Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse

Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse

The measured spectral characteristics of HF signals at long-range propagation paths are analyzed for the day of the solar eclipse of August 1, 2008 and for the two adjacent days. The signals were radiated by special transmitters near Irkutsk, Norilsk and Magadan. The receiving sites were equipped ne...

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Бібліографічні деталі
Дата:2012
Автори: Kascheev, S. B., Zalizovski, A. V., Koloskov, A. V., Galushko, V. G., Pikulik, I. I., Yampolski, Yu. M., Kurkin, V. I., Litovkin, G. I., Orlov, A. I.
Формат: Стаття
Мова:rus
Опубліковано: Видавничий дім «Академперіодика» 2012
Онлайн доступ:http://rpra-journal.org.ua/index.php/ra/article/view/500
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Назва журналу:Radio physics and radio astronomy

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Radio physics and radio astronomy
id oai:ri.kharkov.ua:article-500
record_format ojs
spelling oai:ri.kharkov.ua:article-5002012-11-16T14:06:15Z Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse Вариации частоты КВ сигналов на протяженных трассах во время солнечного затмения Kascheev, S. B. Zalizovski, A. V. Koloskov, A. V. Galushko, V. G. Pikulik, I. I. Yampolski, Yu. M. Kurkin, V. I. Litovkin, G. I. Orlov, A. I. The measured spectral characteristics of HF signals at long-range propagation paths are analyzed for the day of the solar eclipse of August 1, 2008 and for the two adjacent days. The signals were radiated by special transmitters near Irkutsk, Norilsk and Magadan. The receiving sites were equipped near Kharkiv (Ukraine) and on the Svalbard Island (Spitsbergen Archipelago, Norway). The Doppler frequency shift variations during the solar eclipse have been found to show a similar behavior at different radio paths, with the characteristic amplitude being inversely proportional to the carrier frequency. A phenomenological model is suggested for the Doppler frequency shift variations in dependence on time varying integral illumination of the propagation paths. The model results are in good qualitative agreement with the measurements. Проанализированы результаты измерений спектральных характеристик сигналов КВ диапазона на протяженных радиолиниях во время солнечного затмения 1 августа 2008 г. и в соседние дни. В качестве источников излучения использованы специальные передатчики, расположенные вблизи Иркутска, Норильска и Магадана. Приемные пункты были организованы под Харьковом и на острове Свалбард (архипелаг Шпицберген, Норвегия). Обнаружено, что доплеровский сдвиг сигнала во время затмения обладает одинаковыми характерными особенностями на различных трассах, а его амплитуда приближенно обратно пропорциональна рабочей частоте. Разработана феноменологическая модель временной зависимости доплеровского сдвига сигнала от изменения интегральной освещенности всей радиолинии. Результаты моделирования качественно хорошо совпадают с результатами эксперимента. Видавничий дім «Академперіодика» 2012-11-16 Article Article application/pdf http://rpra-journal.org.ua/index.php/ra/article/view/500 РАДИОФИЗИКА И РАДИОАСТРОНОМИЯ; Vol 14, No 4 (2009); 353 RADIO PHYSICS AND RADIO ASTRONOMY; Vol 14, No 4 (2009); 353 РАДІОФІЗИКА І РАДІОАСТРОНОМІЯ; Vol 14, No 4 (2009); 353 2415-7007 1027-9636 rus http://rpra-journal.org.ua/index.php/ra/article/view/500/65
institution Radio physics and radio astronomy
collection OJS
language rus
format Article
author Kascheev, S. B.
Zalizovski, A. V.
Koloskov, A. V.
Galushko, V. G.
Pikulik, I. I.
Yampolski, Yu. M.
Kurkin, V. I.
Litovkin, G. I.
Orlov, A. I.
spellingShingle Kascheev, S. B.
Zalizovski, A. V.
Koloskov, A. V.
Galushko, V. G.
Pikulik, I. I.
Yampolski, Yu. M.
Kurkin, V. I.
Litovkin, G. I.
Orlov, A. I.
Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse
author_facet Kascheev, S. B.
Zalizovski, A. V.
Koloskov, A. V.
Galushko, V. G.
Pikulik, I. I.
Yampolski, Yu. M.
Kurkin, V. I.
Litovkin, G. I.
Orlov, A. I.
author_sort Kascheev, S. B.
title Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse
title_short Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse
title_full Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse
title_fullStr Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse
title_full_unstemmed Frequency Variations of HF Signals at Long-Range Radio Paths during a Solar Eclipse
title_sort frequency variations of hf signals at long-range radio paths during a solar eclipse
title_alt Вариации частоты КВ сигналов на протяженных трассах во время солнечного затмения
description The measured spectral characteristics of HF signals at long-range propagation paths are analyzed for the day of the solar eclipse of August 1, 2008 and for the two adjacent days. The signals were radiated by special transmitters near Irkutsk, Norilsk and Magadan. The receiving sites were equipped near Kharkiv (Ukraine) and on the Svalbard Island (Spitsbergen Archipelago, Norway). The Doppler frequency shift variations during the solar eclipse have been found to show a similar behavior at different radio paths, with the characteristic amplitude being inversely proportional to the carrier frequency. A phenomenological model is suggested for the Doppler frequency shift variations in dependence on time varying integral illumination of the propagation paths. The model results are in good qualitative agreement with the measurements.
publisher Видавничий дім «Академперіодика»
publishDate 2012
url http://rpra-journal.org.ua/index.php/ra/article/view/500
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first_indexed 2024-05-26T06:33:21Z
last_indexed 2024-05-26T06:33:21Z
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