Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/27
Title: An S-band zero-IF SFCW through-the-wall radar for range, respiration rate, and DOA estimation
Authors: Acar, Yunus Emre
Sarıtaş, İsmail
Yaldız, Ercan
Keywords: Averaging Delay-Line Cancellation (Adlc)
Clutter Rejection
Direction Of Arrival (Doa)
Localization
Radar
Respiration Rate (Rr)
Vital Signs
Fmcw Radar
Algorithm
Issue Date: 2021
Publisher: ELSEVIER SCI LTD
Abstract: This study presents a Zero-IF structured Stepped Frequency Continuous Wave (SFCW) radar system for range, respiration rate, and DOA estimation of the targets behind the walls. The radar hardware is a combination of SFCW and Uniform Linear Array (ULA) techniques. Four main improvements are done in signal processing. Averaging Delay Line Cancellation (ADLC) is proposed for moving-target indication. As a post-processing solution to the disruptive effects, a self-acting SVD-based algorithm is offered. The displacement signals of the targets are obtained after applying an additional phase extraction and wavelet-based filtering to lessen the phase discontinuities and noises. The Direction of Arrival (DOA) is estimated over the positive and negative range profiles of two separate antenna pairs. The median of these four angle values is used as the final DOA estimation. The performance of the system is tested with more than 150 experiments and compared with state-of-the-art studies.
URI: https://doi.org/10.1016/j.measurement.2021.110221
https://hdl.handle.net/20.500.13091/27
ISSN: 0263-2241
1873-412X
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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