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

页码：7262 / 7268

页数：7

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