NDLI: Simulating and mitigating ionospheric effects in synthetic aperture radar

Content Provider	IEEE Xplore Digital Library
Author	Roth, A.P. Huxtable, B.D. Chotoo, K. Chotoo, S.D.
Copyright Year	2010
Description	Author affiliation: User Systems, Inc., USA (Roth, A.P.; Huxtable, B.D.; Chotoo, K.; Chotoo, S.D.)
Abstract	The ionosphere is magnetized plasma that forms above the neutral atmosphere due to solar ionization of upper atmosphere constituents. It presents an obstacle to space based synthetic aperture radar (SAR) systems since it affects the radar signals traveling through it. Its impact can be split into two groups: uniform effects (those caused by a spatially uniform non-turbulent ionosphere) and nonuniform effects (those caused by irregularities in the ionosphere). In this paper, we present a method for simulating the uniform non-turbulent effects such as dispersion, group delay, Faraday rotation, and phase shift. This method is then validated using PALSAR data of Washington, DC. We also show the coherence in this scene after ionospheric effects are added. Finally, the model is used to predict the level of ionospheric effects in future space based SAR systems such as ALOS-2.
Starting Page	2892
Ending Page	2895
File Size	767888
Page Count	4
File Format	PDF
ISBN	9781424495658
ISSN	21537003
e-ISBN	9781424495665
e-ISBN	9781424495641
DOI	10.1109/IGARSS.2010.5653180
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ionosphere Bandwidth Mathematical model Faraday effect Coherence History Synthetic aperture radar PALSAR Ionospheric electromagnetic propagation
Content Type	Text
Resource Type	Article

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