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Sector Imaging Radar for Enhanced Vision

Krieger, Gerhard and Mittermayer, Josef and Buckreuss, Stefan and Wendler, Michael and Sutor, Thomas and Witte, Franz and Moreira, Alberto (2003) Sector Imaging Radar for Enhanced Vision. Aerospace Science and Technology, 7 (2), pp. 147-158. Elsevier. DOI: 10.1016/S1270-9638(02)01189-6. ISSN 1270-9638.

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Official URL: http://www.sciencedirect.com/science/journal/12709638


SIREV (Sector Imaging Radar for Enhanced Vision) is an innovative airborne radar system which can supply high-quality images in any desired direction under almost every weather condition. In contrast to synthetic aperture radar (SAR) systems, no relative motion between sensor and targets is required in SIREV. The high frame repetition frequency in SIREV allows to detect even very rapid changes in the imaged scenes. Besides providing a map of the earth s surface, the complex-valued radar images can be further processed to supply additional information about the topography and objects in the field of view. A fast processing algorithm has been developed for SIREV which allows a very accurate, phase preserving and efficient image formation. A prototype of a forward-looking SIREV system has been built up at the German Aerospace Center and raw data were obtained by a first demonstration flight using a helicopter as a moving platform. Motion errors of the platform could be extracted from the range compressed raw data avoiding the need of an inertial navigation system. The data processing results show good agreement with the theory. After image formation, coherent and incoherent image averaging processes have been applied to improve the image quality. The evaluation of the computational effort shows that a real-time hardware realization can be carried out using off-the-shelf digital components.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Sector Imaging Radar for Enhanced Vision
AuthorsInstitution or Email of Authors
Krieger, GerhardUNSPECIFIED
Mittermayer, JosefUNSPECIFIED
Buckreuss, StefanUNSPECIFIED
Wendler, MichaelUNSPECIFIED
Moreira, AlbertoUNSPECIFIED
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 147-158
Keywords:Forward Looking Radar, Enhanced Vision, Near Field Digital Beamforming, Situation Awareness, SAR
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 Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Dr.-Ing. Gerhard Krieger
Deposited On:31 Jan 2006
Last Modified:06 Jan 2010 19:50

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