Two way split step parabolic equation algorithm for tropospheric propagation Tests and comparisons

Date

2010-08-25

Author

ÖZGÜN, ÖZLEM
APAYDIN, GÖKHAN
Kuzuoğlu, Mustafa
SEVGİ, LEVENT

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

179
views

0
downloads

This paper introduces a two-way split-step parabolic equation propagation tool (2W-SSPE), which is capable of handling both forward and backward scattered waves during groundwave propagation over an irregular terrain, through inhomogeneous atmosphere. The algorithm is calibrated and tested against reference data obtained with the help of image method and the Geometric Optic (GO) + Uniform Theory of Diffraction (UTD).

Subject Keywords

groundwave propagation, atmospheric refractivity, split-step parabolic equation, terrain factors, calibration

URI

https://hdl.handle.net/11511/69534

DOI

https://doi.org/10.1109/mmw.2010.5605125

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Recursive Two-Way Parabolic Equation Approach for Modeling Terrain Effects in Tropospheric Propagation Ozgun, Ozlem (2009-09-01) The Fourier split-step method is a one-way marching-type algorithm to efficiently solve the parabolic equation for modeling electromagnetic propagation in troposphere. The main drawback of this method is that it characterizes only forward-propagating waves, and neglects backward-propagating waves, which become important especially in the presence of irregular surfaces. Although ground reflecting boundaries are inherently incorporated into the split-step algorithm, irregular surfaces (such as sharp edges) in...
PETOOL: MATLAB-based one-way and two-way split-step parabolic equation tool for radiowave propagation over variable terrain Ozgun, Ozlem; Apaydin, Gökhan; Kuzuoğlu, Mustafa; Sevgi, Levent (Elsevier BV, 2011-12) A MATLAB-based one-way and two-way split-step parabolic equation software tool (PETOOL) has been developed with a user-friendly graphical user interface (GUI) for the analysis and visualization of radio-wave propagation over variable terrain and through homogeneous and inhomogeneous atmosphere. The tool has a unique feature over existing one-way parabolic equation (PE)-based codes, because it utilizes the two-way split-step parabolic equation (SSPE) approach with wide-angle propagator, which is a recursive ...
Two-way Fourier Split Step Algorithm over Variable Terrain with Narrow and Wide Angle Propagators Ozgun, Ozlem; Apaydin, Gökhan; Kuzuoğlu, Mustafa; Sevgi, Levent (2010-07-17) Helmholtz's wave equation can be approximated by means of two differential equations, corresponding to forward and backward propagating waves each of which is in parabolic wave equation (PWE) form. The standard PWE is very suitable for marching-type numerical solutions. The one-way Fourier split-step parabolic equation algorithm (SSPE) is highly effective in modeling electromagnetic (EM) wave propagation above the Earth's irregular surface through inhomogeneous atmosphere. The two drawbacks of the standard ...
An application of k-e model to oscillatory boundary layers Aydın, İsmail (1988-03-01) The k-ε model of turbulence is applied to one-dimensional oscillatory turbulent boundary layer flow. Computations are performed over fine meshes extending from the bottom to the outside of the boundary layer. Effects of low Reynolds number are included in the equations of turbulent kinetic energy and turbulent energy dissipation rate. An additional production of turbulent kinetic energy due to the surface roughness is simulated by introduction of a ‘roughness viscosity’ in the production term of turbulent k...
Flexible multibody analysis using absolute nodal coordinate formulation Çiftçi, Muhammed Ali; Darendeliler, Haluk; İder, S. Kemal; Department of Mechanical Engineering (2014) The motion of the planar flexible multibody system with large deformation is analyzed by using the absolute nodal coordinate formulation (ANCF). For this purpose, flexible multibody systems consisting of beams are considered. In the conventional planar ANCF beam elements, there are two nodes located at the ends. Each element has eight degrees of freedom which consist of four global coordinates and four global slopes. In this study, a planar beam element is developed with quadratic shape functions and new no...

Citation Formats

Ö. ÖZGÜN, G. APAYDIN, M. Kuzuoğlu, and L. SEVGİ, “Two way split step parabolic equation algorithm for tropospheric propagation Tests and comparisons,” 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/69534.