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基于AF协作分集与M-QAM自适应调制技术的系统频谱效率分析的matlab仿真程序(AF-based cooperative diversity with M-QAM adaptive modulation system spectrum efficiency analysis matlab simulation program)

Introduction Kalman filter D.Alazard

关于直接序列扩频通信的，介绍了其原理，给出了SIMULINK仿真模型，并对各个模块作了详细的描述。(On direct sequence spread spectrum communications, introduced its principle, given SIMULINK simulation model, and each module in detail description.)

说明：  用MATLAB编程实现半导体光放大器（SOA）的ASE噪声特性分析，可以计算半导体光放大器的载流子密度，ASE增益，噪声指数，主要用的是半波逼近法来实现数值算法。(Programming with MATLAB semiconductor optical amplifier (SOA) of the ASE noise characteristics analysis, semiconductor optical amplifiers can calculate the carrier density, ASE gain, noise figure, the main use is half-wave approximation method to achieve the numerical algorithm.)

瑞利信道仿真，用于ofdm，mimo系统中，望大家下载(Rayleigh channel simulation for ofdm, mimo system, hope you download)

High Pass Filter for some frequency

说明：  用matlab编的语音增强的一个程序，是用维纳滤波实现的，(Matlab made use of a speech enhancement procedure, Wiener filter is used to achieve,)

far field modelling of active optical fibre 30core

该M文件为水声信道仿真，必出的图形，是一个基础图形，有注释，可以帮助初学者很好的理解整体思路，框架结构！(The M file for underwater acoustic channel simulation, will be out of the graphics, is a basic graphics, there are comments that can help beginners a good understanding of the whole idea, framework!)

神经网络遗传算法函数极值寻优非线性函数极值寻优(Neural network genetic algorithm optimization function extreme nonlinear function extreme optimization)