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A hybrid (parabolic equation)-(gaussian beam) algorithm for wave propagation through large inhomogeneous regions

Publication ,  Journal Article
Rao, B; Carin, L
Published in: IEEE Transactions on Antennas and Propagation
December 1, 1998

The wide-angle split-step parabolic equation (PE) algorithm is used to model electromagnetic wave propagation over general inhomogeneous terrain up to a height h. The PE-computed fields at h are then projected onto a complete Gabor basis from which we effect Gaussian beam propagation at altitudes greater than h. The Gaussian beams can be propagated through general inhomogeneous media, devoid of failures at caustics and shadow boundaries (as befalls ray tracing). The accuracy of the Gaussian beam algorithm is demonstrated via two realistic examples: 1) low-frequency (HF) ionospheric propagation with application to over-the-horizon radar and 2) near-grazing high-frequency propagation for communication or surveillance applications. In the context of these examples, we discuss relevant numerical issues associated with the hybrid algorithm from which general advantages and disadvantages are addressed. © 1998 IEEE.

Duke Scholars

Published In

IEEE Transactions on Antennas and Propagation

DOI

ISSN

0018-926X

Publication Date

December 1, 1998

Volume

46

Issue

5

Start / End Page

700 / 709

Related Subject Headings

  • Networking & Telecommunications
  • 4009 Electronics, sensors and digital hardware
  • 4008 Electrical engineering
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
 

Citation

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Rao, B., & Carin, L. (1998). A hybrid (parabolic equation)-(gaussian beam) algorithm for wave propagation through large inhomogeneous regions. IEEE Transactions on Antennas and Propagation, 46(5), 700–709. https://doi.org/10.1109/8.668914
Rao, B., and L. Carin. “A hybrid (parabolic equation)-(gaussian beam) algorithm for wave propagation through large inhomogeneous regions.” IEEE Transactions on Antennas and Propagation 46, no. 5 (December 1, 1998): 700–709. https://doi.org/10.1109/8.668914.
Rao B, Carin L. A hybrid (parabolic equation)-(gaussian beam) algorithm for wave propagation through large inhomogeneous regions. IEEE Transactions on Antennas and Propagation. 1998 Dec 1;46(5):700–9.
Rao, B., and L. Carin. “A hybrid (parabolic equation)-(gaussian beam) algorithm for wave propagation through large inhomogeneous regions.” IEEE Transactions on Antennas and Propagation, vol. 46, no. 5, Dec. 1998, pp. 700–09. Scopus, doi:10.1109/8.668914.
Rao B, Carin L. A hybrid (parabolic equation)-(gaussian beam) algorithm for wave propagation through large inhomogeneous regions. IEEE Transactions on Antennas and Propagation. 1998 Dec 1;46(5):700–709.

Published In

IEEE Transactions on Antennas and Propagation

DOI

ISSN

0018-926X

Publication Date

December 1, 1998

Volume

46

Issue

5

Start / End Page

700 / 709

Related Subject Headings

  • Networking & Telecommunications
  • 4009 Electronics, sensors and digital hardware
  • 4008 Electrical engineering
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering