Pattern Propagation Factor of the Earth
https://doi.org/10.32603/1993-8985-2018-21-1-43-49
Abstract
The article is devoted to the pattern propagation factor of the Earth enabling for more precise determination of the radar station visibility range in case there are reflections from underlying surface. The article provides analytical solution in general form taking into account the Earth sphericity. It enables to obtain the results in the wide-band and altitude range of the observed objects by means of computer simulation. The article gives analytical expression for the Earth multiplier under the flat approximation assumption, free of restrictions common for research literature. Besides, the article defines boundaries in which it is permissible to view the Earth as a flat surface. In addition, the article provides examples to illustrate graphical estimate of the error of all approximations both with respect to the general case of the Earth sphericity and relative to each other.
About the Authors
L. S. Mettus
Saint Petersburg Electrotechnical University “LETI” .
Russian Federation
Leonid S. Mettus – Ph.D. in engineering (1980), engineer for "Prognosis" Research Institute of Saint Petersburg Electrotechnical University "LETI".The author of more than 30 scientific publications.Area of expertise: development of radar systems with increased noise immunity, multi-range multi-position radar systems. 5, Professor Popov Str., 197376, St. Petersburg.
Russian Federation
Leonid S. Mettus – Ph.D. in engineering (1980), engineer for "Prognosis" Research Institute of Saint Petersburg Electrotechnical University "LETI".The author of more than 30 scientific publications.Area of expertise: development of radar systems with increased noise immunity, multi-range multi-position radar systems. 5, Professor Popov Str., 197376, St. Petersburg.
V. N. Mikhailov
Saint Petersburg Electrotechnical University “LETI” .
Russian Federation
Russian Federation
Vjacheslav N. Mikhaylov – Dipl.-engineer on radio engineering (2000, Saint Petersburg Electrotechnical University "LETI"), assistant of Radio Engineering Systems Department of named university, the scientist of "Prognosis" Research Inctitute.
The author of more than 30 scientific publications.
Area of expertise: radar detection and location, heuristic algorithms and digital signal processing.
5, Professor Popov Str., 197376, St. Petersburg.
A. B. Khachaturian
Saint Petersburg Electrotechnical University “LETI” .
Russian Federation
Alena B. Khachaturian – Ph.D. in engineering (2014), assistant professor of Department of Radio Engineering Systems of Saint Petersburg Electrotechnical University "LETI".The author of 20 scientific publications. Area of expertise: statistical communication theory; broadband radar, navigation and data systems; signal theory. 5, Professor Popov Str., 197376, St. Petersburg.
Russian Federation
Alena B. Khachaturian – Ph.D. in engineering (2014), assistant professor of Department of Radio Engineering Systems of Saint Petersburg Electrotechnical University "LETI".The author of 20 scientific publications. Area of expertise: statistical communication theory; broadband radar, navigation and data systems; signal theory. 5, Professor Popov Str., 197376, St. Petersburg.
References
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Review
For citations:
Mettus L.S., Mikhailov V.N., Khachaturian A.B. Pattern Propagation Factor of the Earth. Journal of the Russian Universities. Radioelectronics. 2018;(1):43-49. (In Russ.) https://doi.org/10.32603/1993-8985-2018-21-1-43-49
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