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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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FinalOne
amplitude modulation system using simulink matlab
- 2009-05-11 18:32:58下载
- 积分：1
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shiyan4
说明： 产生30行16列的矩阵，每一行代表一路信号，产生32路信号，对32路信号解复用(Produce a matrix of 30 rows 16 columns, each row represents one signal, resulting in 32 signals, the signal demultiplexing 32)
- 2011-03-01 09:39:44下载
- 积分：1
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plot_hht
是希尔伯特黄变换的matlab程序，很有用，尤其对于初学者，有问题可以和我联系，呵呵(it is for easy for the beginner)
- 2012-08-02 09:46:33下载
- 积分：1
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convolution
matlab convolution sample
- 2011-11-21 00:04:51下载
- 积分：1
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Modulation-of-MATLAB-binary
基于MATLAB的二进制数字系统的调制(包括2ask_2fsk_2psk_2dpsk)(Based on the the MATLAB binary digital modulation (including 2ask_2fsk_2psk_2dpsk))
- 2013-05-12 21:10:39下载
- 积分：1
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[caetecc.com]DUNCAN-CHANG
该损伤模型通过
商用有限元软件ABAQUS /Explicit 的用户子程序VUMAT 实现，并使用该模型对碳纤维增强环氧树脂
复合材料层合板在横向低速冲击作用下的损伤和变形行为进行预测分析． 数值仿真的结果与试验结
果进行了比较，吻合良好，验证了该模型的有效性．(Through coding user subroutine VUMAT of finite element software ABAQUS /explicit，
and applied the model to an example，carbon fiber reinforced epoxy composite laminates
under low velocity impact，the prediction for damage and deformation were good agreement
with the experimental results．)
- 2016-04-15 16:44:19下载
- 积分：1
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work1
信号功率谱分析。方法五、六，在此以详细编写。(Signal power spectral analysis. Methods 5, 6, in this case to the elaboration.)
- 2009-10-20 23:06:10下载
- 积分：1
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MSCI703_project
this journal is created by Sachin Jayaswal Student ID: 20186226 Department of Management Sciences
University of Waterloo.
it s describe how performances of tabu search and simulated annealing solve the TSP. this journal includes tabu search and SA matlab code to solve tsp.
- 2010-01-04 11:02:03下载
- 积分：1
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robotbz
本程序模拟一个机器人躲避障碍的仿真.其中有不完善的地方
迫于精力有限,具体过程还有点粗糙,读者可以加以修正
(a simulation of the robot avoid obstacles to the simulation. Which forced the inadequacies in the energy are limited, There is a process in concrete rough, and readers can be amended)
- 2006-10-21 21:32:48下载
- 积分：1
