Chapter-03

说明：  一个关于时域有限差分的小程序，用MATLAB开发，模拟电磁波传播特征。(A finite-difference time-domain on a small program developed with MATLAB to simulate electromagnetic wave propagation features.)

精通matlab6.5(北航 张志涌),pdf格式，学习matlab经典书籍之一。(proficient matlab6.5 (Beijing University of Aeronautics and Astronautics Zhang Yong), pdf format, Matlab learning one of the classic books.)

introduce install omnet by video

This code was used for making the practical measurements in section 2.3 of my thesis. This Matlab code allows an OFDM signal to be generated based on an input data file. The data can be random data, a grey scale image, a wave file, or any type of file. The generated OFDM signal is stored as a windows wave file, allowing it to be viewed, listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data. This code was developed for the experiments that I performed in my honours thesis, and thus has not been fully debugged. This is the original code developed for the thesis and so has several problems with it. The BER performance given by the simulations is infact Symbol Error Rate. (This code was used for making the practical measurements in section 2.3 of my thesis. This M atlab code allows an OFDM signal to be generated based on an input data file. The data can be rando m data, a gray scale image, a wave file, or any type of file. The OFDM signal is generated stored as a windows wave file, allowing it to be viewed. listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data . This code was developed for the experiments th at I performed in my honors thesis, and thus has not been fully debugged. This is the original code developed for the thesis and so ha 's several problems with it. The BER performance given by the simulations is infact Symbol Error Rate.)

本程序实现QPSK信号，通过瑞利信道后的各部分星座图(The program QPSK signal, Rayleigh channel through each part of the constellation after)

人脸识别基于主成分分析（PCA）的matlab实现，附带部分注释。(PCA achieve recognition)

Mutual Information Feature Selection

Signal Model and Statistical Analysis for the Sequential Sampling Pulse Radar Technique

说明：  遗传算法借鉴了达尔文的进化论和孟德尔的生物遗传学说，模拟大自然界生物进化 机制，是一种高效、并行、全局搜索的优化方法。它能够在搜索过程中自动获取和积累 有关搜索空间的知识，并自适应控制搜索过程以求得最优解。(Genetic algorithm draws on Darwin s theory of evolution and Mendel s biological genetics, simulation of the nature of biological evolution Mechanism, is an efficient, parallel, global search optimization method. It can be automatically acquired and accumulated during the search process Knowledge about the search space, and adaptive control of the search process in order to obtain the optimal solution.)

说明：  dijkstra算法求最短路径及路径标号的matlab实现(dijkstra，shortest path)