High-Resolution Topography of Titan Adapting the Delay/Doppler Algorithm to the Cassini RADAR Altimeter Data
- Resource Type
- Periodical
- Authors
- Poggiali, V.; Mastrogiuseppe, M.; Hayes, A.G.; Seu, R.; Mullen, J.P.; Birch, S.P.D.; Raguso, M.C.
- Source
- IEEE Transactions on Geoscience and Remote Sensing IEEE Trans. Geosci. Remote Sensing Geoscience and Remote Sensing, IEEE Transactions on. 57(9):7262-7268 Sep, 2019
- Subject
- Geoscience
Signal Processing and Analysis
Doppler effect
Saturn
Spaceborne radar
Satellites
Radar tracking
Space vehicles
Cassini
delay/Doppler algorithm (DDA)
planetary science
radar
radar altimetry
radar signal processing
spaceborne radar
Titan
- Language
- ISSN
- 0196-2892
1558-0644
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.