New Insights into Ambiguities in Quad-Pol SAR

Villano M, Krieger G, Moreira A (2017)

Publication Type: Journal article

Publication year: 2017


Publisher: Institute of Electrical and Electronics Engineers Inc.

Book Volume: 55

Pages Range: 3287-3308

Journal Issue: 6


DOI: 10.1109/TGRS.2017.2667886


Quadrature-polarimetric (quad-pol) synthetic aperture radar (SAR) is a well-established technique which has numerous applications in remote sensing. However, spaceborne quad-pol SAR systems are often constrained by severe range and azimuth ambiguities. A deep understanding of the nature of ambiguities in conventional, hybrid, and {$\pm$}{\ensuremath{\pi}}/4 quad-pol SAR allows a correct evaluation of the ambiguity-to-signal ratio and the design of systems optimized for ambiguity suppression. In that respect azimuth phase coding and merging data available from both cross-polarized channels play an important role. The results of this work are relevant not only for the design of future spaceborne quad-pol SAR systems, including staggered SAR ones, but also for the optimal exploitation of quad-pol SAR systems currently in operation.

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Villano, M., Krieger, G., & Moreira, A. (2017). New Insights into Ambiguities in Quad-Pol SAR. IEEE Transactions on Geoscience and Remote Sensing, 55(6), 3287-3308.


Villano, Michelangelo, Gerhard Krieger, and Alberto Moreira. "New Insights into Ambiguities in Quad-Pol SAR." IEEE Transactions on Geoscience and Remote Sensing 55.6 (2017): 3287-3308.

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