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LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) (LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.)

张光义院士写的相控阵雷达技术下册部分，是一本不错的参考书(ZHANG Guang-yi wrote academicians phased array radar technology part of the next book is a good reference book)

进行潮汐调和分析的程序，比较实用，适合初学者的学习。(For tidal harmonic analysis procedure more practical for beginners to learn.)

包含802.11a通信系统的中文和英文资料及相应的MATLAB实现。(Chinese and English information contained 802.11a communication system and the corresponding MATLAB implementation.)

这里面有MATLAB常用的一些算法，用于计算数值计算，文件格式为.m(There MATLAB commonly used in some algorithms used to calculate the numerical calculation for the file format. M)

power_voltmeasure.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_voltmeasure.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

this la simulation in DOA and Comunication

目前比较流行的稀疏分解重构程序，可以用在人脸识别、字典构造等方面。(Currently popular sparse decomposition and reconstruction process, can be used in face recognition, dictionary structure and so on.)

交流得到的matlab图像去模糊的一个验证程序，还算是比较详细。(A verification process exchanges get matlab image deblurring, still is relatively detailed.)

使用matlab常用绘图命令说明。。。。。(Matlab drawing commands using common instructions)