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Repeat-pass interferometry with airborne synthetic aperture radar

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2 Author(s)
Gray, A.L. ; Canada Centre for Remote Sensing, Ottawa, Ont., Canada ; Farris-Manning, P.J.

It is shown that interference can be observed by coherently combining pairs of either X- or C-band airborne synthetic aperture radar (SAR) images from separate passes over the same test site. Coherence between separate images is obtained only if the aircraft is flown, and the data are processed in such a way that each resolution cell in the two images is viewed with very nearly the same geometry. Successful repeat-pass interferometric results were obtained from those passes flown by the CCRS Convair 580 aircraft with flight-line offsets of less than a few tens of meters. A summary of the experiment, the phase correction of nonrectilinear aircraft motion, and the subsequent data processing is provided

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:31 ,  Issue: 1 )