chap_4

基于EM算法实现的高斯混合模型数据分类，可以很优秀的对各种数据进行聚类分析，R语言实现(EM algorithm based on Gaussian mixture model data classification, can be very good for a variety of data clustering analysis, R language)

radar jammer in matlab

先进PID控制matlab仿真光盘的全套源程序，欢迎大家下载，谢谢(Advanced PID control matlab simulation CD-ROM full source code, are welcome to download, thank you.)

电波信号的相关信分析，包括时间，空间，频率(the relation of the radio signal)

工程中，振动信号有时域与频域两种分析方法，该文件是频域分析处理方法(Engineering, vibration signal and frequency domains sometimes two analysis methods, the document is a frequency domain analysis and processing methods)

打靶法计算非线性方程，只需要修改方程的参数即可进一步通过打靶法求解，很实用(Calculation shooting method of nonlinear equations, only need to modify the parameters of the equation can be further illustrated by the shooting method to solve, very practical)

说明：  FOTF Toolbox version 1.3 by Dingyu Xue A collection of MATLAB files for fractional calculus and fractional-order control fractional-order control. (1) High precision algorithms are provided for fractional derivatives and fractional differential equations; (2) Two classes, FOTF and FOSS, are provided to fully support the modelling,

本文档很好的阐述了软件开发过程中要注意到的版本控制问题，提出了很好的管理经验，供大家参考(This document set out a very good software development process should be noted that the version control problems, made a very good management experience, for your reference)

matlab 是一款非常实用的软件，大家一起学习一下(Matlab toolbox contains most of the mathematical function, very suitable for learning)

代码详细的书写了FSK的过程，其中分为相干与非相干两个部分。(Code written in detail the FSK process, which is divided into two parts coherent and incoherent.)