Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimir: 0040-2508
ISSN En Línea: 1943-6009

Volumes:
Volumen 78, 2019 Volumen 77, 2018 Volumen 76, 2017 Volumen 75, 2016 Volumen 74, 2015 Volumen 73, 2014 Volumen 72, 2013 Volumen 71, 2012 Volumen 70, 2011 Volumen 69, 2010 Volumen 68, 2009 Volumen 67, 2008 Volumen 66, 2007 Volumen 65, 2006 Volumen 64, 2005 Volumen 63, 2005 Volumen 62, 2004 Volumen 61, 2004 Volumen 60, 2003 Volumen 59, 2003 Volumen 58, 2002 Volumen 57, 2002 Volumen 56, 2001 Volumen 55, 2001 Volumen 54, 2000 Volumen 53, 1999 Volumen 52, 1998 Volumen 51, 1997

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v53.i2.110
pages 58-64

3-D Ray-Tracing Synthesis of Multiparameter Ionograms as Obtained by Digital Sounders in a Disturbed Ionosphere

V. F. Pushin
Kharkov National University, 4, Svobody Square, Kharkov 61077, Ukraine
L. S. Kostrov
V. Karazin National University of Kharkov, 4, Svoboda Sq., Kharkov, 61077, Ukraine

SINOPSIS

A ray-tracing technique is suggested for synthesizing multiparameter ionograms obtained with digital sounders under disturbed ionospheric conditions. The ionosphere is assumed to be a 3-D inhomogeneous quasi-stationary medium placed in an external magnetic field. The dual-point boundary-value problem for the ray equations is solved by the method of ballistics. The steepest descent method is applied within the approach to solve the set of nonlinear equations. To that end, the ray equations are complemented by equations for their partial derivatives with respect to parameters of the boundary-value problem. The radio wave parameters are given by curvilinear integrals of known functions, taken along the ray connecting two specified points. The extended set is solved numerically. Analytic solutions have been obtained for simplified dispersion relations in the vicinity of reflection points for the O- and X-modes. The numerical and analytic solutions are matched at the edge of the reflecting region. Data bank perturbation models are used for the ionogram synthesis. The regular background model of the ionosphere is corrected through Doppler shift measurements of the VHF signals from satellite radio beacons. The Dopplionograms characteristic of the perturbations like traveling ionospheric disturbances (TIDs) have been obtained. The results are compared with the measurements.


Articles with similar content:

Asymptotic Solution of a Problem of Electromagnetic Wave Scattering by Perfectly Conducting Cylindrical Object Embedded in a Dielectric Half-Space
Telecommunications and Radio Engineering, Vol.61, 2004, issue 7-12
Oleg ll'ich Sukharevsky, A. Z. Sazonov, A. V. Muzychenko
Applicability of the Isotropic Approximation in the Problem of Frequency-and-Angular Ionospheric Sounding
Telecommunications and Radio Engineering, Vol.61, 2004, issue 2-6
Vladimir G. Galushko, G. V. Lytvynenko
USING PHASE DYNAMIC CROSS-SPECTRA FOR WIDEBAND RADIO ASTRONOMY OBSERVATIONS: EXPERIENCE FROM THE UTR-2 RADIO TELESCOPE
Radio Physics and Radio Astronomy, Vol.3, 2012, issue 2
V. L. Koliadin
ACCURACY OF LINEAR WIND SPEED DETERMINATION BY MEANS OF A SINGLE-POSITIONED DOPPLER WEATHER ALL-ROUND-LOOKING RADAR
Telecommunications and Radio Engineering, Vol.69, 2010, issue 8
Nikolai Ivanovich Kravchenko
Impact of the Ionosphere Day-Night Non-Uniformity on Amplitude of ELF Radio Signal
Telecommunications and Radio Engineering, Vol.67, 2008, issue 5
A. P. Nickolaenko