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hoffuman
it is the source code of the hoffuman,a simple source program whice is used in class.
- 2012-03-22 10:39:22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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_chow_adaptive_OFDM_a
OFDM资源分配中经典的Chow算法,包含完整的仿真代码和仿真图形。(OFDM resource allocation in the classic Chow algorithm, including the complete simulation code and simulation graphics.)
- 2016-01-12 16:18:15下载
- 积分:1
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D_alogo_matlab
D算法求最短路径利用matlab解决
输出S矩阵和行向量(Dijkstra algorithm)
- 2013-09-11 20:53:19下载
- 积分:1
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ellipse_single
一般情况下,ellipse函数只能实现尺度较小的椭圆模拟,次程序实现长短轴较大且椭圆中心在任意象限情况下的椭圆模拟函数(for the semi-major and semi-minor ellipse simulation)
- 2012-01-06 15:42:21下载
- 积分:1
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ChannelCapacity
信道容量的迭代算法,使信道能够无失真地传输信源数据(Channel capacity iterative algorithm,so that the channel can be transmitted without distortion source data)
- 2014-02-21 10:17:08下载
- 积分:1
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ssbm
算术编码,matlab实现编码与译码,而且不考虑其精度(Arithmetic coding, matlab coding and decoding achieve, and do not take into account their accuracy)
- 2010-06-10 15:30:56下载
- 积分:1
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matlab2
说明: matlab求解常微分方程在机械设计中的应用(matlab solving ordinary differential equations in mechanical design)
- 2008-11-23 14:23:45下载
- 积分:1
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examPIO
This work describes the design of a polytopic Unknown Input Observer (UIO) for polytopic Linear Varying Parameter (LPV) descriptor systems. I simulate the example.
- 2013-01-28 23:43:27下载
- 积分:1
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floyd2
最短路分配方法流程图的matlab编码(全有全无配流法)(The shortest path distribution method)
- 2015-04-12 23:23:12下载
- 积分:1