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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. )

a program for to maximise the fonction f(x,y)=x+y with genetic algorithm

说明：  使用遗传算法、粒子群优化算法和量子遗传算法对认知无线网络进行频谱分配(Using genetic algorithms, particle swarm optimization algorithm and quantum genetic algorithm for spectrum allocation in cognitive radio networks)

二相编码雷达脉冲雷达信号的参数提取。在二相编码雷达脉冲信号上加入噪声，然后在提取改信号的频率(Second phase coding parameter extraction radar pulse radar signals. Join noise in the two-phase encoded radar pulses, and then change the frequency of the signal extraction)

this is watermark source code. it is good for making programming

说明：  具有自检测功能的交通路标识别系统代码。能自动识别常见的交通标志，检测道路信息。(Self-detection of traffic signs recognition system code. Can automatically identify common traffic signs, road information detected.)

介绍了MATLAB求解应用数学问题的相关知识，很详细，是英文的。(Describes the application of MATLAB to solve mathematical problems related to knowledge, very detailed, is English.)

用pnn或gbl进行码书设计，用aei进行码字搜索的MATLAB源码。(Pnn or carried out by gbl codebook design, aei codeword search for the MATLAB source code.)

Mapping consist of QAM and QPSK modulation

实现正态分布的伪随机数发生器 实现正态分布的伪随机数发生器(To achieve normal distribution of the pseudo-random number generator to achieve normal distribution of the pseudo-random number generator)