An analysis of through- wall radar based on UWB impulse technique

Application of through-wall radar requires the ability to detect targets through relatively high-density materials such as concrete, stone and brick. Ultra wideband (UWB) impulse technique is able to penetrate these materials. The capacity to make wall relatively transparent is due to the broad-band nature of the transmitted impulses. First of all, ultra wideband radar system block diagram is depicted. Secondly, the techniques generated UWB impulse and converted from analogue to digital are introduced in detail in the paper. Finally, some simulation results about construction materials such as concrete, stone and brick leaded to considerable attenuation of electromagnetic waves are analyzed, the analysis presented here can be applied to the implementation of through-wall radar.