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decodeBitFlip
ldpc bit flipping decoding in matlab
- 2009-11-09 21:35:02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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torque_speed_curve
This file consists the torque vs speed characteristics of induction motor
- 2013-10-02 00:10:37下载
- 积分:1
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Matlabbased
基于matlab的车牌定位和分割,能够良好的分割和定位汽车车牌(Matlab-based license plate location and segmentation, to a good vehicle license plate segmentation and positioning)
- 2009-05-15 20:12:07下载
- 积分:1
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FSK-MATLAB
说明: 基于matlab的fsk调制的代码,可以实现仿真(it s fsk)
- 2011-04-08 19:27:18下载
- 积分:1
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Fast-Total-Variation-Deconvolution-Package
Fast Total Variation Deconvolution Package
- 2013-07-27 17:34:37下载
- 积分:1
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LICENSE-PLATE_1_final
This program will detect the license plate region with segmentation and extraction and recognition
- 2014-02-20 19:11:05下载
- 积分:1
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矢量控制
在Simulink平台上进行异步电机的矢量控制。(Vector control of asynchronous motor on Simulink platform.)
- 2017-07-28 11:39:05下载
- 积分:1
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RLS
RLSs算法的源程序,以及在MATLAB下的仿真结果。(matlab)
- 2009-11-01 18:11:24下载
- 积分:1
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MATLAB_LMS2
自适应滤波器LMS算法的误差曲线和误差平方曲线,并在等高线上绘出LMS100次迭代的平均轨迹曲线,配合数字信号处理2课程的学习(LMS adaptive filter algorithm and error squared error curve curve and contour line drawing LMS100 iterations the average trajectory curve, with 2 digital signal processing courses)
- 2008-04-25 10:00:50下载
- 积分:1