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Highly Accurate Radar Cross Section and Transfer Function Measurement of a Digital Calibration Transponder without Known Reference - Part I: Measurement & Results

Reimann, Jens and Büchner, Anna Maria and Raab, Sebastian and Weidenhaupt, Klaus Frank and Jirousek, Matthias and Schwerdt, Marco (2023) Highly Accurate Radar Cross Section and Transfer Function Measurement of a Digital Calibration Transponder without Known Reference - Part I: Measurement & Results. Remote Sensing. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/rs15041153. ISSN 2072-4292.

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Abstract

Active Radar Calibrators (ARC), also called calibration transponders, are often used as reference targets for absolute radiometric calibration of radar systems due to their large achievable Radar Cross Section (RCS). But before using a transponder as a reference target, the hardware has to be calibrated itself. A novel method, called three-transponder-method, was proposed some years ago and allows for RCS calibration of digital transponders without using any RCS target as reference. In this paper, this technique is further refined and applied to a setup utilizing only one digital transponder. The accurate measurement design is described and a novel, elaborated data processing scheme is developed to minimize remaining noise and clutter effects in the data. A comprehensive error analysis will be presented in the second part of this paper.

Item URL in elib:https://elib.dlr.de/192458/
Document Type:Article
Title:Highly Accurate Radar Cross Section and Transfer Function Measurement of a Digital Calibration Transponder without Known Reference - Part I: Measurement & Results
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Reimann, JensUNSPECIFIEDhttps://orcid.org/0000-0002-0650-9073UNSPECIFIED
Büchner, Anna MariaUNSPECIFIEDhttps://orcid.org/0000-0002-3827-7932UNSPECIFIED
Raab, SebastianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weidenhaupt, Klaus FrankUNSPECIFIEDhttps://orcid.org/0000-0003-2160-8018UNSPECIFIED
Jirousek, MatthiasUNSPECIFIEDhttps://orcid.org/0000-0003-2106-9245UNSPECIFIED
Schwerdt, MarcoUNSPECIFIEDhttps://orcid.org/0000-0002-0045-3726UNSPECIFIED
Date:20 February 2023
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.3390/rs15041153
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
ISSN:2072-4292
Status:Published
Keywords:RCS measurement; ARC; reference target; SAR; transponder; absolute radiometric calibration
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - SAR methods
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Reimann, Jens
Deposited On:20 Feb 2023 14:27
Last Modified:07 Mar 2024 11:43

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