SAR antenna design for ambiguity and multipath suppression
- 30 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 784-787 vol.2
- https://doi.org/10.1109/igarss.1993.322219
Abstract
A high resolution airborne synthetic aperture radar (SAR) has been developed at the Electromagnetics Institute (EMI) for remote sensing applications. The paper considers the radiation of antennas for a SAR system from a systems perspective. The basic specifications of an idealised antenna are obtained from the required swath and the azimuth footprint needed for the SAR processing. The radiation from a real antenna causes unwanted signal returns that lead to intensity variations (multipath) and ghost echoes (ambiguity). Additional specifications are deduced by considering these signals. The requirements are illustrated by examples from a realised dual polarised antenna for a C-band SAR.Keywords
This publication has 3 references indexed in Scilit:
- A new C-band SAR for ERS-1 underflightsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- The Danish SAR system: design and initial testsIEEE Transactions on Geoscience and Remote Sensing, 1991
- Ambiguities in Spacebornene Synthetic Aperture Radar SystemsIEEE Transactions on Aerospace and Electronic Systems, 1983