COMPARISON BETWEEN GROUND-RANGE VELOCITY COMPONENT OF OCEAN CURRENT BY ALONG-TRACK SAR INTERFEROMETRY AND CURRENT VELOCITY MODEL

Title
COMPARISON BETWEEN GROUND-RANGE VELOCITY COMPONENT OF OCEAN CURRENT BY ALONG-TRACK SAR INTERFEROMETRY AND CURRENT VELOCITY MODEL
Author(s)
류은경; 김태호; 양찬수; kazuo ouchi
KIOST Author(s)
Yang, Chan Su(양찬수)
Alternative Author(s)
류은경; 김태호; 양찬수
Publication Year
2018-05-11
Abstract
Along-track Interferometry (ATI) Synthetic Aperture Radar (SAR) has been used to detect moving targets such as ships and vehicles as well as to calculate velocity vector of ocean currents and waves. The TerraSAR-X Dual Receive Antenna (DRA) mode is a mode for receiving signals respectively by separating one antenna receiver into two. With DRA mode, it is possible to generate the phase interferogram and to calculate the range velocity component, which is perpendicular to the direction of the satellite, using these interferometric phases. In the present paper, the ground-range velocity components of ocean currents in Hangzhou are calculated through ATI of TerraSAR-X DRA mode SAR images, which has 26.3m spatial resolution and compared with current velocity model data, which has 3km spatial resolution. As a result, the current velocity from MOHID model showed a stronger tendency than the velocity calculated by ATI with 0.37m/s RMSE. Based on these results, it is expected that it is possible to calculate the surface current velocity with high resolution and accuracy by interpolating the MOHID model with high accuracy and the SAR ATI with high resolution. mode is a mode for receiving signals respectively by separating one antenna receiver into two. With DRA mode, it is possible to generate the phase interferogram and to calculate the range velocity component, which is perpendicular to the direction of the satellite, using these interferometric phases. In the present paper, the ground-range velocity components of ocean currents in Hangzhou are calculated through ATI of TerraSAR-X DRA mode SAR images, which has 26.3m spatial resolution and compared with current velocity model data, which has 3km spatial resolution. As a result, the current velocity from MOHID model showed a stronger tendency than the velocity calculated by ATI with 0.37m/s RMSE. Based on these results, it is expected that it is possible to calculate the surface current velocity with high resolution and accuracy by interpolating the MOHID model with high accuracy and the SAR ATI with high resolution.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23373
Bibliographic Citation
International Symposium on Remote Sensing 2018 (ISRS 2018), pp.1 - 4, 2018
Publisher
대한원격탐사학회
Type
Conference
Language
English
Publisher
대한원격탐사학회
Related Researcher
Research Interests

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

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse