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HIGH ORBIT ACCURACY [1 record]

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Record 1 2007-01-31

English

Subject field(s)
  • Orbital Stations
CONT

ENVISAT/ASAR may be calibrated using the ERS [European Remote Sensing Satellite] instrument. Two SAR [synthetic aperture radar] images of the same area are required and at least one strong point-like target must be visible in both scenes. The target response should originate from the same stable scatterer. For the technique a very coarse digital elevation model (DEM) of the scene is suitable. The method bases on the very well-known timing parameters and high orbit accuracy of the ERS instrument (5 cm radial and 15 cm along track orbit accuracy).

French

Domaine(s)
  • Stations orbitales

Spanish

Campo(s) temático(s)
  • Estaciones orbitales
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