MULTI-APERTURE ALONG-TRACK INTERFEROMETRIC (MAATI) SAR FOR VELOCITY VECTOR ESTIMATION OF OCEAN CURRENTS USING CONVENTIONAL ATI SAR DATA

Title
MULTI-APERTURE ALONG-TRACK INTERFEROMETRIC (MAATI) SAR FOR VELOCITY VECTOR ESTIMATION OF OCEAN CURRENTS USING CONVENTIONAL ATI SAR DATA
Author(s)
Kazuo Ouchi; Takero Yoshida; 양찬수
KIOST Author(s)
Yang, Chan Su(양찬수)
Publication Year
2018-05-09
Abstract
The range velocity component is computed from the standard ATI algorithm. Estimation of the direction of the velocity vector is made by applying multi/sub-look processing to the azimuth components of the conventional ATI SAR raw data. This procedure yields a forward- and backward-looking interferograms, from which the corresponding velocity components are computed, and the direction can be estimated from these velocity components or directly from interferometric phases. The theory is tested with numerical simulation, resulting in good agreement. The principle of MA-ATI SAR is analogous to the multi aperture interferometry (MAI) for the measurements of two-dimensional surface deformation by cross-track interferometric SAR, and thus the proposed MA-ATI SAR is also considered as feasible.procedure yields a forward- and backward-looking interferograms, from which the corresponding velocity components are computed, and the direction can be estimated from these velocity components or directly from interferometric phases. The theory is tested with numerical simulation, resulting in good agreement. The principle of MA-ATI SAR is analogous to the multi aperture interferometry (MAI) for the measurements of two-dimensional surface deformation by cross-track interferometric SAR, and thus the proposed MA-ATI SAR is also considered as feasible.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23399
Bibliographic Citation
ISRS 2018, pp.1 - 4, 2018
Publisher
KSRS
Type
Conference
Language
English
Publisher
KSRS
Related Researcher
Research Interests

Satellite Oceanography,Marine Safety & Security,Remote Sensing,위성해양학,해양 안전 및 보안,원격탐사

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