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winnerfilter
维纳滤波器的函数调用,实现界面化操作,函数实现了简单的模糊与解模糊操作(Wiener filter function call, the realization of the interface of the operation)
- 2009-05-03 15:01:44下载
- 积分:1
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imagefusion
图像图像的多聚焦融合,既两幅图片不同焦距的融合(used in imagefusion)
- 2011-04-22 11:22:50下载
- 积分:1
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first-2
hi matlab code for this document
- 2013-03-23 16:22:31下载
- 积分:1
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insfre
自己写的瞬时频率计算发放及自相关(互相关)matlab程序(Write their own instantaneous frequency calculation, distribution and autocorrelation (cross-correlation) matlab program)
- 2021-03-05 20:59:30下载
- 积分:1
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cn
说明: source code for rotation invatiant feature extraction
- 2010-09-01 21:07:44下载
- 积分:1
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Matlab_accessory_parameter
Matlab经典算法__退火问题accessory_parameter
(__ Annealing algorithm Matlab classic problem accessory_parameter)
- 2008-04-04 12:52:11下载
- 积分:1
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ccc
自由电子在沿x轴的震荡电路中的运动问题,希望对大家有用(The free electrons in the movement along the x axis of the oscillation circuit in)
- 2013-01-03 20:56:33下载
- 积分:1
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simstruc
simulink应用实例,基于MATLAB6.5系列(Simulink application examples, based on a series of MATLAB6.5)
- 2007-05-04 09:45:28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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sp_decoder
sp decoder for hamming codes
- 2010-11-21 01:58:39下载
- 积分:1