High-Resolution Topography of Titan Adapting the Delay/Doppler Algorithm to the Cassini RADAR Altimeter Data

被引：9
|
作者：
Poggiali, Valerio [1 ]
Mastrogiuseppe, Marco [2 ]
Hayes, Alexander Gerard [1 ]
Seu, Roberto [3 ]
Mullen, Joseph Peter [1 ]
Birch, Samuel Patrick Dennis [1 ]
Raguso, Maria Carmela [2 ]
机构：
[1] Cornell Univ, Dept Astron, Ithaca, NY 14850 USA
[2] CALTECH, Geol & Planetary Sci Div, Pasadena, CA 91125 USA
[3] Univ Roma La Sapienza, Dipartimento Ingn Informaz Elettron & Telecomunic, Course Radar Syst Space Applicat & Syst Air Traff, I-00185 Rome, Italy
来源：
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2019年 / 57卷 / 09期
基金：
欧盟地平线“2020”;
关键词：
Cassini; delay/Doppler algorithm (DDA); planetary science; radar; radar altimetry; radar signal processing; spaceborne radar; Titan; BATHYMETRY; INVERSION;
D O I：
10.1109/TGRS.2019.2912575
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The Cassini RADAR altimeter has provided broad-scale surface topography data for Saturn's largest moon Titan. Herein, we adapt the delay/Doppler algorithm to take into account Cassini geometries and antenna mispointing usually occurring during hyperbolic Titan flybys. The proposed algorithm allows up to tenfold improvement in the along-track resolution. Preliminary results are provided that show how the improved topography presented herein can advance our understanding of Titan's surface characteristics.
引用
收藏
页码：7262 / 7268
页数：7
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