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Journal ArticleDOI

Experimental evaluation of a system for human life detection under debris

01 Nov 2017-Vol. 263, Iss: 5, pp 052053
TL;DR: An experimental analysis on whether the microwaves could detect heart beat and breathing signals of human beings trapped under collapsed debris using RADAR based on by Doppler shift effect.
Abstract: It is difficult to for the human beings to be found under debris or behind the walls in case of military applications. Due to which several rescue techniques such as robotic systems, optical devices, and acoustic devices were used. But if victim was unconscious then these rescue system failed. We conducted an experimental analysis on whether the microwaves could detect heart beat and breathing signals of human beings trapped under collapsed debris. For our analysis we used RADAR based on by Doppler shift effect. We calculated the minimum speed that the RADAR could detect. We checked the frequency variation by placing the RADAR at a fixed position and placing the object in motion at different distances. We checked the frequency variation by using objects of different materials as debris behind which the motion was made. The graphs of different analysis were plotted.
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Journal ArticleDOI
TL;DR: The acoustic micro- doppler system described in this paper is simpler and offers advantages over the widely used electromagnetic wave micro-Doppler radars.
Abstract: A portable acoustic micro-Doppler radar system for the acquisition of human gait signatures in indoor and outdoor environments is reported. Signals from an accelerometer attached to the leg support the identification of the components in the measured micro-Doppler signature. The acoustic micro-Doppler system described in this paper is simpler and offers advantages over the widely used electromagnetic wave micro-Doppler radars.

51 citations