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Two-look roll compensation for aircraft-borne interferometric SAR without phase unwrapping

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3 Author(s)
Bullock, R.J. ; Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK ; Brennan, P.V. ; Griffiths, H.D.

The two-look method for data-driven roll compensation of aircraft-borne interferometric synthetic aperture radar (SAR) is useful for platforms such as unmanned aerial vehicles lacking accurate inertial navigation units due to limitations on weight or cost. The accuracy of this method can be improved by an iterative implementation in which residual roll errors are removed progressively on each pass. However, phase unwrapping is required, which is inconvenient and difficult to automate. Proposed is an efficient method for eliminating phase unwrapping, facilitating an automatic iterative implementation.

Published in:

Electronics Letters  (Volume:41 ,  Issue: 6 )