pracsim-2

ethercat通信协议栈及其源代码，可用于嵌入式开发及ethercat主站搭建。(EtherCAT communication protocol stack and its source code)

AX.25业余无线电数据通信协议通信的实现程序，包括打包和解包。(A program for packeting and unpacking AX.25 protocol.)

分析OFDM 有关PAR 问题 的一个很好的PPT(Xu Pleiades PAR TING OFDM bleed at the nose cavity恀Questions instance stamp suspect exhaust cavity PPT)

matlab O&M算法 matlab仿真程序，使用函数实现位定时算法(Matlab O&M algorithm matlab simulation program, the use of functions to achieve bit timing algorithm)

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)

针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能 在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)

average.m为平均功率对信道容量的影响 WaterFilling.m为注水算法对信道容量的影响 主程序为天线相关性对MIMO的影响模拟(average.m average power of channel capacity WaterFilling.m channel capacity for the water-filling algorithm main program for the impact of antenna correlation on MIMO simulation)

说明：  这是一个通信系统，复用资源下协作方案性能仿真(This is a communication system, the performance simulation of cooperation scheme under reuse resources)

说明：  实时声音采集，双通道采集声音信号，并且进行降噪处理和FFT变换(Real time sound acquisition)

说明：  基于simulink，对二进制基带信号使用bpsk调制解调，进行仿真与性能分析.(the simulink of bpsk)