FDTD simulation of very large domains applied to radar propagation over the ocean

Brandon Dowd; Rodolfo Diaz

doi:10.1109/APUSNCURSINRSM.2017.8073247

FDTD simulation of very large domains applied to radar propagation over the ocean

Brandon Dowd, Rodolfo Diaz

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

A domain decomposition method for analyzing very large FDTD domains, tens of thousands of wavelengths long, is demonstrated by application to the problem of RADAR scattering in the maritime environment. Success depends on the elimination of artificial scattering from the "sky" boundary and this is ensured by an ultra-high performance absorbing termination that eliminates this reflection at angles of incidence from normal down to less than 0.2 degrees off grazing. The results are cross-validated at S-Band by comparison to Method of Moments over a 3.6 km flat conducting plane with an inhomogeneous atmosphere, and at X-Band by comparing to another parabolic equation method on propagation through an inhomogeneous atmosphere over a 4km long sea surface. Details of the method are given for the two-dimensional problem (2D). The same techniques used in 2D are being applied to three dimensions (3D).

Original language	English (US)
Title of host publication	2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2409-2410
Number of pages	2
Volume	2017-January
ISBN (Electronic)	9781538632840
DOIs	https://doi.org/10.1109/APUSNCURSINRSM.2017.8073247
State	Published - Oct 18 2017
Event	2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017 - San Diego, United States Duration: Jul 9 2017 → Jul 14 2017

Other

Other	2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017
Country/Territory	United States
City	San Diego
Period	7/9/17 → 7/14/17

Keywords

Domain decomposition
FDTD
GPU computing
RADAR scattering
Rough surface scattering

ASJC Scopus subject areas

Radiation
Computer Networks and Communications
Instrumentation

Access to Document

10.1109/APUSNCURSINRSM.2017.8073247

Cite this

FDTD simulation of very large domains applied to radar propagation over the ocean. / Dowd, Brandon; Diaz, Rodolfo.
2017 IEEE Antennas and Propagation Society International Symposium, Proceedings. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. p. 2409-2410.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Dowd, B & Diaz, R 2017, FDTD simulation of very large domains applied to radar propagation over the ocean. in 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings. vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 2409-2410, 2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017, San Diego, United States, 7/9/17. https://doi.org/10.1109/APUSNCURSINRSM.2017.8073247

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abstract = "A domain decomposition method for analyzing very large FDTD domains, tens of thousands of wavelengths long, is demonstrated by application to the problem of RADAR scattering in the maritime environment. Success depends on the elimination of artificial scattering from the {"}sky{"} boundary and this is ensured by an ultra-high performance absorbing termination that eliminates this reflection at angles of incidence from normal down to less than 0.2 degrees off grazing. The results are cross-validated at S-Band by comparison to Method of Moments over a 3.6 km flat conducting plane with an inhomogeneous atmosphere, and at X-Band by comparing to another parabolic equation method on propagation through an inhomogeneous atmosphere over a 4km long sea surface. Details of the method are given for the two-dimensional problem (2D). The same techniques used in 2D are being applied to three dimensions (3D).",

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AB - A domain decomposition method for analyzing very large FDTD domains, tens of thousands of wavelengths long, is demonstrated by application to the problem of RADAR scattering in the maritime environment. Success depends on the elimination of artificial scattering from the "sky" boundary and this is ensured by an ultra-high performance absorbing termination that eliminates this reflection at angles of incidence from normal down to less than 0.2 degrees off grazing. The results are cross-validated at S-Band by comparison to Method of Moments over a 3.6 km flat conducting plane with an inhomogeneous atmosphere, and at X-Band by comparing to another parabolic equation method on propagation through an inhomogeneous atmosphere over a 4km long sea surface. Details of the method are given for the two-dimensional problem (2D). The same techniques used in 2D are being applied to three dimensions (3D).

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FDTD simulation of very large domains applied to radar propagation over the ocean

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Keywords

ASJC Scopus subject areas

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