Static person detection and localization with estimation of person's breathing rate using single multistatic UWB radar

Abstract

In the past period, great efforts have been made to develop the methods for the detection of human beings based on a monitoring their respiratory motion. For that purpose, ultra-wideband sensors (radars) operating in the frequency band DC-5GHz can be used with advantage. The basic principle of respiratory motion detection consists in the identification of sensor signal components possessing a significant power in the frequency band 0.2–0.7 Hz (frequency band of a human respiratory rate) corresponding to a constant range between the target and radar. 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 a person will be introduced in this chapter. For that purpose, a combination of a method for the static person localization based on power-spectrum estimation using Welch periodogram referred to as WP-STAPELOC method and the Welch periodogram, MUSIC algorithm and Burg methods for the estimation of a fundamental harmonic of respiratory motion will be introduced. The performance of proposed procedure will be evaluated using a data obtained at experimental scenario. Moreover, a reference measurement will be performed in order to compare the results from UWB radar with the results from the optical sensor.