Radar Based Human Vital Sign Detection In Cars

A System Analysis

Bachelor thesis (2020)

Authors

S. Neji Electrical Engineering, Mathematics and Computer Science
R.P.C. Kooij Electrical Engineering, Mathematics and Computer Science

Contributors

F. Fioranelli Microwave Sensing, Signals & Systems - EEMCS (mentor)
Alexander Yarovoy Microwave Sensing, Signals & Systems - EEMCS (graduation committee member)
Carolina Varon Signal Processing Systems - EEMCS (graduation committee member)
Faculty
Electrical Engineering, Mathematics and Computer Science, Electrical Engineering, Mathematics and Computer Science
Copyright: © 2020 Saliha Neji, Roeland Kooij
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Published Date

30-06-2020

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

This thesis analyses different radar systems for sensing chest movement to detect human presence inside a car. The detection in this thesis is limited to sensing breathing rate, although heartbeat detection is considered a possibility. A comparison is made between CW-, FMCW-, pulsed- and UWB pulsed radar. UWB pulsed radar was chosen to be a suitable technology for this application. As a benchmark, the Xethru X4 SoC by Novelda is used. The parameters and the working of Xethru X4 are investigated. A suitable antenna for Xethru is designed and simulated. Different detection techniques are discussed. The feasibility of the Xethru X4 is tested by means of calculations in different settings. Based on these tests, the Xethru X4 is evaluated and concluded to be suitable for detecting human presence inside a car by means of vital sign detection.