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Calibration of DLR's Experimental Airborne SAR System E-SAR.

Zink, M. (Vortragender) and Horn, R. (1993) Calibration of DLR's Experimental Airborne SAR System E-SAR. CEOS SAR-Calibration Workshop, ESTEC, Noordwijk, The Netherlands, 20.-24.9.93..

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Abstract

Operational calibration of E-SAR requires both external calibration and internal monitoring of the sensor including a recording of instabilities of the transmit power or the receiver gain. Extensive measurements of the receiver gain curve for different settings of the automatic gain control (AGC) have been performed in the laboratory. The output power is being controlled even during data takes using power sensors at the antenna input. For the purpose of external calibration we deploy trihedral corner reflectors in the area surrounding DLR and image these targets at the beginning and the end of each campaign. The analysis of the corresponding image data allows to derive the absolute calibration factor and gives an estimate of the remaining error in radiometric corrections.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1993,
Title:Calibration of DLR's Experimental Airborne SAR System E-SAR.
Authors:
AuthorsInstitution or Email of Authors
Zink, M. (Vortragender)UNSPECIFIED
Horn, R.UNSPECIFIED
Date:1993
Status:Published
Keywords:Airborne SAR Calibration, Internal Monitoring, External Calibration
Event Title:CEOS SAR-Calibration Workshop, ESTEC, Noordwijk, The Netherlands, 20.-24.9.93.
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:UNSPECIFIED
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institut für Hochfrequenztechnik
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 08:52

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