Computer Science – Sound
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002rasc...37f...3b&link_type=abstract
Radio Science, Volume 37, Issue 6, pp. 3-1, CiteID 1091, DOI 10.1029/2002RS002713
Computer Science
Sound
1
Electromagnetics: Wave Propagation (4275), Electromagnetics: Numerical Methods, Radio Science: Tomography And Imaging, Planetology: Comets And Small Bodies: Surfaces And Interiors
Scientific paper
To prepare the Comet Nucleus Sounding Experiment using Radio wave Transmission during the Rosetta mission, we study the electromagnetic wave propagation through a comet nucleus model and tomographic inversion in a two-dimensional setting. For the propagation, the Ray Tracing Method (RTM) is validated with respect to the Pseudo-Spectral Time Domain (PSTD) method. For the inverse problem, a Tikhonov-like inverse RTM method based on weak permittivity assumptions is used, with synthetic data derived from the PSTD algorithm. Reconstruction results show that the Consert data will permit a reliable tomography of the comet nucleus. Surface data will enhance the quality of the imaging.
Barriot Jean-Pierre
Benna Marcus
Kofman Wlodek
Piot Alexandre
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