Repeat-pass interferometry with airborne synthetic aperture radar

Author

Gray, A. Laurence ; Farris-Manning, Peter J.

Author_Institution

Canada Centre for Remote Sensing, Ottawa, Ont., Canada

Volume

31

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

180

Lastpage

191

Abstract

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

Keywords

geophysical techniques; remote sensing by radar; synthetic aperture radar; 3.9 to 6.2 GHz; 5.2 to 10.9 GHz; C-band; SAR; SHF; X-band; airborne synthetic aperture radar; geophysics; images; imaging; interference; land surface; measurement; microwave radar; nonrectilinear aircraft motion; remote sensing; repeat-pass interferometric; technique; Aircraft; Area measurement; Coherence; Extraterrestrial measurements; Optical interferometry; Satellites; Spaceborne radar; Surface topography; Synthetic aperture radar; Testing;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.210459

Filename

210459