Malfunction of satellite navigation systems GPS and GLONASS caused by powerful radio emission of the Sun during solar flares on December 6 and 13, 2006, and October 28, 2003

2009 ◽  
Vol 47 (2) ◽  
pp. 126-137 ◽  
Author(s):  
E. L. Afraimovich ◽  
V. V. Demyanov ◽  
N. S. Gavrilyuk ◽  
A. B. Ishin ◽  
G. Ya. Smolkov
Keyword(s):  
Radio Emission ◽  
Solar Flares ◽  
Satellite Navigation ◽  
Navigation Systems ◽  
The Sun ◽  
Powerful Radio ◽  
Powerful Radio Emission ◽  
Satellite Navigation Systems

Optimal Processing of Information from Inertial and Satellite Navigation Systems by Analysis after Flight

2001 ◽  
Vol 56 (3) ◽  
pp. 13
Author(s):  
E. G. Kharin ◽  
V. G. Maslennikov ◽  
N. B. Vavilova ◽  
I. A. Kopylov ◽  
A. Ch. Staroverov
Keyword(s):  
Satellite Navigation ◽  
Navigation Systems ◽  
Optimal Processing ◽  
Satellite Navigation Systems

REVIEW OF SATELLITE-FREE NAVIGATION SYSTEMS

2018 ◽  
pp. 20-24
Author(s):  
M. K. Savkin ◽  
A. R. Filatov
Keyword(s):  
Satellite Navigation ◽  
Navigation Systems ◽  
Military Operations ◽  
Advantages And Disadvantages ◽  
Working Principle ◽  
Satellite Signal ◽  
Satellite Navigation Systems ◽  
Insufficient Number

Nowadays majority of navigation methods, used in unmanned flying vehicles, are based on satellite navigation systems, such as GPS or GLONASS, or are amplified with them. But hardware, that uses such systems, can’t work in difficult conditions, for example causes by relief: with insufficient number of satellites or at low satellite signal. Satellite navigation systems are vulnerable for methods of radio defense: satellite signal can be deadened or replaced. That is why such systems usage is unacceptable while critical missions during military operations, emergency or reconnaissance. The article briefly describes components used for building alternative satellite-free navigation systems for flying vehicles. For each component its purpose and brief description of working principle are given, advantages and disadvantages are considered.

Assessment of the Potential of Satellite Navigation Systems for Europe Results of a Study for the European Commission

1994 ◽  
Vol 47 (3) ◽  
pp. 295-304
Author(s):  
Hubert Stich ◽  
Walter Blanchard ◽  
Wolfgang Lechner ◽  
Detlef Kayser ◽  
Henry Gaillard
Keyword(s):  
European Commission ◽  
Satellite Navigation ◽  
Navigation Systems ◽  
Satellite Navigation Systems

This paper and the following five papers were presented at the DSNS-94 Conference organized by the Institute from 18–22 April in London. The full proceedings, including some 78 papers, are available from the Director, price £40 (exc. P&p).

scholarly journals Radio imaging-spectroscopy observations of the Sun in decimetric and centimetric wavelengths

2012 ◽  
Vol 8 (S294) ◽  
pp. 489-494 ◽  
Author(s):  
Yihua Yan ◽  
Wei Wang ◽  
Fei Liu ◽  
Lihong Geng ◽  
Zhijun Chen ◽  
...  
Keyword(s):  
Radio Emission ◽  
Solar Flares ◽  
Inner Mongolia ◽  
Imaging Spectroscopy ◽  
Current Status ◽  
The Sun ◽  
Radio Imaging ◽  
Time Space ◽  
Decimetric Wave ◽  
Wave Range

AbstractTo address fundamental processes in the solar eruptive phenomena it is important to have imaging-spectroscopy over centimetric-decimetric wave range. The Chinese Spectral Radioheliograph (CSRH) in 0.4-15 GHz range with high time, space and frequency resolutions is being constructed to achieve this goal. The perspectives to open new observational windows on solar flares and CMEs will be achieved by mapping the radio emission from unstable electron populations during the basic processes of energy release. CSRH is located in a radio quiet region in Inner Mongolia of China. The array of CSRH-I in 0.4-2.0 GHz with 40 4.5m antennas has been established and starts test observations. The 60 2m antennas for array of CSRH-II in 2-15 GHz have been mounted and assembled. The progress and current status of CSRH are introduced.

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