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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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timefreq
说明: 可变窗宽短时付氏变换算法数字信号时频分析m文件(Variable window width STFT m-files for JTFA)
- 2010-04-21 11:39:29下载
- 积分:1
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ASP05
matlab的一些波束形成的算法 多种方法。。(the matlab the beamforming algorithm a variety of methods. .)
- 2012-11-26 20:19:08下载
- 积分:1
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matlab卷积码仿真代码
说明: 对卷积码的误码率进行了仿真,代码验证具体可行。(Simulation analysis of the error rate of convolutional code)
- 2019-12-10 16:06:28下载
- 积分:1
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mfcc code for mel frequency coefficient cepestral
目前的研究仍在进行中,可能
- 2023-08-22 11:10:03下载
- 积分:1
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ieeebasedswitchinglosesehormonicdostortin
this is an ieee based simulink based projects for reducing the harmonic ditortion is the power systems
- 2010-07-04 14:49:00下载
- 积分:1
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PCA-dimensionalityreduction
跟数据降维有关的matlab 源码 看清题目选择源码(dimensionality reduction of matlab code)
- 2009-05-25 10:52:03下载
- 积分:1
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koch2
用matlab画的一个类式koch的曲线(using Matlab painting a kind of curve-koch)
- 2006-12-15 21:37:04下载
- 积分:1
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basic-OFDM
OFDM的基础代码,种类很多,运行完美,很好实用,欢迎大家下载验证(OFDM-based code, many different types of works perfect, very good and practical, are welcome to download validation)
- 2011-06-01 13:22:21下载
- 积分:1
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s32k144 motor control
说明: s32k144的电机控制simulink模型,可生成elf和mot文件(S32k144 motor control simulink model, which can generate elf and mot files)
- 2019-04-03 15:22:42下载
- 积分:1