Application of the Main Components Method for GNSS Interference Suppression
Abstract
In this paper three methods of interferences nulling for GNSS GPS or GLONASS are described. A digital antenna array for compensation of interferences is implied. Two methods are based on the eigenvector decomposition of the correlation matrix of received oscillations. An expansion of the correlation matrix on its eigensystem is applied. The eigenvector matrix must be divided on the noise and signal subspaces. Some main components of the eigenvector matrix are used to weight vector calculation. The structure of a space-time interferences compensator is shown. The comprehensive test and the comparative analysis of effectiveness of described methods with the classic gradient method of output fluctuation power minimize under restriction on radiation pattern are completed. A suppression coefficient ranges up to 60 dB.
About the Authors
A. V. Nemov
JSC "Russian Institute of Radionavigation and Time"
Russian Federation
Ph.D. in Engineering (1989), senior researcher
Russian Federation
Ph.D. in Engineering (1989), senior researcher
Le. M. Dang
Saint Petersburg State Electrotechnical University "LETI"
Russian Federation
Master of engineering and technology in "Telecommunications" (2006, Vietnam), engineer of Vietnam Academy of science and technology, postgraduate student of the Department of radio systems
Russian Federation
Master of engineering and technology in "Telecommunications" (2006, Vietnam), engineer of Vietnam Academy of science and technology, postgraduate student of the Department of radio systems
D. Yu. Tyuftyakov
JSC "Design Bureau NAVIS"
Russian Federation
Master of engineering and technology in "Telecommunications" (2008), leading engineer
Russian Federation
Master of engineering and technology in "Telecommunications" (2008), leading engineer
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Review
For citations:
Nemov A.V., Dang L.M., Tyuftyakov D.Yu. Application of the Main Components Method for GNSS Interference Suppression. Journal of the Russian Universities. Radioelectronics. 2017;(3):16-23. (In Russ.)
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