Outdoor target detection of solid state pulser based on power synthesis

The ultra-wide band(UWB) impulse radar system is developed and studied, which includes a solid state pulser based on power synthesis technology, an UWB planar TEM horn antenna array for transmitting, an UWB slot array for receiving, a quadrature demodulation receiver and a computer. By heightening the distances between the ground and the target, and the transmitting and receiving arrays, and adding the time window, the radar system can detect the target which is 2 km away and the RCS of optics area is 0.01 m2, which shows that the system is feasible. The echo signal is stronger when 16 transmitting cells are adopted than that when 8 transmitting cells are adopted, which shows that the technology of power synthesis is effective.