eetop.cn_PLLnoise+jitter_ams model

csma tutorial for begginers with graphics explantaion

基于Matlab的OFDM原理仿真，调制解调的原理仿真，通过输出的星座图进行分析(Simulation based on Matlab OFDM principle, the principle of modulation and demodulation simulation output constellation diagram analysis)

MANET routing model with DSR

MFC编程 实现数据绘制成曲线。经兄弟推荐最终决定用两个控件MCSCOMM与TeeChart来完成此任务。MCSCOMM控件时vc自带的串口控件(MFC programming realizes data plotting into curves. After recommendation by brothers, we finally decided to use two controls, MCSCOMM and TeeChart, to accomplish this task.)

该程序可以实现多个客户端互相通讯，如同聊天室(Multiple clients can communicate with each other, just like chat rooms)

说明：  lms基础算法，已经经过测试，可以通过。(LMS basic algorithm has been tested and passed.)

迭代ACCF相参积累与参数估计,SAR回波，只加了噪声(Iterative ACCF coherent accumulation and parameter estimation)

利用MATLAB软件对OFDM系统做出仿真。仿真中采用QPSK调制技术，并加入高斯白噪声，最终得到QPSK星座映射图以及BER曲线图。由仿真结果可以看出，OFDM在高斯信道具有良好的抗噪声性能，误码率较低。(MATLAB software is used to simulate the OFDM system. In the simulation, QPSK modulation technology is used, and Gauss white noise is added, and the map of the QPSK constellation and the BER curve are finally obtained. It can be seen from the simulation results that OFDM has good anti noise performance and low error rate in Gauss channel.)

对数字通信作简要介绍，有一定参考价值，适合通信相关开发人员(Digital Communication related)

说明：  LDPC码的mackay构造法，PEG构造法，QC-LDPC构造，SPA译码算法(LDPC codes are constructed by Mackay, PEG, QC-LDPC and Spa decoding algorithms)