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阵列信号处理中: 仿真圆形阵列天线的用法,对比了传统方法和MUSIC方法的性能(Array Signal Processing: Simulation of circular array antenna usage, compared to the traditional methods and the performance of MUSIC method)

matlab program for exponential function

三种PN序列自相关性分析，和循环移位互相关分析gold，小m序列，walsh码(Three kinds of PN sequence from the correlation analysis, and rotate the cross-correlation analysis, contants gold, small m sequence, walsh code)

1. 按照式计算相似性矩阵 2. 排除自身的相似度 3. 按照式计算归一化矩阵 4. 按照式计算归一化拉普拉斯图矩阵L 5. 计算L的特征向量，将前个特征值最大的向量按列放置成一个矩阵，即依次为前个特征值最大的特征向量 6. 归一化X形成矩阵Y 7. 对矩阵Y按每行为一个数据点，进行k-means聚类，第行所属的类就是原来所属的类。(1. similarity matrix based on formula computation 2. rule out your own similarity. 3. normalized matrix based on formula computation 4. normalized formula Laplasse matrix L according to formula. 5. Calculate the eigenvectors of L. Place the vectors with the largest eigenvalues in columns into a matrix, that is, the eigenvectors with the largest eigenvalues in turn. 6. normalized X formation matrix Y 7. K-means clustering is applied to matrix Y according to one data point per behavior. The first row belongs to the original class.)

The ouput is the TE/TM band structure (first five bands) along pricipal directions (G-X-M-G) of a square-lattice photonic crystal with unit cell consisting of a substrate of "epb" relative permittivity with circular rods(holes) of "epa" relative permittivity and radius "r". Usage is SharifPWE_BZplot(N,RES,r,epa,epb) N: N in PWE algorithm (number at which the summations are truncated) RES: number of the divisions on every side of BZ#1 r: normalized radius of the circle of holes/rods (0<r<0.5) epa: relative permittivity of holes/rods epb: relative permittivity of the substrate Written by Amir Hosseini for the Course Photonic Crystals (C) Copyright 2005 School of Electrical Engineering Sharif University of Technology All Rights Reserved

frequency hopping in wireless communication

这是本用MATLAB软件绘制平面图及立体图的教程，里面有许多例子(This is the use of MATLAB software to draw plans and three-dimensional map of the tutorial, there are many examples)

混沌工具箱 混沌Logistic 映射与混沌吸引子(chaos toolbox Logistic)

程序实现了QAm信号的编码调制以及差分解调过程，并仿真了QAm信号的星座图(QAM signal)

相控阵波束形成仿真程序，该程序使用最大噪声的方法对加权函数进行优化(Phased array beam forming simulation program, the program uses the method of maximum noise weighting function to optimize)