A joint detection, localization and respiratory rate estimation of multiple static persons using UWB radar

Abstract

In the past period, great efforts have been made to develop methods for the people detection based on monitoring their respiratory motion using ultrawideband (UWB) radar. The basic principle of the respiratory motion detection consists in the identification of sensor signal components possessing a significant power in the frequency band 0.1–0.7 Hz (frequency band of human respiratory rate) corresponding to a constant range between the target and radar antennas. However, the problem of person localization associated with the estimation of their breathing rate has not been studied deeply. In order to fill this gap, an approach for a joint localization and breathing rate estimation of persons will be introduced in the paper. For that purpose, a radar signal processing proceure for multiple static person localization along with their breathing frequency estimation will be introduced in this paper. The performance of the proposed procedure will be evaluated for the experimental scenario intent on through-the-wall localization and respiratory rate estimation of two static persons using single UWB radar employing one transmitting and two receiving antennas.