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GNSS Reflectometry and Passive Radar at DLR

Börner, Thomas (2008) GNSS Reflectometry and Passive Radar at DLR. In: Proceedings of the ESA Workshop ACES and Furire GNSS-based Earth Observation and Navigation, Seite 15. ESA Workshop on ACES and FUTURE GNSS-Based EARTH OBSERVATION and NAVIGATION, 2008-05-26 - 2008-05-27, München, Germany.

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The presentation mainly summarises a planned GNSS reflectometry satellite mission that has been proposed by the Microwaves and Radar Institute to the DLR programme board in close cooperation with the GFZ Potsdam. The proposal was driven by the possible opportunity to use the DLR TET-1/-2 (Technologie Erprobungs Träger, very similar to the BIRD satellite bus) platform for a mission based on GNSS technology. The main instruments comprise Javad GNSS receivers (1- and multi-frequency), GNSS antennas plus a phased array beam-steerable reflectometer antenna (passive radar), an SLR retro reflector and a VLBI. The goals of the mission are • GNSS-based remote sensing for atmosphere, ionosphere, oceans, ice, soil (moisture), etc. using radio occultation and reflectometry • Precise orbit determination (POD) and co-location of geodetic methods from space (reference systems, gravity field, etc.) • Development of technologies and know-how for future micro satellite constellations (formation flights) using GNSS • Passive radar for altimetry and scatterometry using a beam-steerable antenna • Antenna development for passive radar, including space qualification A number of possible applications and experiments have been identified, particularly in the oceanographic field, i.e. sea level estimation (altimetry), determination of ocean wave spectra (2D), sea roughness and swells (scatterometry), retrieval of wind speeds, sea ice parameters and the estimation of ocean wave orbital velocities. Finally also the possibility of using a large constellation of such satellites for Tsunami detection is taken into account. Additional applications could be soil moisture extraction, ionospheric and atmospheric effects and land mapping (clutter). It is not yet decided whether the mission concept will be considered for TET-2 or not. However, it should be clearly pointed out that such an instrument would be the first complete demonstration of ESAs PARIS concept [Martin-Neira et al. 1993] from space and could thus serve the scientific community with very valuable information for future developments in this area.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:GNSS Reflectometry and Passive Radar at DLR
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID
Datum:Mai 2008
Erschienen in:Proceedings of the ESA Workshop ACES and Furire GNSS-based Earth Observation and Navigation
Referierte Publikation:Nein
In Open Access:Nein
In ISI Web of Science:Nein
Seitenbereich:Seite 15
Stichwörter:GNSS, reflectometry, phased array, digital beam-steering, oceanography, Tsunami
Veranstaltungstitel:ESA Workshop on ACES and FUTURE GNSS-Based EARTH OBSERVATION and NAVIGATION
Veranstaltungsort:München, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2008-05-26 - 2008-05-27
Veranstalter :Technische Universität München - IAPG
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben SAR-Expert-Support-Lab (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Börner, Dr.rer.nat. Thomas
Hinterlegt am:10 Jun 2008
Letzte Änderung:12 Dez 2013 20:31

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