A Theory of Multiaperture Along-Track Interferometric Synthetic Aperture Radar SCIE SCOPUS

Cited 6 time in WEB OF SCIENCE Cited 7 time in Scopus
Title
A Theory of Multiaperture Along-Track Interferometric Synthetic Aperture Radar
Author(s)
Ouchi, Kazuo; Yoshida, Takero; Yang, Chan-Su
KIOST Author(s)
Yang, Chan Su(양찬수)
Publication Year
2019-10
Abstract
In this letter, a novel theory is proposed to measure the velocity vector of moving targets such as ocean currents by multiaperture along-track interferometric synthetic aperture radar (MA-ATI SAR), utilizing the conventional dual-antenna ATI SAR data. In this system, the range component of the velocity vector is first computed with the conventional ATI SAR algorithm by correlating the two sets of complex images produced through the fore and aft antennas. For estimating the direction of the velocity vector, multilook/sublook processing is applied to two sets of range-compressed azimuth raw data. Now, there are four sets of complex subimages, two of which are forward-looking and the others are backward-looking. Then, from these subimage pairs, the two sublook interferograms of the corresponding directions are produced. The direction of the moving targets can be estimated either from the forward- and backward-looking azimuth velocity components, or directly from the interferometric phases. With this direction and the range velocity component, the velocity vectors of ocean currents and also moving hard targets on land and sea can be estimated.
ISSN
1545-598X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/510
DOI
10.1109/LGRS.2019.2906104
Bibliographic Citation
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, v.16, no.10, pp.1565 - 1569, 2019
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Subject
DUAL-BEAM INTERFEROMETRY; VELOCITY VECTOR; INTERNAL WAVES; TIME-DOMAIN; SAR; SIMULATION; INSAR
Keywords
Moving targets; multiaperture along-track InSAR; multilook; sublook processing; ocean current; velocity vector
Type
Article
Language
English
Document Type
Article
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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