A Ku-band geosynchronous Synthetic Aperture Radar mission analysis with medium transmitted power and medium-sized antenna

Author

Rodon, Josep Ruiz ; Broquetas, Antoni ; Guarnieri, Andrea Monti ; Rocca, Fabio

Author_Institution

Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya, Barcelona, Spain

fYear

2011

fDate

24-29 July 2011

Firstpage

2456

Lastpage

2459

Abstract

In this paper, the feasibility of a geosynchronous satellite for Synthetic Aperture Radar applications is assessed. The nearly fixed position of geosynchronous satellites offers new features to SAR acquisition such as the continuous monitoring of wide areas with short revisit times. A monostatic dedicated mission, working with moderated antenna sizes and transmitted powers with long integration time (several hours), is firstly presented and the main SAR parameters (PRF selection, power budget, ambiguities) analyzed. The system Point Spread Function is obtained from simulated raw data showing the system spatial resolution in a realistic orbital configuration.

Keywords

geophysical techniques; optical transfer function; synthetic aperture radar; Ku-band geosynchronous synthetic aperture radar mission analysis; PRF selection; SAR acquisition; SAR parameters; geosynchronous satellite; long integration time; medium transmitted power; moderated antenna sizes; monostatic dedicated mission; orbital configuration; power budget; short revisit times; synthetic aperture radar applications; system point spread function; system spatial resolution; Doppler shift; Image resolution; Orbits; Satellites; Synthetic aperture radar; Transmitting antennas; GEOSAR; SAR; geosynchronous;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6049708

Filename

6049708