Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive Radar

Although the classic radar equation has been widely used to analyze the link budget of an automotive radar, it is valid only when the targets are located in the far-field region of the transmitted field and the receiving antenna is located in the far-field region of the scattered field. This paper c...

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Main Authors: Kyoung-Sub Oh, Pei-Yuan Qin, Dong-Wook Seo
Format: Article
Language:English
Published: The Korean Institute of Electromagnetic Engineering and Science 2024-03-01
Series:Journal of Electromagnetic Engineering and Science
Subjects:
Online Access:https://www.jees.kr/upload/pdf/jees-2024-2-r-216.pdf
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author Kyoung-Sub Oh
Pei-Yuan Qin
Dong-Wook Seo
author_facet Kyoung-Sub Oh
Pei-Yuan Qin
Dong-Wook Seo
author_sort Kyoung-Sub Oh
collection DOAJ
description Although the classic radar equation has been widely used to analyze the link budget of an automotive radar, it is valid only when the targets are located in the far-field region of the transmitted field and the receiving antenna is located in the far-field region of the scattered field. This paper confirms this hypothesis using measured and simulated data for short-range radars. Furthermore, a novel radar equation based on the Fresnel diffraction formula is proposed for application in situations where the receiving antenna is located in the radiative near-field region (or Fresnel region) of a target, but the target is situated in the far-field region of the transmitting antenna. In addition, the proposed radar equation is assessed by comparing the measured and simulated data.
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spelling doaj.art-77dad1a8e0d14c0abca01e0ddacb9c222024-04-12T04:10:31ZengThe Korean Institute of Electromagnetic Engineering and ScienceJournal of Electromagnetic Engineering and Science2671-72552671-72632024-03-0124216116910.26866/jees.2024.2.r.2163654Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive RadarKyoung-Sub Oh0Pei-Yuan Qin1Dong-Wook Seo2 Smart Radar System Inc., Seongnam, Korea Global Big Data Technologies Centre, Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, Australia Division of Electronics and Electrical Information Engineering/Interdisciplinary Major of Maritime AI Convergence, Korea Maritime & Ocean University, Busan, KoreaAlthough the classic radar equation has been widely used to analyze the link budget of an automotive radar, it is valid only when the targets are located in the far-field region of the transmitted field and the receiving antenna is located in the far-field region of the scattered field. This paper confirms this hypothesis using measured and simulated data for short-range radars. Furthermore, a novel radar equation based on the Fresnel diffraction formula is proposed for application in situations where the receiving antenna is located in the radiative near-field region (or Fresnel region) of a target, but the target is situated in the far-field region of the transmitting antenna. In addition, the proposed radar equation is assessed by comparing the measured and simulated data.https://www.jees.kr/upload/pdf/jees-2024-2-r-216.pdfautomotive radarhuman detectionnear fieldradar equationshort-range radar
spellingShingle Kyoung-Sub Oh
Pei-Yuan Qin
Dong-Wook Seo
Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive Radar
Journal of Electromagnetic Engineering and Science
automotive radar
human detection
near field
radar equation
short-range radar
title Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive Radar
title_full Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive Radar
title_fullStr Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive Radar
title_full_unstemmed Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive Radar
title_short Near-Field Radar Equation Based on Fresnel Diffraction Formula to Detect Short-Ranged Targets for Automotive Radar
title_sort near field radar equation based on fresnel diffraction formula to detect short ranged targets for automotive radar
topic automotive radar
human detection
near field
radar equation
short-range radar
url https://www.jees.kr/upload/pdf/jees-2024-2-r-216.pdf
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AT peiyuanqin nearfieldradarequationbasedonfresneldiffractionformulatodetectshortrangedtargetsforautomotiveradar
AT dongwookseo nearfieldradarequationbasedonfresneldiffractionformulatodetectshortrangedtargetsforautomotiveradar