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Untitled-2
Amplitude modulation
- 2015-02-20 13:46:26下载
- 积分：1
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ceshi
基于Matlab的CDMA通信系统下行信道的仿真_张兵(CDMA communication system simulation
)
- 2015-04-08 09:12:56下载
- 积分：1
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embedding
this code can embedding a watermark in an image
- 2013-05-25 22:44:36下载
- 积分：1
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Threshold111
matlab 图像二值化程序，可以实现自动取得阈值(image matlab)
- 2009-05-23 22:09:37下载
- 积分：1
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Turbomat
一个实现turbo码的编码和解码，是一个递归卷积码的编解码的程序源码。(A turbo code to achieve the encoding and decoding, is a recursive convolutional encoding and decoding of the program source code.)
- 2010-12-15 21:18:23下载
- 积分：1
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toolbox_sparsity
一个很有用的基于稀疏的信号处理工具箱，包含有多种算法。(a useful toolbox based on sparse signal processing )
- 2013-02-05 01:11:42下载
- 积分：1
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HDB3decoding
数字基带信号的传输是数字通信系统的重要组成部分。在数字通信中，有些场合可不经过载波调制和解调过程，而对基带信号进行直接传输。HDB3码的作用是对数字基带信号进行编码，便于在接收端对定时分量的提取。(Digital baseband signal transmission is an important part of digital communication system. In digital communication, some occasions without carrier modulation and demodulation process, and to direct transmission baseband signal. HDB3 code is used to encode digital baseband signal, facilitate at the receiving end of timing component extraction.
)
- 2013-03-17 20:28:49下载
- 积分：1
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WordRecognition
Recognition of the word
- 2010-06-26 19:05:12下载
- 积分：1
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ofdm
摘要:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情
况下,保护时隙(CP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保
护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。
(O FDM is the key techno logy of 4G in the field of mobile comm unication.In this article O FDM
ba sic p rinc ip le is briefly in troduced.Then,the influence of CP and d iffe rent channe l e stim a tion on the system
pe rfo rm ance is emp ha tica lly analyzed respectively in Gauss and R ayle igh fading channe ls in the cond ition of ideal
synchronization.B e sides,based on the given system mode l O FDM system is compu te r sim u la ted w ith MA TLAB
language and the refe rentia l design p rocedure is given.Fina lly,the B ER cu rves of CP and channe l e stim ation a re
given and comp ared.The conclusion is sa tisfac to ry.
)
- 2009-06-01 16:10:00下载
- 积分：1
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Backtracking
利用回溯法来求解凸函数的最优值。采用非精确线性搜索，利用最少的迭代次数找到最优值。(backtracking method，change the step size in searching procesure and finally find the optimizaiton points. )
- 2011-09-16 23:38:17下载
- 积分：1
