elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Weights Estimation of Phased Arrays moving in a Test Field

Molkenthin, Thomas and Fischer, Jens and Hounam, David and Schwerdt, Marco (2006) Weights Estimation of Phased Arrays moving in a Test Field. In: European Conference on Synthetic Aperture Radar (EuSAR) (027), p. 4. VDE Verlag. European Conference on Synthetic Aperture Radar (EUSAR), 2006-05-16 -2006-05-18, Dresden, Germany. ISBN 3-8007-2960-1.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
230kB

Official URL: http://www.vde-verlag.de

Abstract

Due to the high performance and degree of flexibility of microwave instruments using phased array antennas, a comprehensive characterisation of the antenna is essential and a major challenge [1]. New concepts are needed to keep the costs and effort acceptable. A new characterization technique is proposed, the so-called Weight-Estimation Method (WEM), which permits the exitation coefficients, or weights of the array elements to be estimated from a limited number of far-field measurements. With these weights, i.e the gains and phase settings applied to the elements of the phased array, the complete antenna pattern in the range of +/- 90 degree about the boresight can be derived. The concept is applicable for any phased array system sensing electromagnetic signals. The paper describes the measurement concept, the estimation method and presents simulated results for measurements in a compact range and with the antenna in motion. The method was developed to characterize phased array antennas of synthetic aperture radars (SAR) and promises to simplify the on-board calibration circuitry of future instruments.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Weights Estimation of Phased Arrays moving in a Test Field
Authors:
AuthorsInstitution or Email of Authors
Molkenthin, ThomasUNSPECIFIED
Fischer, JensUNSPECIFIED
Hounam, DavidUNSPECIFIED
Schwerdt, MarcoUNSPECIFIED
Date:May 2006
Journal or Publication Title:European Conference on Synthetic Aperture Radar (EuSAR)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Editors:
EditorsEmail
VDE Verlag, UNSPECIFIED
Publisher:VDE Verlag
ISBN:3-8007-2960-1
Status:Published
Keywords:Phased Array, Calibration, Characterization, Weights Estimation, WEM, Airborne SAR, Spaceborne SAR, antenna pattern
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Dresden, Germany
Event Type:international Conference
Event Dates:2006-05-16 -2006-05-18
Organizer:VDE
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 SAR-Expert-Support-Lab (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Microwave Systems
Microwaves and Radar Institute
Deposited By: Thomas Molkenthin
Deposited On:02 Jun 2006
Last Modified:12 Dec 2013 20:19

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.