Communication
Version 1
Preserved in Portico This version is not peer-reviewed
Through-Wall Imaging Using Low-Cost FMCW Radar Sensors
Version 1
: Received: 22 February 2024 / Approved: 23 February 2024 / Online: 24 February 2024 (08:55:14 CET)
A peer-reviewed article of this Preprint also exists.
Paun, M. Through-Wall Imaging Using Low-Cost Frequency-Modulated Continuous Wave Radar Sensors. Remote Sens. 2024, 16, 1426. Paun, M. Through-Wall Imaging Using Low-Cost Frequency-Modulated Continuous Wave Radar Sensors. Remote Sens. 2024, 16, 1426.
Abstract
Many fields of human activity benefit from the ability to create images of obscured objects placed behind walls and to map their displacement in a noninvasive way. Usually, imaging devices like Synthetic Aperture Radars (SAR) and Ground Penetrating Radars (GPR) use expensive dedicated electronics which results in prohibitive prices. This paper presents the experimental implementation and the results obtained from an imaging system capable of performing SAR imaging and interferometric displacement mapping of targets located behind walls, as well as 3D GPR imaging using a low-cost general-purpose radar sensor. The proposed solution uses for the RF section of the system a K-band microwave radar sensor module implementing Frequency Modulated Continuous Wave operation. The low-cost sensor was originally intended for simple presence detection and ranging for domestic applications. The proposed system was tested in several scenarios and proved to operate as intended for a fraction of the cost of a commercial imaging device.
Keywords
Synthetic Aperture Radar; Ground Penetrating Radar; Frequency Modulated Continuous Wave; See Through Wall; SAR focusing; SAR Interferometry; Backprojection; 3D Imaging
Subject
Engineering, Electrical and Electronic Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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