Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009

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

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v73.i5.30
pages 399-411

DISTINCTIVE FEATURES OF FORMING THE SPACE-TIME MILLIMETER RADIO-WAVE FIELD AT LOW ALTITUDES ABOVE THE SEA SURFACE

V. B. Razskazovsky
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine
Yu. F. Logvinov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine

Краткое описание

An impact of the sea surface condition upon the space-time structure of the e.m. field propagation over the above surface causes the range of shipboard radars to suffer certain limitations, thereby impairing an accuracy in measuring the angular coordinates of objects. On account of strong shadowings one can observe an interaction between the illuminating field and the sea waves only. In this context the computational procedures are currently in the initial stage of elaboration. They are aimed at calculating the effects produced during the operation over the millimeter and submillimeter range at angular heights of objects being observed. The parameters of elements interacting with the illuminating e.m. field have been evaluated by means of simulating the sea surface form. The basic physical reradiating mechanisms are determined and the selection of calculated dependences is substantiated. These dependences allowed estimating the path length distribution of coherent and noncoherent intensities of the reradiated field component and its angular spectra at a point of arrival. A special approach to representing the sea surface-reradiated field has been developed. It provides an adequate insight into the previously determined features of the signal amplitude fluctuation spectra of millimeter waves in the over-sea propagation. Thus, the procedure for computing the millimeter and centimeter-wave field over the sea surface has been theoretically grounded. It has likewise been tested via solutions of radiophysical problems at strong shadowings of certain sea surface areas.


Articles with similar content:

Spectral Techniques for Estimating Characteristics of Secondary Sources in Multipath Propagation Channels
Telecommunications and Radio Engineering, Vol.65, 2006, issue 16-20
I. V. Lutsenko, I. V. Popov, V. I. Lutsenko
A MODEL OF MULTIPATH PROPAGATION OF MILLIMETER RADIO WAVES OVER THE SEA SURFACE AT STRONG SHADOWINGS
Telecommunications and Radio Engineering, Vol.73, 2014, issue 4
Yu. F. Logvinov, V. B. Razskazovsky
Specific Statistical Characteristics of Three Millimeter Waves Propagating over Rough Sea
Telecommunications and Radio Engineering, Vol.63, 2005, issue 2-6
L. I. Sharapov, V. G. Gutnik, N. V. Gorbach
MAIN DIRECTIONS OF IMPROVEMENT OF ACOUSTIC RECONNAISSANCE EQUIPMENT
Telecommunications and Radio Engineering, Vol.77, 2018, issue 2
A. N. Oleynikov, A. V. Borodavka
ASPECT-SENSITIVE SCATTERING OF HF RADIO WAVES BY FIELD-ALIGNED IRREGULARITIES OF A PLANE-STRATIFIED IONOSPHERE
Radio Physics and Radio Astronomy, Vol.2, 2011, issue 3
B. W. Reinisch, Vladimir G. Galushko, V. G. Bezrodny