particle_swarm_optimization

本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF(This paper describes the principle of DTMF and how MATLAB to generate DTMF signals, mainly related to the telephone dial tone and identification of the basic principles of synthesis of the main method, using MATLAB software, and the FFT algorithm to the telephone communication system, the synthesis and identification of dial tone . And further the use of MATLAB' s graphical user interface simple and intuitive GUI make the analog interface. Able to use a different fundamental frequency matrix synthesis of 0- 9 different button dial tone and can be different correct identification of dial tone to achieve by the dial tone of the process of parsing a telephone number to complete the telephone dial tone system, a simple experiment simulation.-This paper described the principle and how DTMF in MATLAB to generate DTMF)

说明：  符号LMS算法的MATLAB实现 并比较误差性能和收敛速度 结果正确 可以直接使用(MATLAB symbolic realization of LMS algorithm and compare the results of error performance and convergence speed can use proper)

基于dct（离散余弦变换）的matlab程序代码(Based dct (discrete cosine transform) of the matlab code)

无线异构网络中继功率分配算法.AF协议的中继放大系数（中继将接收信号用一个因子量化，该因子与接收功率成反比）,利用QPSK调制解调，最后算出误码率 (matlab ber P)

本程序为粒子算法找最小值，很有启发意义，大家可以借鉴下(This program is to find the minimum particle algorithm, very instructive, we can learn from the next)

说明：  最基本的直接扩频中如何用m语言编写语句产生pn序列(generate pn sequence )

说明：  这个事matlab作图的一个ppt演示范本，希望对大家有用(The matter of a ppt presentation matlab mapping model, we want to be useful)

运用粒子群和改进粒子群算法求解典型函数 具有可视化的功能(And improve the use of particle swarm particle swarm algorithm with a typical function of visual function)

M-aray Phase Shift Key Modulation

详细介绍了利用等纹波设计和凯泽窗法设计FIR滤波器的方法，并进行了仿真，并对纹波系数和衰减进行了比较(Details of the method of utilization ripple design and Kaiser window FIR filter design, and simulation, and the ripple factor and attenuation compared)