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m_PN
说明: 伪随机码或称PN码,是扩频通信中不可缺少的一种序列。扩频通信,简单的说来就是通过一组相关性很强的伪随机序列,使原有的信号按照伪随机序列的特性出现。从波形上看,原有信号完全淹没于随机的噪声中,达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列,就可以通过伪随机序列很强的相关性将信号还原出来。而m序列,是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码,通过改变初始多项式的值,就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)
- 2009-08-10 22:39:52下载
- 积分:1
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Histogram
histogram equalization
- 2010-07-08 16:32:15下载
- 积分:1
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demodulation
这是gsm解调模块的matlab仿真,提供给各位学习和参考。(This is a gsm modem module matlab simulation, provided you study and reference.)
- 2010-05-05 20:43:34下载
- 积分:1
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matlab_Geographic-Data-Analysis
基于matlab的地理数据分析,有数据有程序,很全很完整。(Matlab-based geographic data analysis, data have procedures, very full very complete.)
- 2014-09-01 23:33:36下载
- 积分:1
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matlabprogramstudy
学习matlab的一个较好的学习资源,可以通过学习迅速上手.(for learning)
- 2009-02-16 14:14:16下载
- 积分:1
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explore_matlab
该书提供了详实的结合,尤为重要的是结合实例(matlab explore)
- 2010-07-21 19:48:58下载
- 积分:1
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mfcc
为MFCC的MATLAB程序,用于语音识别结束的特征参数提取(MFCC)
- 2009-06-01 10:46:09下载
- 积分:1
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lpc-by-matlab
说明: Matlab环境下的音频LPC分析toolbox,包含一系列工具。(LPC Matlab environment analysis of the audio toolbox, contains a series of tools.)
- 2011-04-13 12:47:14下载
- 积分:1
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aw
说明: 利用matlab语言编写的水下简正波分析程序,可计算P(Matlab language use underwater normal wave analysis procedures, calculate P)
- 2007-12-09 17:57:08下载
- 积分:1
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Diffrencial-Equations
Solving Diffrential equtions
- 2012-08-06 19:48:23下载
- 积分:1