Human respiration localization method using UWB linear antenna array

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Abstract

Human respiration is the basic vital sign in remote monitoring. There has been remarkable progress in this area, but some challenges still remain to obtain the angle-of-arrival (AOA) and distinguish the individual signals. This paper presents a 2D noncontact human respiration localization method using Ultra-Wideband (UWB) 1D linear antenna array. The imaging reconstruction based on beamforming is used to estimate the AOA of the human chest. The distance-slow time 2D matrix at the estimated AOA is processed to obtain the distance and respiration frequency of the vital sign. The proposed method can be used to isolate signals from individual targets when more than one human object is located in the surveillance space. The feasibility of the proposed method is demonstrated via the simulation and experiment results.

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Liu, Y., Wu, S., Chen, J., Fang, G., & Yin, H. (2015). Human respiration localization method using UWB linear antenna array. Journal of Sensors, 2015. https://doi.org/10.1155/2015/601926

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