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Proceedings Paper

Bistatic SAR for Earth observation
Author(s): Antonio Moccia
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Paper Abstract

Bistatic radar is an active microwave sensor operating with separated transmitting and receiving antennae. This paper deals with a spacebome mission of a bistatic synthetic aperture radar based on a small satellite flying in formation with ENVISAT along parallel orbits, and equipped with a receiving only microwave system, which catches the ASAR echoes. The proposed system does not require any modification of existing ENVISAT design and operation; in fact it is assumed that ENVISAT is non-cooperative. After an introduction to the original scientific activities and applications achievable using bistatic data as further input thanks to the capability of a multi-angle observation, the paper presents numerical results of a simulation aimed at characterising some radiometric and geometric aspects of bistatic imagery. In particular, the effects of a frequency offset, caused by differences in local oscillators, and of variable bistatic geometry, caused by spacecraft separation along the orbit, are put in evidence.

Paper Details

Date Published: 21 December 2000
PDF: 9 pages
Proc. SPIE 4173, SAR Image Analysis, Modeling, and Techniques III, (21 December 2000); doi: 10.1117/12.410642
Show Author Affiliations
Antonio Moccia, Univ. degli Studi di Napoli Federico II (Italy)

Published in SPIE Proceedings Vol. 4173:
SAR Image Analysis, Modeling, and Techniques III
Francesco Posa; Luciano Guerriero, Editor(s)

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