A Novel Wavelet-Galerkin Method for Modeling Radio Wave Propagation in Tropospheric Ducts

In this paper, a novel Wavelet-Galerkin Method (WGM) is presented to model the radio-wave propagation in tropospheric ducts. Galerkin method, with Daubechies scaling functions, is used to discretize the height operator. Later, a marching algorithm is developed using Crank-Nicolson (CN) method. A new \flctitious domain method" is also developed for parabolic wave equation to incorporate the impedance boundary conditions in WGM. In the end, results are compared with those from Advance Refractive Efiects Prediction System (AREPS). Results show that the wavelet based methods are indeed feasible to model the radio wave propagation in troposphere as accurately as AREPS and proposed method can be a good alternative to other conventional methods.

[2]  A. E. Barrios,et al.  Considerations in the development of the advanced propagation model (APM) for U.S. Navy applications , 2003, 2003 Proceedings of the International Conference on Radar (IEEE Cat. No.03EX695).

[3]  Sam Qian,et al.  Wavelets and the Numerical Solution of Partial Differential Equations , 1993 .

[4]  Jeffrey L. Krolik,et al.  Inversion for refractivity parameters from radar sea clutter , 2003 .

[5]  D. Dockery,et al.  An improved impedance-boundary algorithm for Fourier split-step solutions of the parabolic wave equation , 1996 .

[6]  A. Robinson I. Introduction , 1991 .

[7]  Jacques Liandrat,et al.  Resolution of the 1D regularized Burgers equation using a spatial wavelet approximation , 1990 .

[8]  Stergios A. Isaakidis,et al.  PARABOLIC EQUATION SOLUTION OF TROPOSPHERIC WAVE PROPAGATION USING FEM , 2004 .

[9]  H. Hitney Hybrid ray optics and parabolic equation methods for radar propagation modeling , 1992 .

[10]  L. Sevgi,et al.  The Split-Step-Fourier and Finite-Element-Based Parabolic-Equation Propagation-Prediction Tools: Canonical Tests, Systematic Comparisons, and Calibration , 2010, IEEE Antennas and Propagation Magazine.

[11]  C. L. Rino,et al.  A comparison of forward-boundary-integral and parabolic-wave-equation propagation models , 2001 .

[12]  Lars Eldén,et al.  Solving the sideways heat equation by a wavelet - Galerkin method , 1997 .

[13]  J. Restrepo,et al.  Inner product computations using periodized daubechies wavelets. , 1997 .

[14]  Homayoon Oraizi,et al.  A NOVEL MARCHING ALGORITHM FOR RADIO WAVE PROPAGATION MODELING OVER ROUGH SURFACES , 2006 .

[15]  An investigation of wave propagation over irregular terrain and urban streets using finite elements , 2007 .

[16]  Christophe Besse,et al.  A Review of Transparent and Artificial Boundary Conditions Techniques for Linear and Nonlinear Schrödinger Equations , 2008 .

[17]  G. Beylkin On the representation of operators in bases of compactly supported wavelets , 1992 .

[18]  Charles K. Chui,et al.  An Introduction to Wavelets , 1992 .

[19]  L. Sevgi,et al.  Numerical Investigations of and Path Loss Predictions for Surface Wave Propagation Over Sea Paths Including Hilly Island Transitions , 2010, IEEE Transactions on Antennas and Propagation.

[20]  I. Daubechies Orthonormal bases of compactly supported wavelets , 1988 .

[21]  M. Levy Parabolic Equation Methods for Electromagnetic Wave Propagation , 2000 .

[22]  Treatment of Boundary Conditions in the Application of Wavelet-Galerkin Method to an SH Wave Problem , 1997 .

[23]  L. Barclay Propagation of radiowaves , 2003 .

[24]  J. Richter,et al.  Tropospheric radio propagation assessment , 1985, Proceedings of the IEEE.

[25]  John R. Williams,et al.  Wavelet–Galerkin solutions for one‐dimensional partial differential equations , 1994 .

[26]  Study of electromagnetic wave propagation through dielectric slab doped randomly with thin metallic wires using finite element method , 2005, IEEE Microwave and Wireless Components Letters.