Detection of Quasi-Static Trapped Human Being Using Mono-Static UWB Life-Detection Radar

In practical situations such as hostage rescue, earthquake and other similar events, the ultra-wideband (UWB) life-detection radar echo response from respiration motion of trapped person is always quasi-/non-periodic in frequency or very weak amplitude, which can be called quasi-static vital sign. Although it an extremely difficult task, considering economic cost, detection ability traditional UWB radars with only a pair transceiver antennas desired to enhanced for locating human being. This article proposes two different methods beings through single/multiple observation points, corresponds single-/multi-station operating mode, respectively. Proof-of-principle experiments were carried out by our designed prototypes, validating effectiveness proposed methods.