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c#编写串口通讯代码 多线程实现,老外写的，很有用，很全面(c# write serial communication code multithreading, written by foreigners, very useful, very comprehensive)

hiperlan协议中mac接入仿真,针对不同随机访问信道数（RCH）进行吞吐量的比较(one proposed way for random RCH number-hiperlan agreement mac access simulation, one proposed way for random number RCH )

说明：  里面包含四种情境的信道估计模型 比较了他们的优缺点(There are four scenarios in the channel estimation model to compare their advantages and disadvantages)

进行信号积累时，有的信号存在多普勒频率，不利于累加。该程序可完成对信号多谱勒频率的补偿。(Signal accumulation, some signal Doppler frequency, is not conducive to the accumulation. The program can be complete compensation of the signal Doppler frequency.)

GFSK调制通信系统误码率统计，非常有借鉴价值(GFSK modulation communication system bit error rate statistics, the very reference value)

主要是实现调制识别，区分几种常用的数字调制信号。含有两个文件夹 其一为特征参数的仿真；其二为正确识别率的仿真。文件夹key feature simulink中： 运行程序会得到各特征参数之间区分图 从图中可看到特征参数的有效性，见图。 文件夹classification rate simulink中：运行main.m文件 可以得到正确识别率 见图。(It is mainly to realize modulation recognition and distinguish several commonly used digital modulation signals. The simulation of two folders is one of the characteristic parameters, and the second is the simulation of the correct recognition rate. In the folder key feature Simulink: The running program will get the validity of the feature parameters that can be seen from the diagram, as shown in the diagram. Folder classification rate Simulink: running the main.m file can get the correct recognition rate.)

说明：  cpofdm信道模型仿真，通过仿真得到cpofdm信道模型的复杂度和在各种信噪比下的误码率(Through the simulation of cpofdm channel model, the complexity of cpofdm channel model and the bit error rate under various SNR are obtained)

本程序利用交替优化的方法实现了8-PSK信号在多普勒频移条件下的相位和定时双参数同步，不仅程序注释清晰，而且附上该程序实验报告，力求便于读者理解。(By optimizing alternately, this program realizes two parameters synchronization of phase and timing for 8-psk signal under Doppler frequency shifting channel. For better understanding of readers, I not only note the program clearly, but also provide the experimental report in the rar.)

costas环解调程序，需要的可以参考一下。costas环解调.m(It is a matlab code for demodulation as costas ring .if you are interested in it, you can refer to it.)

说明：  基于空间调制的matlab代码，可完整运行(Matlab code of wireless communication system based on spatial modulation)