Concurrent Multi-Band UWB Radar Operation for Human Monitoring
I. Tokuçoğlu (TU Delft - Electrical Engineering, Mathematics and Computer Science)
F. Fioranelli – Mentor (Microwave Sensing, Signals & Systems)
M. Spirito – Graduation committee member (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Raf Roovers – Graduation committee member (NXP Semiconductors)
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Abstract
Ultra-Wideband (UWB) technology is currently widely in use in wireless communication and radar systems, with diverse applications ranging from imaging and tumor detection to multi-human detection and secure localization in mobile and automotive applications. In this context, mmWave systems are an emerging special class of UWB radar technology that employs short-wavelength electromagnetic waves.
With UWB radar technology, car cabin safety systems and tasks such as presence detection, occupancy localization, and driver health monitoring systems can be realized. Exploring effective means of presence detection and vital sign monitoring is crucial to improve automotive safety.
This thesis work presents a novel measurement setup for concurrent multi-radar, multi-band operation of both a 6-9 GHz UWB radar and a mmWave FMCW radar operating at 60 GHz. This addresses an unexplored area with the potential for advancements in non-contact vital sign monitoring that can leverage the advantages of each frequency range to improve performance. Furthermore, this work evaluates the benefits and trade-offs of the multi-band, multi-radar concurrent operation for presence detection, localization, and vital sign estimation applications, and evaluates the performance of the radars individually or in a combined, concurrent manner in the same use cases.
With a series of experimental results and a proposed processing pipeline for detection and association, the proposed concurrent multi-radar, multi-frequency operation achieves improved performance in presence detection by leveraging the unique advantages of each radar. Specifically, the high performance of TI radar in scenarios requiring angular resolution complements the strengths of Ranger5 in cases where one person occludes another.
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File under embargo until 20-09-2026