Eusar
EUSAR is the abbreviation for European Conference on Synthetic Aperture Radar (European SAR Conference).
founding
The international scientific-technological conference EUSAR was brought into being in 1996 in cooperation with FGAN (today Fraunhofer FHR ), DLR and VDE . Later the companies Airbus Defense and Space Friedrichshafen (formerly Dornier ) and Airbus Defense and Space Ulm (formerly: EADS ) were added as active partners. The emphasis on “European” indicates the authorship, the conference is open to all nations. SAR was treated as a sub-topic of radar technology by the existing radar conferences (e.g. IEEE , IEE , SEE) until the EUSAR was founded . With the dramatic advances in computer technology , digital technology and high frequency technology , the SAR was developed into an imaging sensor whose resolution is comparable to that of optical instruments. In addition, SAR has a number of capabilities that optical imaging systems do not. Due to its versatile application possibilities, especially in remote sensing , SAR has achieved global importance, so that the establishment of a separate conference specifically focused on SAR seemed necessary. The EUSAR is primarily dedicated to the radar sensor, its technologies including image-generating signal processing and image processing , but also offers a forum for users of SAR data.
The SAR principle
SAR (Synthetic Aperture Radar) is an imaging radar process that can deliver images in photo-like quality. The geometric resolution required for this is achieved by calculating a synthetic aperture instead of the real aperture of the antenna. The radar is located on board a moving platform, usually an airplane or satellite . It moves along a fictitious aperture (usually a straight line ), sends out microwave pulses and receives the echoes . These are digitized , saved and combined in the computer to form a synthetic antenna lobe . In this way, apertures several kilometers long can be created. The resolution currently achieved is below 10 × 10 cm. SAR has several advantages over optical imaging sensors:
- Long range (several 100 km). The range of optical systems in the earth's atmosphere is limited to about 10 km.
- The achievable resolution is in principle independent of the distance.
- SAR works day and night and in any weather.
SAR functions
- Illustration of the earth's surface
- 3-dimensional imaging and detection of moving objects using interferometric SAR
- Polarimetric SAR imaging (sending and receiving side, each vertically and horizontally polarized) can be used to classify objects
- Combination of polarimetric and interferometric SAR
- Use of the proper movement of objects for imaging (inverse SAR, ISAR )
- Bi- and multistatic SAR configurations, mainly military applications
- SAR with multi-channel antenna opens up additional capabilities: detection and position correction of moving objects, interference suppression.
- Multiple frequency surgery
application
- Cartography: Creation of 2- or 3-dimensional terrain maps
- Observation of natural phenomena such as volcanic activity, earthquakes , flood and storm disasters , desert development , dune migration , melting of the ice in polar regions , the nature of the snow cover , ocean pollution , marine salinity
- Agriculture: vegetation , soil moisture , deforestation
- Moving objects: road, air and ship traffic , satellites, ocean currents , icebergs
- Military : reconnaissance ; Detection of threats, classification of flying objects and ground vehicles, observation of troop movements, mine search
SAR / ISAR systems
- Space-based: ERS-1 ( European Remote Sensing Satellite ), ERS-2, Envisat-ASAR ( ESA ); ALOS / PALSAR (Japan); RADARSAT-1 , RADARSAT-2 (Canada), SIR-C, SRTM (Shuttle Radar Topography Mission, Germany, Italy, USA); TerraSAR -X, TerraSAR-L, TanDEM-X , TanDEM-L, SAR-Lupe (Germany); COSMO-Skymed (Italy);
- Airborne: AER, PAMIR, E-SAR, DO-SAR, Miranda 35/94, SUMATRA (Germany); APY-6 (USA); RAMSES (France)
- Soil: TIRA (Germany, see FHR );
- Multi-satellite concepts: CARTWHEEL, PENDULUM
The conference sponsors
The organization of the content (preparation of the conference program, management of the conference) is handled alternately by the four partners Fraunhofer FHR , DLR , Airbus Defense and Space , Friedrichshafen and Ulm . The aim is to allow research institutes (FHR, DLR) and industry to alternate in the conference management in order to give the conference both characteristics of research and industrial production in equal measure. Business support (advertising, conference venue, reception, publications, finances) lies with the VDE . Other (ideal) sponsors are IEEE, URSI and DGON. The German Research Foundation provides financial aid to enable authors in need to participate.
Previous events
The EUSAR takes place every two years. So far, conference locations in Germany have been selected, an event in other European countries and organization by the host country is not excluded in the future.
- 1996 Königswinter, Maritim-Hotel; Head: FGAN
- 1998 Friedrichshafen, Graf Zeppelin House; Head: Dornier GmbH (now EADS Astrium)
- 2000 Munich, Arabella-Parkhotel; Head: DLR
- 2002 Cologne, Hyatt-Regency Hotel; Head: FGAN
- 2004 Ulm, Edwin-Scharff-Haus; Head: EADS
- 2006 Dresden, conference center; Head: DLR
- 2008 Friedrichshafen, Graf Zeppelin House; Head: EADS Astrium
- 2010 Aachen, conference center; Head: Fraunhofer FHR (formerly FGAN)
- 2012 Nuremberg, Conference Center East; Head: EADS
- 2014 Berlin, Maritim-Hotel; Head: DLR
- 2016 Hamburg, Congress Center Hamburg; Head: Airbus Defense and Space , Friedrichshafen
- 2018 Aachen, Eurogress conference center; Head: Fraunhofer FHR (formerly FGAN FHR)
Attendees
Participants come from more than 30 countries on all five continents. 275 people took part in the EUSAR founding event in 1996. That number grew to over 500 in 2006.
literature
- [1] Conference proceedings EUSAR 1996, VDE Verlag, Berlin, ISBN 3-8007-2162-7
- [2] Conference proceedings EUSAR 1998, VDE Verlag, Berlin, ISBN 3-8007-2359-X
- [3] Conference proceedings EUSAR 2000, VDE Verlag, Berlin, ISBN 3-8007-2544-4
- [4] Conference proceedings EUSAR 2002, VDE Verlag, Berlin, ISBN 3-8007-2697-1
- [5] Conference proceedings EUSAR 2004, VDE Verlag, Berlin, ISBN 3-8007-2828-1
- [6] Conference proceedings EUSAR 2006, VDE Verlag, Berlin, ISBN 3-8007-2960-1
- [7] Conference proceedings EUSAR 2008, VDE Verlag, Berlin, ISBN 978-3-8007-3084-1
- [8] Conference proceedings EUSAR 2010, VDE Verlag, Berlin, ISBN 978-3-8007-3272-2
- [9] Conference proceedings EUSAR 2012, VDE Verlag, Berlin, ISBN 978-3-8007-3404-7
- [10] Conference proceedings EUSAR 2014, VDE Verlag, Berlin, ISBN 978-3-8007-3608-9
- [11] Conference proceedings EUSAR 2016, VDE Verlag, Berlin, ISBN 978-3-8007-3608-9
- [12] Conference proceedings EUSAR 2018, VDE Verlag, Berlin, ISBN 978-3-8007-4636-1