국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Geologic Studies of Planetary Surfaces Using Radar Polarimetric Imaging
저자	Carter, Lynn M.;; Campbell, Donald B.;; Campbell, Bruce A.
Keyword	IMAGE PROCESSING;; IMAGING RADAR;; MOON;; PLANETARY GEOLOGY;; PLANETARY SURFACES;; POLARIMETRY;; RADAR DATA;; RADAR IMAGERY;; REMOTE SENSING;; SURFACE PROPERTIES;; TERRAIN;; VENUS SURFACE
URL	http://hdl.handle.net/2060/20110007351
보고서번호	none
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Radar is a useful remote sensing tool for studying planetary geology because it is sensitive to the composition, structure, and roughness of the surface and can penetrate some materials to reveal buried terrain. The Arecibo Observatory radar system transmits a single sense of circular polarization, and both senses of circular polarization are received, which allows for the construction of the Stokes polarization vector. From the Stokes vector, daughter products such as the circular polarization ratio, the degree of linear polarization, and linear polarization angle are obtained. Recent polarimetric imaging using Arecibo has included Venus and the Moon. These observations can be compared to radar data for terrestrial surfaces to better understand surface physical properties and regional geologic evolution. For example, polarimetric radar studies of volcanic settings on Venus, the Moon and Earth display some similarities, but also illustrate a variety of different emplacement and erosion mechanisms. Polarimetric radar data provides important information about surface properties beyond what can be obtained from single-polarization radar. Future observations using polarimetric synthetic aperture radar will provide information on roughness, composition and stratigraphy that will support a broader interpretation of surface evolution.