Title :
Spatial filtering algorithms in adaptive multi-beam hybrid reflector antennas
Author :
Tyapkin, Valery N. ; Kartsan, Igor N. ; Dmitriev, Dmitry D. ; Goncharov, Alexander E.
Author_Institution :
Siberian Fed. Univ., Krasnoyarsk, Russia
Abstract :
Hybrid-reflector multibeam antennas employed in satellite navigation systems transform adopted accelerated spatial filtering algorithms. In order to accelerate the algorithm, the adaptive system selects an amplitude-phase distribution from a set of precalculated distributions for various interference signaling environments in the beam where the interference signal affects the radiation pattern of the main lobe. Specification of the weighted coefficients is performed after the most appropriate amplitude-phase distribution has been selected. Data from the weighted coefficients calculations is used for null formation in radiation patterns of beams where interference affects the side lobes.
Keywords :
adaptive antenna arrays; antenna radiation patterns; multibeam antennas; reflectarray antennas; satellite antennas; satellite navigation; spatial filters; telecommunication signalling; adaptive multibeam hybrid reflector multibeam antenna; amplitude phase distribution; beam radiation patterns; interference signaling environments; main lobe radiation pattern; satellite communication system; satellite navigation system; spatial filtering algorithm; weighted coefficients; Adaptive arrays; Adaptive systems; Antenna radiation patterns; Interference; Phased arrays; Reflector antennas; Resource management; adaptive algorithms; antenna radiation pattern; contour service area; hybrid reflector antenna; spatial filtering;
Conference_Titel :
Control and Communications (SIBCON), 2015 International Siberian Conference on
Conference_Location :
Omsk
Print_ISBN :
978-1-4799-7102-2
DOI :
10.1109/SIBCON.2015.7147244