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Huffman-coding
通信的数字化是它能与计算机技术和数字信号处理技术相结合的基础，而实现通信数字化的前提是信源能提供的各种用于传递的消息，例如语音、图像、数据、文字等都必须以数字化形式表示。而信源编码是数字通信系统中的重要组成部分，他是保证信号有效传输的一种重要方式。霍夫曼编码依据字符出现的概率来构造异字头的平均长度最短的码字，有时称之为最佳编码，其优越的性能被广泛使用在数字通信系统中。霍夫曼编码已经成为数据压缩的灵魂算法。本文介绍了无失真编码算法的构造，霍夫曼编码的规则和特点，同时分析了对信源进行优化的方法，最后通过MATLAB仿真来讨论比较二元霍夫曼编码、三元霍夫曼编码以及信源扩展编码的效率，来实现霍夫曼码的优化构造。(The digital communication is it can and computer technology and digital signal processing technology in combination of the base, and realize the digital communication is the premise of source can provide all kinds of used to deliver news, such as voice, video and data and text must take the digital form said. And the source coding digital communication system is the important component, he is to ensure the effective transmission signal is an important way. Huffman coding based on the probability of characters appear to construct different "the average length of the shortest code words, sometimes called the best coding, superior performance is widely used in digital communication system. Huffman coding has become the soul of data compression algorithm. This paper introduces the structure of the encoding algorithm without distortion, Huffman coding rules and characteristics, and analysis of the source of the optimization method, and finally by MATLAB simulation to discuss compares two yu)
- 2012-05-25 23:06:35下载
- 积分：1
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Pattern-Classification.pdf
R. Duda, P. Hart, D. Stork, Pattern Classification, 2nd Ed., John Wiley and Sons, 2001.
- 2014-10-10 23:46:10下载
- 积分：1
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S229_Boost_01
电力电子DC-DC变换---Boost升压斩波器MATLAB仿真(Power electronics, DC-DC straight converter- Boost chopper MATLAB/Simulink simulation files)
- 2012-03-15 19:31:32下载
- 积分：1
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fir
FIR滤波器的频率抽样法,对照胡广书教师的教材例子进行了实现(FIR filter frequency sampling method,according to the example of Hu Guangshu s book《Digital Signal Processing》)
- 2010-10-14 22:19:51下载
- 积分：1
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Lyapnov_wolf
说明： 计算时间序列的李雅普诺夫指数的著名wolf算法，比较经典与精简，适合物理专业配合所求解得非线性方程使用(Calculation of time series of well-known Lyapunov exponent wolf algorithm, compared with the streamlining of the classic, suitable for solving physics with the use of a non-linear equation)
- 2009-07-26 02:14:16下载
- 积分：1
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xuanzhuan2012
实现坐标点的旋转，先将坐标移到以坐标系原点为圆心的坐标系中。(To achieve the rotation of the coordinate points。)
- 2012-03-28 11:40:05下载
- 积分：1
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MELCEPST
MATLAB下计算Mel倒谱的函数，在语音特征提取方面常用(Mel cepstrum calculated under MATLAB functions used in the speech feature extraction)
- 2010-05-31 14:24:38下载
- 积分：1
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soundprocessing
基于matlab对语音信号进行频谱分析，加入高斯噪声，再使用FIR高通、巴特沃斯低通、FIR带通滤波器进行滤波处理(Spectral analysis of the speech signal, adding Gaussian noise, and then use high-pass, low pass, band pass filter for filtering)
- 2011-07-20 15:28:32下载
- 积分：1
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flyback
基于saber仿真软件,是对反激变换器仿真设计的。(Flyback converter design saber-based simulation software)
- 2014-11-28 21:17:42下载
- 积分：1
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mat2octandback.tar
the program based on particle filter for a new algorithm, Integrated Bayesian MCMC Model Selection MONTE CARLO that Ma Erkefu chain
- 2013-04-17 05:11:25下载
- 积分：1
