The SRAL (Sar Radar ALtimeter) instrument is the core instrument of the topography mission carried on -board the Sentinel-3 satellite which is to be launched in 2013. A detailed overview of this instrument (on -going C/D phase) is given in terms of mission requirements, architecture and modes, budgets/performa nces and equipments.
['Y. Le Roy', 'M. Deschaux-Beaume', 'C. Mavrocordatos', 'Franck Borde']
SRAL, a radar altimeter designed to measure a wide range of surface types