Krieger, Gerhard and Gebert, Nicolas and Moreira, Alberto (2004) Digital Beamforming and Non-Uniform Displaced Phase Centre Sampling in Bi- and Multistatic SAR. In: European Conference on Synthetic Aperture Radar (EUSAR), 2, pp. 563-566. VDE Verlag. European Conference on Synthetic Aperture Radar (EUSAR), 2004-05-25 - 2004-05-27, Ulm, Germany. ISBN 3-8007-2828-1.
![]()
|
PDF
212kB |
Abstract
The displaced phase centre (DPC) technique will enable a wide swath SAR with high azimuth resolution. In a classic DPC system, the PRF has to be chosen such that the SAR carrier moves just one half of its antenna length between subsequent radar pulses. Any deviation from this PRF will result in a non-uniform sampling of the synthetic aperture. This paper shows that an unambiguous reconstruction of the SAR signal is also possible in case of such a non-optimum PRF. For this, an innovative reconstruction algorithm is derived, which enables a recovery of the unambiguous Doppler spectrum also in case of a non-uniform sampling of the synthetic aperture. This algorithm will also have a great potential for multistatic satellite constellations as well as the dual receive antenna mode in Radarsat 2 and TerraSAR-X.
Item URL in elib: | https://elib.dlr.de/6178/ | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||
Title: | Digital Beamforming and Non-Uniform Displaced Phase Centre Sampling in Bi- and Multistatic SAR | ||||||||||||||||
Authors: |
| ||||||||||||||||
Date: | 2004 | ||||||||||||||||
Journal or Publication Title: | European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||||||
Refereed publication: | No | ||||||||||||||||
Open Access: | Yes | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Volume: | 2 | ||||||||||||||||
Page Range: | pp. 563-566 | ||||||||||||||||
Publisher: | VDE Verlag | ||||||||||||||||
ISBN: | 3-8007-2828-1 | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | ambiguity suppression, digital beamforming, multistatic SAR, high resolution wide swath (HRWS) SAR | ||||||||||||||||
Event Title: | European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||||||
Event Location: | Ulm, Germany | ||||||||||||||||
Event Type: | international Conference | ||||||||||||||||
Event Dates: | 2004-05-25 - 2004-05-27 | ||||||||||||||||
Organizer: | VDE ITG | ||||||||||||||||
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 Microwaves and Radar Institute > Spaceborne SAR Systems | ||||||||||||||||
Deposited By: | Krieger, Dr.-Ing. Gerhard | ||||||||||||||||
Deposited On: | 11 Aug 2006 | ||||||||||||||||
Last Modified: | 31 Jul 2019 19:14 |
Repository Staff Only: item control page