matlab03-05

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.)

this chapter file is a communication book chapter code file

FT2 M-file for ft2.fig FT2, by itself, creates a new FT2 or raises the existingsingleton.

用MATLAB软件实现遗传算法解决作业车间调度问题(Genetic algorithms using MATLAB software to solve the job shop scheduling problem)

LDPC码的完整的编译码，虚拟力的无线传感网络覆盖，小波包分析提取振动信号中的特征频率。( Complete codec LDPC code, Virtual power wireless sensor network coverage, Wavelet packet analysis to extract vibration signal characteristic frequency.)

Discrete Cosine Transform

卷积码实现卷积码的软硬判决，不同约束长度的对比。(Convolutional codes soft judgment)

In this letter, we employ orthogonal random beam-forming (ORBF) for the worst-case multi-user downlink scenario whereeachuseriswiretappedby one eavesdropper. Two oppor-tunistic scheduling techniques that ensure confidentiality by ex-ploiting multi-user diversity are investigated thefirst technique (optimal) requires limited feedback of the effective signal-to-in-terference ratio (SIR) from all the users

Elnagar, G., et al. (1995). "The pseudospectral Legendre method for discretizing optimal control problems." IEEE Transactions on Automatic Control 40(10). 上述文章的算例2的仿真代码(Elnagar, G., et al. (1995). " The pseudospectral Legendre method for discretizing optimal control problems." IEEE Transactions on Automatic Control 40 (10). the simulation code of example 2 in the preceding article.)

空间小目标检测程序，采用TBD方法检测跟踪空间弱小目标（需原始数据）(The program for detecting small target in the space)