Parabolic equation method for Loran-C ASF prediction over irregular terrain

Author

Dandan Wang ; Xiaoli Xi ; Yurong Pu ; Jiangfan Liu

Author_Institution

Fac. of Autom. & Inf. Eng., Xi´an Univ. of Technol., Jinhua, China

fYear

2015

fDate

22-26 March 2015

Firstpage

1

Lastpage

2

Abstract

The Parabolic Equation (PE) method is employed to solve the Loran-C additional secondary factors (ASFs) over irregular terrain. The method is based on split-step Fourier transform (SSFT) algorithm, and has been proven to be numerically efficient. The ASF results are compared to those of finite-difference time-domain (FDTD) method and integral equation (IE) method with very good agreement. The computational time of the PE method is several orders less than the other two. The memory requirement is similar to IE, and less than FDTD method.

Keywords

Fourier transforms; electromagnetic wave propagation; parabolic equations; FDTD method; IE method; Loran-C ASF prediction; Loran-C additional secondary factors; PE method; SSFT algorithm; finite-difference time-domain method; ground wave propagation; integral equation method; irregular terrain; parabolic equation method; split-step Fourier transform algorithm; Antennas; Computational modeling; Finite difference methods; Mathematical model; Prediction algorithms; Random access memory; Time-domain analysis; ASFs; FDTD; IE; PE; SSFT; irregular terrain;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Computational Electromagnetics (ACES), 2015 31st International Review of Progress in

Conference_Location

Williamsburg, VA

Type

conf

Filename

7109686