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Efficient Hybrid Stripmap/Spotlight SAR Raw Signal Simulation

Guida, R, Franceschetti, G, Iodice, A, Riccio, D and Ruello, G (2004) Efficient Hybrid Stripmap/Spotlight SAR Raw Signal Simulation In: IGARSS'04, 2004-09-20 - 2004-09-24, Anchorage (Alaska, USA).

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Abstract

Recently, a new operating mode for Synthetic Aperture Radar (SAR) system, referred to as hybrid stripmap/spotlight mode, has been presented [1-2]. In the hybrid acquisition mode the radar antenna beam is steered about a point farther away from the radar than the area being illuminated, thus generating microwave images with an azimuth resolution better than that achieved in the stripmap configuration, and a ground coverage better than the one of the spotlight configuration. The subject of design, processing and data interpretation for the hybrid SAR mode is gaining an increasing interest in the remote sensing scientific community. Consequently, a hybrid SAR raw signal simulator is strongly required, especially when real raw data are not available yet, to test processing algorithms and to help mission planning. In addition, to analyse the effects of processing errors and to verify the impact of different system design choices on the final image for different kinds of imaged scenes, an extended scene SAR raw signal simulator simulator is very useful: it is what we present in this paper. After showing that in this case a 2D Fourier domain approach is not viable, we demonstrate that a 1D range Fourier domain approach, followed by 1D azimuth time domain integration, is possible when some approximations, usually valid in the actual cases, are accepted.

Item Type: Conference or Workshop Item (Paper)
Additional Information: © 2004 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Surrey Space Centre
Depositing User: Symplectic Elements
Date Deposited: 10 Oct 2012 13:43
Last Modified: 23 Sep 2013 19:41
URI: http://epubs.surrey.ac.uk/id/eprint/726880

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