Satellite-FDM-examples

估计接收到的直扩信号的载频，码速率，以及扩频增益(Estimate the carrier frequency, code rate, and spread spectrum gain of the received DSS signals)

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)

java源码程序关于matlab学习(procedures on Matlab learning)

简单的信道编码matlab仿真程序,主要是无噪声信道和高斯噪声信道下的信道仿真。(Simple channel coding matlab simulation program, the main channel is no noise and Gaussian noise channel channel simulation.)

支持IEC60870-5-104: 2000 IEC104规约软件包 实现104规约主站侧链路层的功能(IEC_Master_104.lib: void Init_SockServerport(WORD port=2404) void Init_Linkpara(int t0=30,int t1=15,int t2=10,int t3=20,int k=12,int w=8) virtual void On_init_Link_process() virtual void On_init_Sock_process() virtual void On_ErrorMsg(char*msgbuf) void slave_start() void slave_close() )

在高斯白噪声信道和莱斯信道下调制方式为qpsk的基本通信系统的误码率仿真 (In the Gaussian white noise channel and Rice channel qpsk modulation method is the basic communication system BER simulation)

OFDM系统包括OFDM系统的调制解调，IFFT及FFT变换，保护间隔的加入对系统性能的改善，以及多径干扰、高速移动对系统误码率的影响。(The OFDM system includes modulation and demodulation of the OFDM system, IFFT and FFT transformation, the improvement of the protection interval to the system performance, and the influence of multipath interference and high-speed mobile on the system BER.)

多径条件下基于WSF的均匀圆阵幅相误差自校正(WSF-based multipath conditions of uniform circular array amplitude and phase error self-correction)

encoding binary data using non return to zero

西门子PLC第三方通信驱动，包括PPI,MPI,ISO-TCP等所有通信协议(Siemens PLC, third-party communications drivers, including PPI, MPI, ISO-TCP communication protocol)