OFDM

说明：  GPS信号模拟软件，模拟GPS设备向串口输出0183格式标准语句，配合串口虚拟工具使用，可以在普通电脑上调试(GPS signal simulation software, which simulates GPS equipment to output 0183 standard statements to serial port, can be debugged on ordinary computer with serial virtual tools.)

说明：  cdma系统matlab仿真，在两个用户的背景下采用了直接扩频码实现扩频解扩，bpsk调制解调，程序已经运行过，没有问题！(Establishment of multipath channel model)

mqtt-python收发，里面有几个例子，对于topic的分类，mqtt的连接，收发等！(Mqtt transceiver in python!)

波束形成的几种常用准则，SNR，MSE,LCMV准则。信号+干扰+噪声环境。在干扰方向形成零陷。(Several commonly used criteria of beamforming, SNR, MSE, Suppression for LCMV guidelines. Signal+ interference+ noise environments. Formed in the direction of the interference nulling.)

超宽带UWB,包括 uwb mdl UWB model - open this to begin uwb_lib mdl Libr()

串口程序，用于通过串口控制空调，可以在这个程序基础上修改其他代码(used for serial port)

西门子PLC第三方通信驱动，包括PPI,MPI,ISO-TCP等所有通信协议(Siemens PLC, third-party communications drivers, including PPI, MPI, ISO-TCP communication protocol)

加窗QPSK-OFDM调制解调，每个OFDM符号采用QPSK调制方式，并画出了时域对比图(Windowed QPSK-OFDM modulation and demodulation, each OFDM symbol using QPSK modulation and a time-domain comparison chart shown)

一种频率估计方法，短时傅里叶变换，很基础，适合初学者。(A frequency estimation method, short-time Fourier transform，it is based, suitable for beginners. )

时频域联合反射法（TFDR）故障测距原理及相关论文 (Joint time-frequency domain reflectometry (TFDR) fault location principle and related papers)