Summary
International Symposium on Antennas and Propagation
2012
Session Number:1C4
Session:
Number:1C4-4
Comparison of Parameters Derived from Dual-polarzation SAR Data and their Application
Mitsunobu Sugimoto, Kazuo Ouchi, Yasuhiro Nakamura,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
The goal of this study is to examine the potential of deriving information comparable to quad-polarization data from dual-polarization data acquired by synthetic aperture radar (SAR). SAR has been proven to be one of the most useful sensors in remote sensing because of its high resolution and all-weather day-and-night observation capabilities. In early days, most SAR systems operated on single-polarization. However, recent technological advancements allowed us to develop and operate SAR systems with multi-polarization observation capability. Multi-polarization data have shown the potential to increase further the ability of extracting physical quantities of observation targets. While quad-polarization data have several advantages, they are relatively few compared with single- or dual-polarization data because of the operational costs and system constraints required for quad-polarization SAR systems. For those reasons, although there are many platforms that can be operated on quad-polarization mode, they are more often to be operated on single- or dual-polarization mode instead. Since there is a certain trade-off between data availability and multi-polarization, we focused on dual-polarization data as a good compromise between single- and quad-polarization data. In this study, we investigated alternative parameter candidates for dual-polarization data. Dual entropy/alpha decomposition and coherence analysis are used in this study. They are one of the methods that can effectively utilize dual-polarization data. Experimental results showed that dual-polarization data can be as capable as quad-polarization data.