Experimental study in breath detection and human target ranging in the presence of obstacles using ultra-wideband signals
by Valerio Casadei; Nicola Nanna; Davide Dardari
International Journal of Ultra Wideband Communications and Systems (IJUWBCS), Vol. 2, No. 2, 2011

Abstract: The problem of detecting and localising human breath activities in the presence of obstacles using an ultra-wideband radar is addressed in this paper. An extensive measurement campaign performed in realistic environments is presented. A breath activity generalised likelihood ratio detector as well as human distance and breath rate estimators are proposed based on the definition of a novel time-variant channel response model. The robustness of the detector and the ranging accuracy are investigated using experimental data showing that a hidden person can be detected and localised in many of the scenarios considered.

Online publication date: Tue, 31-Mar-2015

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