010-03-24 15:18:18下载
- 积分：1
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rddata
matlab读取心电信号的程序，注意修改数据路径。(The program which is load on the datas of ECG，Please pay attention to the road of the ECG datas。The ECG datas are collect from the MIT center。)
- 2011-08-29 14:22:15下载
- 积分：1
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diode
常用二极管的七种用法，里面有详细的介绍和分析。(Seven kinds of usage about diode，there is a detailed introduction and analysis.)
- 2013-10-31 20:21:13下载
- 积分：1
