ofdm_psd_spectrum

说明：  TCP/ip通讯客户端的程序。VB程序编写WINSOCK控件应用(TCP/ip messaging client program. VB programming WINSOCK Control Applications)

一个即时的客户端和服务端的聊天室........000000000(An instant client and server chat room.......00000000000)

说明：  产生随机信号，采用4fsk调制方式通过一个水声信道，再采用非相干解调(Generate random signal, use 4FSK modulation to pass through an underwater acoustic channel, and then use incoherent demodulation)

Matlab产生M-psk信号,用SVM实现对M-psk星座图的非线性决策边界,使用训练后的模型对测试数据进行预测(Realization of nonlinear decision boundary for M-psk constellation using SVM)

完整的GMSK仿真程序，viberbi很好的实现,可以很好解决问题(it is very good for Complete GMSK simulation program can be good. if you use it,ok)

ofdm+mimo+rayleigh仿真M文件，需要研习的请下载。(ofdm+mimo+rayleigh整个通信模型仿真，包含预编码，SVD（奇异值分解），SER计算，自适应（SISO的），OFDM调制解调)

使用Jakes所假设的模型，用来产生信道抽头延迟线模型中的抽头增益过程所需的多普勒频谱成形滤波器有多种实现方法。时域FIR滤波器是最常用的一种实现方法。(Assumed the use of Jakes model, used to generate the channel-tap-tap delay line model of the process gain the necessary Doppler spectrum shaping filter has a variety of implementations. Time domain FIR filter is an implementation of the most commonly used method.)

This program is for division of natural semiconductor

matlab生成混沌信号的几个代码 以及文档资料 非常好 一次学会混沌信号(matlab to generate a chaotic signal code and documentation is very good chance the chaotic signal)

信道为瑞利信道，S_D的距离为1米，三跳协作通信系统中S_R、R1_R1、S_D的距离均为1/3米。调制方式为BPSK,信噪比在-15dB-15dB间，接收端合并方式为ERC,迭代次数为1000(The channel is Rayleigh channel, the distance of S_D is 1 m, and the distance of S_R, R1, S_D in three-hop cooperative communication system is 1/3 M. The modulation mode is BPSK, the signal-to-noise ratio is between - 15dB and 15dB, the receiver merge mode is ERC, and the number of iterations is 1000.)