CS

本文件包含通信所有过程，从调制，扩频，发送到接收，经过解扩，解调等。其中信道可以随机产生时变的多径信道。()

通过粒子群算法改进了矢量量化,有利于图像的压缩(The particle swarm optimization is used to improve the vector quantization, which is beneficial to the compression of the image.)

Multi-Carrier Cooperative Wireless Communication

采用Log-BP算法的LDPC码译码仿真程序,给出了不同信噪比下误码率和误包率的统计图,用matlab和Cc-mex程()

说明：  求解双层规划问题常用的算法有极点算法、直接搜索法、下降法和非数值优化方法(如模拟退火算法、遗传算法等)，遗传算法的求解思路是：首先对上层的决策变量编码，代人下层规划模型，通过求解下层模型的决策变量值，代入上层模型计算适应度值，然后进行交叉、变异、选择操作，最后求出最优解。(Solving Bilevel Programming Problems with pole algorithm commonly used algorithms, direct search method, descent and non-numerical optimization methods (such as simulated annealing, genetic algorithms, etc.), genetic algorithm for solving approaches: the first on the top of the decision variable coding, on behalf of the were lower programming model, by solving the lower model of decision variables values into the upper model on behalf of the fitness value, and then crossover and mutation, select Options, and finally get the best solution.)

Underwater optical wireless communication network

实现BPSK的载波同步，采用的方法是锁频环，最大似然法频率估计(BPSK carrier synchronization is realized,the method is frequency - locked loop and maximum likelihood frequency estimation)

FLL、PLL、DLL的设计与比较,在扩频通信系统中这三种环路就是关键。(FLL, PLL, DLL design and comparison, in the spread spectrum communication system in these three loops is the key.)

用c语言写的ldpc码的最小和算法译码程序。(The codes are about ldpc decoding,using min-sum algorithm by c++.)

说明：  使用改进的遗传算法来优化一维周期稀疏线阵(Using improved genetic algorithm to optimize one-dimensional periodic sparse linear array)