SPMA 基于信道忙统计的多信道媒体接入控制协议

说明：  Millimeter-wave Beamforming and Phased Arrays

利用数据板卡进行数据采集，利用半满的方式将模拟量转换成数字量(Data card for data acquisition, the use of half-full way to convert analog into digital)

gmsk调制与解调仿真，相干解调，请多多指教。(gmsk modulation and demodulation simulation, coherent demodulation, a lot of advice.)

说明：  6. 在三条径的瑞利信道中，对于OFDM： (1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真。画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。 (2) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(6. In the three-path Rayleigh channel, for OFDM: (1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn. (2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability. (3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)

说明：  cclink -ie 通讯手册 ，需要的朋友可以看一看(cclink -ie Communication manual)

5G辅同步信号SSS的m序列的matlab生成代码(Generate the secondary synchronization signal symbols (BPSK) for a given cell ID)

说明：  通过运用t2f f2t函数运行gmsk(Running GMSK with t2f F2t function)

对无线通信环境下的多径衰落和阴影衰落进行的建模。给出了一些仿真的建议(Modeling on multi-path effect and shadowing under wireless communication system. And this code gives some advice on simulation of these situation.)

说明：  基于matlab平台，产生4FSK,2PSK数字信号(Generate 4FSK, 2PSK digital signal based on MATLAB platform)

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