From the expected scientific applications to the functional specifications, products and performance of the SABRINA missions

Orbital planning and formation flying control of SABRINA mission will allow different observation geometries characterized by inter satellites distances (baseline) variable from hundreds meters to some hundreds of kilometers. In a so vast scenario, a wide range of bistatic techniques are applicable and testable, ranging from cross and along track interferometry to multi-channel techniques and large baseline bistatic observations. This paper contains a brief description of all the bistatic techniques proposed for the SABRINA mission, most of them never experimented previously from two spaceborne platforms. Important scientific and technological applications are associated to each technique: moving target indication, topography, geology, geomorphology, oceanography, biomass evaluation, improvement of monostatic data quality, accurate pointing and attitude determination. Great effort is devoted to individuate the main functional specifications need to obtain the individuated applicative products and the expected performance of the SABRINA mission.