PETOOL v2.0: Parabolic Equation Toolbox with evaporation duct models and real environment data

This paper is using weather parameters to investigate the effect of refractivity on propagation in the first kilometer of the atmosphere over the English Channel for a long transhorizon path of 140 km. Different refractivity profiles are constructed based on meteorological data taken from the UK Meteorological Office in order to investigate the effects of refractivity on propagation. The analysis is made for the hourly experimental path loss between the transmitter and receiver obtained from the experimental setup comprised of two communication links. The frequency of operation of the first link is 2015 MHz and that of the second link is 240 MHz. Parabolic equation method is modelled to get an hourly modelled path loss corresponding to each hourly experimental path loss to be analyzed for the said communication links. The correlation between the modelled path loss and experimental path loss is computed for refractivity distribution recommended by the ITU and predicted profiles. It is inferred from the simulated and experimental results that little or no influence exists by the evaporation duct upon path loss at 2015 MHz specifically for a long path of 140 km over the sea.

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Numerical solution of the three-dimensional parabolic equation with non-standard boundary conditions

Applied Mathematics and Computation ◽

10.1016/s0096-3003(02)00083-8 ◽

2002 ◽

Author(s):

M Dehghan

Keyword(s):

Parabolic Equation ◽

Boundary Conditions ◽

Numerical Solution ◽

Three Dimensional

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Interference Mitigation Using a Dual-Polarized Antenna in a Real Environment

Proceedings of the 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016) ◽

10.33012/2016.14798 ◽

2016 ◽

Cited By ~ 1

Author(s):

Matteo Sgammini ◽

Stefano Caizzone ◽

Andreas Iliopoulos ◽

Achim Hornbostel ◽

Michael Meurer

Keyword(s):

Interference Mitigation ◽

Real Environment ◽

Dual Polarized ◽

Dual Polarized Antenna

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Hypothesis on the Solvability of Parabolic Equations with nonlocal Condition

Nonlinear Analysis Modelling and Control ◽

10.15388/na.2002.7.1.15204 ◽

2002 ◽

Vol 7 (1) ◽

pp. 93-104 ◽

Cited By ~ 10

Author(s):

Mifodijus Sapagovas

Keyword(s):

Parabolic Equation ◽

Parabolic Equations ◽

Existence And Uniqueness ◽

Nonlocal Condition ◽

Nonlocal Conditions ◽

Numerical Algorithms ◽

Uniqueness Of The Solution

Numerous and different nonlocal conditions for the solvability of parabolic equations were researched in many articles and reports. The article presented analyzes such conditions imposed, and observes that the existence and uniqueness of the solution of parabolic equation is related mainly to ”smallness” of functions, involved in nonlocal conditions. As a consequence the hypothesis has been made, stating the assumptions on functions in nonlocal conditions are related to numerical algorithms of solving parabolic equations, and not to the parabolic equation itself.

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