Abstract

Conventional through-the-wall radars are based on monostatic configuration and the back-scattered signal from the objects to be observed (e.g., human). However the back-scattered signal from human is very weak and usually high transmit power is needed in conventional through-the-wall radars to overcome the wall attenuation loss and detect the weak back-scattered echo signals. In this paper we investigate the through-the-wall human motion sensing based on forward scattering, which can greatly alleviate the power budget constrain and detect various human motions behind the wall with good sensitivity, even at very low transmit power.

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