BFGS

说明：  this file is about protocols cryptography.

功能：CDMA调变 multiple access b/w 2 users using DS CDMA(multiple access b/w 2 users using DS CDMA format is : cdmamodem(user1,user2,snr_in_dbs) user1 and user2 are vectors and they should be of equal length)

复杂网络拓扑生存算法，对可能出现的拓扑不连通的状况进行了考虑，并支持网络拓扑的动态变化(Survival of a complex network topology algorithm, consider the situation that may appear disconnected topology and supports dynamic changes in the network topology)

说明：  一种改进的BP算法 MAtlab运用于预测(An improved BP algorithm is applied to predict MAtlab)

自学的五个小程序可以运行一下试试，为初学者准备(Self-learning program can run about five small try, for beginners)

matlab codes for adaptive filter FIR

amplitube modulation code matlab

DVB-T，DTMB简化的信道仿真程序。设置了三种保护间隔：循环前缀、零添加、伪随机添加。用于研究不同保护间隔下的SNR特性，附带一个不同保护间隔下的频谱显示，可看出三种保护间隔对OFDM频谱陡峭程度的影响。(DVB-T，DTMB channel simulation and spectrum display.)

数字图象处理与机器视觉Visual C++与Matlab实现，光盘源代码(Digital image processing and machine vision Visual C++ with Matlab, CD-ROM source code)

现代通信系统（MATLAB版）（第二版）教材中所配的所有MATLAB和SIMULINK源程序。(MATLAB and SIMULINK examples for contemporary communication systems (MATLAB version) (second edition) .)