Occupancy Detection Using a Frequency-Modulated Phase- and Self-Injection-Locked (FMPSIL) Radar and Two-Stage Generalized Likelihood Ratio Test (GLRT) Algorithm

This study proposed a frequency-modulated phase- and self-injection-locked (FMPSIL) radar for occupancy detection. Compared to the conventional range-Doppler map, which performs occupancy detection by obtaining the vital sign of the subject using 2-D fast Fourier transform (2-D-FFT), this study prop...

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Vydané v:	IEEE transactions on microwave theory and techniques Ročník 72; číslo 8; s. 4908 - 4918
Hlavní autori:	Shih, Ju-Yin, Zhong, Ji-Xun, Wang, Fu-Kang
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	New York IEEE 01.08.2024 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:	Algorithms Computational efficiency Continuous wavelet transforms Cost analysis Detection algorithms Fast Fourier transformations Frequency conversion Frequency locking Frequency modulation Frequency-modulated continuous wave (FMCW) generalized likelihood ratio test (GLRT) Injection-locked oscillators Likelihood ratio Moving targets occupancy detection Phase frequency detectors phase- and self-injection-locked (PSIL) radar Probability density function probability density function (pdf) Probability density functions Radar detection Sensors Signal detection Target detection Temperature sensors Time domain analysis
ISSN:	0018-9480, 1557-9670
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Abstract	This study proposed a frequency-modulated phase- and self-injection-locked (FMPSIL) radar for occupancy detection. Compared to the conventional range-Doppler map, which performs occupancy detection by obtaining the vital sign of the subject using 2-D fast Fourier transform (2-D-FFT), this study proposed a two-stage generalized likelihood ratio test (GLRT) algorithm to overcome the leakage problem in the spectrum and increase occupancy detection accuracy. The use of the probability density function (pdf)-based GLRT analysis in the time domain reduced the required computational cost and observation time. To demonstrate the feasibility of the proposed two-stage GLRT algorithm, experiments were conducted for a 600-min dataset in a cluttered environment, the algorithm achieved a detection accuracy of 97.32% at an observation time of 5 s for a single moving target, and multitarget occupancy detection was also achieved.
AbstractList	This study proposed a frequency-modulated phase- and self-injection-locked (FMPSIL) radar for occupancy detection. Compared to the conventional range–Doppler map, which performs occupancy detection by obtaining the vital sign of the subject using 2-D fast Fourier transform (2-D-FFT), this study proposed a two-stage generalized likelihood ratio test (GLRT) algorithm to overcome the leakage problem in the spectrum and increase occupancy detection accuracy. The use of the probability density function (pdf)-based GLRT analysis in the time domain reduced the required computational cost and observation time. To demonstrate the feasibility of the proposed two-stage GLRT algorithm, experiments were conducted for a 600-min dataset in a cluttered environment, the algorithm achieved a detection accuracy of 97.32% at an observation time of 5 s for a single moving target, and multitarget occupancy detection was also achieved.
Author	Shih, Ju-Yin Zhong, Ji-Xun Wang, Fu-Kang
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SubjectTerms	Algorithms Computational efficiency Continuous wavelet transforms Cost analysis Detection algorithms Fast Fourier transformations Frequency conversion Frequency locking Frequency modulation Frequency-modulated continuous wave (FMCW) generalized likelihood ratio test (GLRT) Injection-locked oscillators Likelihood ratio Moving targets occupancy detection Phase frequency detectors phase- and self-injection-locked (PSIL) radar Probability density function probability density function (pdf) Probability density functions Radar detection Sensors Signal detection Target detection Temperature sensors Time domain analysis
Title	Occupancy Detection Using a Frequency-Modulated Phase- and Self-Injection-Locked (FMPSIL) Radar and Two-Stage Generalized Likelihood Ratio Test (GLRT) Algorithm
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