Application Of Impulse Ultra Wide Signal Band In The Through Wall Radar

There are numerous occasions which need to inspect the in terior of a room, a building or a blindage when physically entering the room is impossible or hazardous, such as urban-warfare, counter-terrorism, civil engineering and law-enforcement scenarios. The Ultra-Wideband Through-Wall Detecting Radar(UWB-TWDR) is a kind of candidates which can finish these tasks well.This article briefly introduces the development of the UWB technology and its application in the TWDR, especially several ways to bring the UWB narrow pulse waveform are mainly discussed. For EM scattering properties illuminated by ultra-wide band (UWB) signal, the impulse response model is established.Another , the target echo modeling of the UWB radar is constructed and detection of the moving target is mainly discussed. The detection of impulses the typical environment of the through-wall radar is introduced. combing the effective pulse accumulation method and mixed wave restrain method, we apply the table check technology in the through-wall radar to effectively gain the position information of the moving target. This method need less requirement for the calculation units, the refresh of the image is very fast, and easy for the implement of the DSP, it has taken well effect in test of the sample machine.