Powerful solar radio bursts as a global and free tool for testing satellite broadband radio systems, including GPS-GLONASS-GALILEO

被引：20

作者：

Afraimovich, E. L. ^{[1
]}

Demyranov, V. V. ^{[1
]}

Ishin, A. B. ^{[1
]}

Smolkov, G. Ya. ^{[1
]}

机构：

[1] Russian Acad Sci, ISTP SB RAS, Siberian Branch, Inst Solar Terr Phys, Irkutsk 664033, Russia

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2008年 / 70卷 / 15期

关键词：

Solar flares; Solar radio emission; GPS; Space weather effects;

D O I：

10.1016/j.jastp.2008.09.008

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We investigated failures in the global positioning system (GPS) performance produced by solar radio bursts with unprecedented radio flux density during the X6.5 and X3.4 solar flares on 6 and 13 December 2006, respectively. The effect of these events on GPS was compared to that of the X17.2 solar flare of 28 October 2003. Significant experimental evidence was found that high-precision GPS positioning on the Earth's entire sunlit side was partially disrupted for more than 10-15min on 6 and 13 December 2006. The high level of phase slips and count omissions resulted from the wideband solar radio noise emission. Our results provide serious grounds for revising the role of space weather factors in the functioning of modern satellite systems and for considering these factors more carefully in practice. Similar failures in the operation of satellite navigation systems (GPS, GLONASS, and GALILEO) can be fatal for operating safety systems as a whole and lead to great financial losses. Another important conclusion of our investigation concerns the continuous calibrated monitoring of the level of the solar radio emission flux. This monitoring involved a large number of solar radio spectrographs and allowed us to estimate the solar radio noise level in the range of the GPS-GLONASS-GALILEO frequencies. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1985 / 1994

页数：10

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