TY - GEN
T1 - Adaptive hybrid beamforming based on a convex combination of complex stochastic gradient filters
AU - Orozco-Tupacyupanqui, W.
AU - Nakano-Miyatake, M.
AU - Pérez-Meana, H.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/3/9
Y1 - 2016/3/9
N2 - An adaptive hybrid beamforming (HB) based on the convex combination of two independent transversal adaptive filters is proposed and analyzed in this paper. It involves the use of the recursive least mean square (RLS) and the dual univariate filtering approach (DUAF). The main concept behind the hybrid beamforming stablishes that the adaptive structure is still able to generate a good radiation pattern, even though one of the filters fails. In order to prove this characteristic, two approaches have been analyzed in this paper: 1) both sub-filters have similar performance and 2) one of the filters has a bad steady-state error. In addition, general equations are derived for this beamforming in order to complete the analysis of the structure. Computer simulations have been performed to show the applicability and limitations that this structure has in its capacity of recovering the desired signal and generating the radiation pattern according to the desired direction-of-arrival (DOA) and nulls.
AB - An adaptive hybrid beamforming (HB) based on the convex combination of two independent transversal adaptive filters is proposed and analyzed in this paper. It involves the use of the recursive least mean square (RLS) and the dual univariate filtering approach (DUAF). The main concept behind the hybrid beamforming stablishes that the adaptive structure is still able to generate a good radiation pattern, even though one of the filters fails. In order to prove this characteristic, two approaches have been analyzed in this paper: 1) both sub-filters have similar performance and 2) one of the filters has a bad steady-state error. In addition, general equations are derived for this beamforming in order to complete the analysis of the structure. Computer simulations have been performed to show the applicability and limitations that this structure has in its capacity of recovering the desired signal and generating the radiation pattern according to the desired direction-of-arrival (DOA) and nulls.
KW - Adaptive hybrid beamforming
KW - complex adaptive algorithms
KW - convex combination
KW - dual univariate approach
KW - radiation pattern
UR - http://www.scopus.com/inward/record.url?scp=84964754192&partnerID=8YFLogxK
U2 - 10.1109/LATINCOM.2015.7430111
DO - 10.1109/LATINCOM.2015.7430111
M3 - Contribución a la conferencia
AN - SCOPUS:84964754192
T3 - 2015 7th IEEE Latin-American Conference on Communications, LATINCOM 2015
BT - 2015 7th IEEE Latin-American Conference on Communications, LATINCOM 2015
A2 - Fernandez Del Carpio, Gonzalo M.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE Latin-American Conference on Communications, LATINCOM 2015
Y2 - 4 November 2015 through 6 November 2015
ER -