Modifications required to a SAR constellation mission are addressed in order to achieve bistatic observations under a range of bistatic angles, in a cost effective and flexible fashion. In particular, the paper investigates achievable performance deriving from an evolution of COSMO/SkyMed towards bistatic applications. A mathematical model is presented, which allows evaluation of bistatic angles as a function of latitude and longitude, on the basis of orbits’ propagation and spherical trigonometry. Results show that while nodal separation increases, a target is observed under a variable bistatic angle, which is not an increasing monotonic function of time due to the varying position of orbits’ intersections and thanks to electronic beam steering capability.
Gathering SAR data under different bistatic angle: a new potential of COSMO/SkyMed constellation / Fasano, Giancarmine; M., D'Errico. - ELETTRONICO. - IAA-B5-0313P:(2005), pp. 1-8. (Intervento presentato al convegno 5th IAA Symposium on Small Satellites for Earth Observation tenutosi a Berlino nel Aprile 2005).
Gathering SAR data under different bistatic angle: a new potential of COSMO/SkyMed constellation
FASANO, GIANCARMINE;
2005
Abstract
Modifications required to a SAR constellation mission are addressed in order to achieve bistatic observations under a range of bistatic angles, in a cost effective and flexible fashion. In particular, the paper investigates achievable performance deriving from an evolution of COSMO/SkyMed towards bistatic applications. A mathematical model is presented, which allows evaluation of bistatic angles as a function of latitude and longitude, on the basis of orbits’ propagation and spherical trigonometry. Results show that while nodal separation increases, a target is observed under a variable bistatic angle, which is not an increasing monotonic function of time due to the varying position of orbits’ intersections and thanks to electronic beam steering capability.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.