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A Pseudospectral Time-Domain Simulator for Large-Scale Half-Space Electromagnetic Scattering and Radar Sounding Applications

Lei, Yang and Haynes, Mark and Arumugam, Darmindra and Elachi, Charles (2020) A Pseudospectral Time-Domain Simulator for Large-Scale Half-Space Electromagnetic Scattering and Radar Sounding Applications. In: 2020 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2020). IEEE , Piscataway, NJ, pp. 1424-1427. ISBN 9781728163741. https://resolver.caltech.edu/CaltechAUTHORS:20210225-103303334

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Abstract

This paper describes a 2D Pseudospectral Time-Domain (PSTD) full-wave simulator for solving large-scale half-space electromagnetic scattering problems with the application of radar sounding of planetary subsurfaces. New domain designs are developed to efficiently simulate 2D scattering of half-space media for normal and oblique incidence from arbitrary wave sources. The simulated 2D bistatic scattering radar cross width (RCW) is compared with the analytical solutions of random rough surfaces with various choices of grid sampling resolution. The PSTD solver is applied to a passive sounding problem with SAR focusing. An example of using the solver is shown for emulating three-dimensional large-scale radar sounding problems with cross-track surface and subsurface scattering. The PSTD solver is both memory-efficient and accurate for sounding applications, and particularly useful to simulate large-scale radar sounding returns and SAR focused imagery.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/igarss39084.2020.9324731DOIArticle
ORCID:
AuthorORCID
Lei, Yang0000-0002-8377-1980
Haynes, Mark0000-0003-2119-2083
Arumugam, Darmindra0000-0001-9697-3859
Additional Information:© 2020 IEEE. The research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004).
Funders:
Funding AgencyGrant Number
NASA80NM0018D0004
NASA/JPL/CaltechUNSPECIFIED
Subject Keywords:Pseudospectral Time domain (PSTD), electromagnetic scattering, radar, sounding, Synthetic Aperture Radar (SAR), focusing
Record Number:CaltechAUTHORS:20210225-103303334
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210225-103303334
Official Citation:Y. Lei, M. Haynes, D. Arumugam and C. Elachi, "A Pseudospectral Time-Domain Simulator for Large-Scale Half-Space Electromagnetic Scattering and Radar Sounding Applications," IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, Waikoloa, HI, USA, 2020, pp. 1424-1427, doi: 10.1109/IGARSS39084.2020.9324731
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108195
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Feb 2021 19:14
Last Modified:25 Feb 2021 19:14

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