Wide-Angle Claerbout Scheme for Three-Dimensional Time Domain Parabolic Equation and its CN, ADI, AGE Solutions

Authors

  • Zi He 1 Science and Technology on Electromagnetic Scattering Laboratory Beijing Institute of Environmental Features (BIEF), China , Department of Communication Engineering Nanjing University of Science and Technology, Nanjing 210094, China
  • Hong-Cheng Yin Science and Technology on Electromagnetic Scattering Laboratory Beijing Institute of Environmental Features (BIEF), China
  • Ru-Shan Chen Department of Communication Engineering Nanjing University of Science and Technology, Nanjing 210094, China

Keywords:

Electromagnetic scattering, time domain parabolic equation, wide angle

Abstract

The wide-angle Claerbout scheme of three-dimensional time domain parabolic equation (Claerbout-TDPE) is derived in this paper, which can provide accurate results at angles within 25° of the paraxial direction. At first, the Crank-Nicolson (CN) type is introduced to discretize the Claerbout-TDPE. In this way, a three-dimensional EM scattering problem can be divided into a series of two-dimensional ones. Moreover, the alternating direction implicit (ADI) type is utilized to the Claerbout-TDPE. In this way, a three-dimensional EM scattering problem can be further reduced to a series of one-dimensional ones. Furthermore, the alternating group explicit (AGE) type is introduced to the Claerbout- TDPE for higher computational efficiency. Comparisons are made among the CN, ADI and AGE types in the numerical results.

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Published

2021-07-25

How to Cite

Zi He, Hong-Cheng Yin, & Ru-Shan Chen. (2021). Wide-Angle Claerbout Scheme for Three-Dimensional Time Domain Parabolic Equation and its CN, ADI, AGE Solutions. The Applied Computational Electromagnetics Society Journal (ACES), 33(03), 251–258. Retrieved from https://journals.riverpublishers.com/index.php/ACES/article/view/9201

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