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juanji_example
matlab实现卷积码,viterbi译码,总结了常用的卷积码编码多项式,以及完整的仿真程序(matlab convolutional codes, viterbi decoding, summed used polynomial convolution coding, as well as a complete simulation program)
- 2013-01-05 21:46:41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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OFDM
OFDM matlab调制与解调仿真,信号及其频谱(The OFDM matlab modulation and demodulation simulation, signal and its spectrum)
- 2012-11-21 21:38:23下载
- 积分:1
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word_find
英文词频统计,单复数算一个单词,大小写算一个单词(word frequency find)
- 2014-11-29 15:33:34下载
- 积分:1
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MATLAB
matlab入门书籍,好好学习,将来一定会有用处的。(Matlab entry books, study well, in the future will be useful.
)
- 2012-10-01 14:24:45下载
- 积分:1
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Matlab_Codes
该代码是书籍源码,是matlab的书的源代码,里面是算法实例,(The source code is the book, the book is the matlab source code, which is the algorithm instance,)
- 2010-11-23 13:57:49下载
- 积分:1
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MASK
MASK调制信号MATLAB仿真程序,由希尔伯特变换提取调制信号的瞬时信息(MASK MATLAB HILBERT)
- 2020-12-02 22:39:28下载
- 积分:1
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BoDeTu
MATLAB编的bode图,可直接运行,只需要将此文件放在英文路径或者硬盘根目录下运行即可。(MATLAB series of bode diagram can be run directly, just this file on the English path or the root directory of the hard drive can be run.)
- 2016-11-09 19:21:24下载
- 积分:1
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nearestneighbouralgorithm
模式识别中的最近邻算法用matlab实现,简单易懂,并做了实验,用图像表示聚类结果。(The nearest neighbor algorithm for pattern recognition with matlab implementation, simple to understand, and do the experiment, with images that clustering results.)
- 2010-06-18 13:31:41下载
- 积分:1
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LASIP_cfai
The LASIP routines for Color Filter Array Interpolation based on LPA-ICI:
- CFAI for noiseless data
- adaptation for noisy data
- CFAI for noisy data based on directional cross-color filters.
- 2010-01-08 16:11:20下载
- 积分:1