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BlockShrink
The code performs the Neighblock wavelet thresholding method for image denoising
- 2011-01-31 16:58:43下载
- 积分:1
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mem
提供memeory的说明和支持。并提供EPLD的说明CODE(Provide memeory instructions and support. And provide a description of EPLD CODE)
- 2013-07-30 19:02:42下载
- 积分:1
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fxlms
FXLMS method for adaptive filtering
- 2013-04-26 19:02:55下载
- 积分:1
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wavelet
小波变换用计算机的快速实现,采用MATLAB计算工具(Wavelet transform fast to achieve using the computer,Using MATLAB calculation tool)
- 2012-04-29 23:41:47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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ofdm2
ofdm基本功能,可以展示ofdm的基本功能图形并茂。(that is a foundamental techology)
- 2013-12-03 14:59:07下载
- 积分:1
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仿真
说明: 几个基阵信号处理的源程序,供大家参考学习。(array signal processing of the source, for your reference study.)
- 2005-09-12 23:33:32下载
- 积分:1
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DS-and-matlab
直扩频通信中的伪码仿真及其matlab仿真(Direct Spread Spectrum Simulation and matlab simulation of pseudo code)
- 2011-05-31 11:13:21下载
- 积分:1
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fc
说明: 这是个关于软件方程的运行代码,很简单,有需要的朋友可以下载看下,对你或许有帮助。(This is the operation code of the software equation is very simple, a friend in need can be downloaded to look, you may have to help.)
- 2012-05-28 08:48:09下载
- 积分:1
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templateMatcher
利用logGabor函数分别提取待匹配图和模板图的相位信息作为匹配基元,进行互相关运算,寻找最佳匹配位置(Use to be extracted separately logGabor function map and template matching of the phase diagram as an information matching primitives to carry out cross-correlation calculation, find the best match position)
- 2009-03-19 16:34:53下载
- 积分:1