GAzhouqi

说明：  这是一个基于OPtisystem下的对于8PSK信号的仿真，可用于通信工程作业的一般仿真系统。(This is a simulation system of 8PSK signal based on OPtisystem, which can be used in general simulation system of communication engineering operation)

实现对CDMA短消息承载数据的编码解码处理(To achieve the CDMA SMS bearer data encoding and decoding processing)

说明：  OFDM系统仿真 ----比较OFDM系统的IDFT/DFT实现与模拟调制实现仿真代码，其中假设OFDM系统包含8个子载波，fc=1 Hz，子载波频率间隔为1 Hz，每个子载波采用4-QAM调制，符号周期为1秒(OFDM IDFT/DFT 4-QAM FFT/IFFT)

用于监控PLC，针对的是modbus协议(monitoring PLC with modbus protocol)

该程序为bellhop多径信道模型，其通信距离为5KM(The procedure for the bellhop multipath channel model, the communication distance of 5KM)

基于libmodbus编译，使用vs2013编译完整，亲测可行。(Compiled based on libmodbus, compiled using vs2013, complete, pro test feasible.)

this is simply a report on the fading channel on different modulation scheme

说明：  通过几个图文示例，详细说明了如何在matlab上通过虚拟串口发送和接受数据(Through a few graphic examples, detailed description of how to send and receive data through virtual serial port on matlab)

完全实现多串口通信，使用C#测试，完全通过(Multiple serial communication)

说明：  实现optisystem中matlab component的ofdm仿真。这是调制代码 解调代码在另一个程序里。(Realize ofdm simulation of matlab component in optisystem. This is the modulation code. The demodulation code is in another program.)