AN ANALYSIS OF ERROR IN SURFACE CURRENT MAPPING BY AN ALONG-TRACK INTERFEROMETRIC FMCW SAR

被引：1
|
作者：
Deng, Huazeng [1 ]
Farquharson, Gordon [1 ]
Thomson, Jim [1 ]
Moghimi, Saeed [2 ]
Ozkan-Haller, Tuba [2 ]
机构：
[1] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA
[2] Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
来源：
2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2016年
关键词：
Inteferometric SAR; error analysis; surface currents; DUAL-BEAM INTERFEROMETRY; RADAR;
D O I：
10.1109/IGARSS.2016.7729832
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Differences between surface velocity estimates from dual-beam along-track interferometric (ATI) synthetic aperture radar (SAR) and drift rate measurements by surface current drifters are presented for a tidally-driven river mouth. Using hydrodynamic and scattering models, we analyze the contributions from various sources in order to explain the observed differences. We find that the differences are largely explained by bias in the mean Doppler shift due to gravity waves. This work has relevance to improving the accuracy of implementing dual-beam ATI SAR for surface current measurements.
引用
收藏
页码：3215 / 3218
页数：4
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