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wavelet
说明: 二维图像加噪声,通过小波变换分解,压缩,实现图像重构(Two-dimensional image plus noise, through the Wavelet decomposition, compression, Image reconstruction)
- 2011-03-21 12:45:44下载
- 积分:1
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tang1
用GUI做的图像处理平台一些算法的演示,包括图像去噪图像加密图像编码解码(the tool of image processing)
- 2015-06-17 15:36:01下载
- 积分:1
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RSfenxingformatlab
RS分形算法matlab代码实现,既利用RS方法计算时间序列的分形hurst指数(RS fractal algorithm matlab code, we use RS calculated time series fractal Hurst index)
- 2007-12-11 22:51:39下载
- 积分:1
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dsss
说明: 直接扩频源码,超级有用的哦,呵呵,一定要顶啊。哈哈(spread,very good)
- 2010-04-20 16:50:49下载
- 积分:1
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kalman
kalman filter;matlab implementation(Kalman filter; Matlab implementation)
- 2007-06-30 13:04:35下载
- 积分:1
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desc
最速下降法 求极小值问题的程序示例 其中包含三个函数(Steepest descent procedure for seeking the minimum value problem examples)
- 2009-11-06 12:33:13下载
- 积分:1
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chengxu
包含了多个雷达信号产生的程序,其中有线性调频信号,编码信号,等等(Contains multiple radar signals generated by the program, which chirp signal encoded signals, etc.)
- 2013-01-24 13:51:05下载
- 积分:1
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testgrid2-2014-11-20
test grids for matlab users
- 2015-01-05 21:51:05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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as
说明: 商人过河,三个商人各带一名仆人,船只在二人且当仆人数大于商人就过不了河(Businessmen across the river, each with three businessmen, a servant, and when the servant of two vessels is greater than the number of businessmen have not r.)
- 2010-11-08 12:52:22下载
- 积分:1