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Optical fiber reach extended FMCW radar for remote respiratory tracking
Author(s) -
Frejstrup Suhr L.,
Monroy I. T.,
Olmos J. J. Vegas
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30284
Subject(s) - radar , transmitter , microwave , antenna (radio) , optical fiber , electronic engineering , transmission (telecommunications) , continuous wave radar , computer science , engineering , optics , electrical engineering , telecommunications , physics , radar imaging , channel (broadcasting)
Wireless monitoring of human vital signs such as breathing rate is a nonintrusive alternative to contemporary solutions relying on physical contact. To ease the installment, fiber optical transmission is used to extend the reach from the transmitter and receiver circuitry to the antenna subsystem. In this paper, a frequency modulated carrier wave radar, operating at 25.7–26.6 GHz and utilizing optical fiber extension, was experimentally demonstrated to accurately recover the breathing rate of a human placed 1 m away from the radar antennas. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:353–356, 2017