An overview of the principles of ultra-wideband impulse radar

Extensive research work has been carried out to develop the ultra-wideband (UWB) technology for radar applications, and to resolve the practical challenges met in implementing an efficient UWB radar system. In this paper, we present an overview of the basic principles of a UWB impulse radar. The focus is on the principles of UWB signal generation, impulse radiation, waveform design, pulse compression, range-velocity resolution (ambiguity function), array beamforming, and radar-target signature.