serial_communication

OFDM系统，包括系统的编码，调制，转换，发送，时间同步，频率同步(OFDM systems, including system encoding, modulation, conversion, send, time synchronization, frequency synchronization)

说明：  To completely remove inter-cell interference, SIC is applied by the receivers at the user side. The technology can separate these data streams for corresponding users The interference cancellation technology is of importance for hybrid unicast/multicast service system performance

一个科技公司使用的GPRS接收程序。可是直接使用(A PROGRAM OF GPRS SERVER 。IT S VERY EASY TO USE.)

LDPC的矩阵生成，准循环码矩阵的生成，采用PEG算法生成，使用块矩阵方法(produce QC-LDPC matrix)

代数编码纠错编码的经典书籍Richard_E._Blahut(error control code and algebra code；Richard_E._Blahut)

BPSK仿真程序，简短有效，误码率分析，经典，快速(BPSK Simulation)

OFDM(正交频率调制)实现多载波调制基本思想是将带宽信道分解成许多并行的窄子信道，是每个子信道的想干带宽，从而实现平稳衰落。搭建了完整的OFDM信道链路系统，运用三种不同的信道估计方法(LS信道估计、DFT信道估计、Improved-DFT信道估计)，并对AWGN理想信道和衰落信道误码情况进行了仿真和比较。(OFDM (Orthogonal Frequency Modulation) multicarrier modulation basic idea bandwidth channel is decomposed into a number of parallel narrow subchannels, each subchannel wanted bandwidth, in order to achieve a smooth fading. Build a complete OFDM channel link system, the use of three kinds of different channel estimated method (LS channel estimated, to the DFT letter Tao estimates, Improved-the DFT letter Road estimated), and AWGN ideal letter Road and fading channel bit error situation conducted a simulation and comparison .)

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)

实现了lfm信号的仿真，可以对其频谱和时域波形进行分析，并且仿真了其模糊函数，可以分析其雷达性能。(The simulation of LFM signal is realized, and its spectrum and time domain waveform can be analyzed, and its ambiguity function can be simulated to analyze its radar performance.)

simulink搭建的卫星姿态动力学仿真，参考书籍是章仁为的卫星鬼道姿态动力学仿真，想学对卫星姿态有兴趣的同学强烈推荐，(simulink to build the satellite attitude dynamics simulation, reference books is Zhang Ren ghosts satellite attitude dynamics simulation, I wanted to learn for students interested in satellite attitude is strongly recommended,)