Chapter4

在傅立叶变换光学中夫琅和费衍射场的强度分布就等于屏函数的功率谱。因此我们可以直接将光屏进行傅立叶变换，再处理得到衍射图样。(In the Fourier transform optics, Fraunhofer diffraction field intensity distribution is equivalent to the power spectrum display function. Therefore, we can directly Guangping Fourier transform, and then to handle any diffraction pattern.)

本压缩包是里面是用matlab编写的QPSK信号调制与解调的程序，程序十分简练。(The compressed package is written in matlab which is QPSK signal modulation and demodulation process, the program is very concise.)

matlab 数字信号处理实验1代码全部 东南大学(Digital signal processing matlab code experiment a whole Southeast University)

普通的通信系统仿真平台的搭建，从发射端到接收端。(Ordinary communication system simulation platform structures, from the launch-ended receiver.)

MATLAB实现基于趋近律的滑模控制 (MATLAB Reaching Law based Sliding Mode Control)

practical jxta源码，学习jxta的很好的资料！(practical jxta source, learning jxta of good information!)

快速模态分解，用以处理电流信号的奇异性，找到行波突变点，用在故障输电线路故障定位上(Fast mode decomposition to handle current signal singularity point mutation found traveling wave, with the failure of transmission line fault location)

离散粒子群算法。粒子群算法原来只能处理连续变量，算法进行了改进，可以处理离散变量(Discrete particle swarm optimization algorithm, particle swarm optimization algorithm can only deal with continuous variables, the algorithm is improved, can handle discrete variables )

提供了两种一维内插法，基于多项式的内插法和基于FFT的内插法。命令interpft可进行基于FFT的内插法。样本插值的源程序。(Offers two one-dimensional interpolation method, based on polynomial interpolation and FFT-based interpolation. FFT-based command interpft to the interpolation method. Sample interpolation of the source.)

速度分析，形成速度谱，加入了各向异性参数(Velocity analysis, the formation of the velocity spectrum, joined the anisotropy parameter)