A New Concept of Synthetic Aperture Instrument for High Resolution Earth Observation from High Orbits
作者： Eric Thomas , Frederic Falzon , Philippe Blanc
DOI:
关键词: Physics 、 Synthetic aperture radar 、 Field of view 、 Orbit (dynamics) 、 Optics 、 Optical instrument 、 Fizeau interferometer 、 Aperture synthesis 、 Earth observation 、 Astronomical interferometer
摘要: Abstract : High Resolution Earth Observation from high orbits (e.g. Geostationnary) requires the use of large diameter telescopes, unfeasible if considering monolithic concepts. It is necessary, to circumvent this problem, consider a segmented instrument, turning it into feasible concept that can be put orbit. Optical Aperture Synthesis (OAS) considered as solution for HR observation orbits. In paper, we describe new OAS imaging instrument (under study in Alcatel Space Research Department [1]) having variable resolution and field view by adopting re-decomposition basic Michelson or Fizeau interferometer schemes. addition providing power view, particularly robust sub-systems failure since shows natural redundancy its capabilities.
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