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TerraSAR-X Azimuth Antenna Steering and Antenna Pointing Geometry

Wollstadt, Steffen (2009) TerraSAR-X Azimuth Antenna Steering and Antenna Pointing Geometry. Project Report. HR-SSE-TN-SW05, 15 S.

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Abstract

The purpose of this report is to describe the TerraSAR-X antenna pointing geometry, especially w.r.t. the azimuth steering angle and the pointing accuracy. The azimuth steering angle is related to the squint angle. This means that the pointing accuracy directly translates into a squint angle error and therefore also into a Doppler centroid inaccuracy. Therefore the azimuth steering angle is evaluated w.r.t. to the TerraSAR-X azimuth reference antenna patterns and w.r.t. the calculated antenna pointing vector. The deviations are discussed. The pointing vector is necessary to find the intersection with the used earth model and finally to determine the satellite slant range geometry. From this geometry, parameters like e.g. the Doppler centroid or the B-parameter can be derived.

Item URL in elib:https://elib.dlr.de/61935/
Document Type:Monograph (Project Report)
Title:TerraSAR-X Azimuth Antenna Steering and Antenna Pointing Geometry
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wollstadt, SteffenUNSPECIFIEDUNSPECIFIED
Date:2009
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:15
Status:Published
Keywords:azimuth antenna steering, antenna pointing, pointing accuracy, Doppler centroid, TerraSAR-X
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Studien zu neuen EO-Missionen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Wollstadt, Steffen
Deposited On:28 Dec 2009 21:53
Last Modified:17 Nov 2010 13:23

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