接收前面的雷达信息，平时没有测速信号时，雷达会定时发射一个连接信号，以检测RF是否连接正常。当遇到测速信号时，雷达会发射特定的代码。-Receiver in front of the radar information, granted that there is no gun signal, the radar will regularly launch a connection signal to detect whether or not to connect the normal RF.

雷达数据采集，日本urg-0.8包，采集2D数据，将雷达测出的长度信号转换成图形数据显示，库包里有C库以及c++库。-Radar data acquisition, Japan urg 0.8 package, 2 d data, the radar to measure the length of the signal into graphic data shows that there are C library and the library of C++ library package.

雷达数据采集，日本urg-1.1.2包，采集2D数据，将雷达测出的长度信号转换成图形数据显示，库包里有C库以及c++库。-Radar data acquisition, Japan urg 0.8 package, 2 d data, the radar to measure the length of the signal into graphic data shows that there are C library and the library of C++ library packag

雷达中的信号相干积累，使得信号的信噪比提升N倍。-Coherent integration radar signal, so the signal to noise ratio enhancement N times.

simulation of Synthetic Aperture radar where the transmitted signal is linear frequency modulated waveform