Results 81 to 90 of about 7,523 (232)
Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.Abstract Subglacial processes are key to glacier dynamics but remain poorly constrained due to limited in situ observations. We use continuous seismic and Global Navigation Satellite System (GNSS) measurements to investigate summer basal conditions at Sermeq Kujalleq in Kangia (SKK; Jakobshavn Isbræ), Kalaallit Nunaat (Greenland).
Janneke van Ginkel +6 more
wiley +1 more source
, 2006 An adaptive beamforming assisted receiver is proposed for multiple antenna aided multiuser systems that employ bandwidth efficient quadrature amplitude modulation (QAM).
Du, H.Q, Hanzo, L., Chen, S.
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Algoritmos adaptativos para conformação de feixe e controle de potência aplicados a sistemas de comunicações móveis [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2015.Neste trabalho de pesquisa são desenvolvidos novos algoritmos adaptativos aplicados a sistemas de ...
Pitz, Ciro André
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Ultrasound nondestructive evaluation (NDE) imaging with transducer arrays and adaptive processing
, 2011 This paper addresses the challenging problem of ultrasonic non-destructive evaluation (NDE) imaging with adaptive transducer arrays. In NDE applications, most materials like concrete, stainless steel and carbon-reinforced composites used extensively in ...
Hayward, G. +3 more
core +1 more source
Adaptive Minimum Bit Error Rate Beamforming Assisted Receiver for QPSK Wireless Communication
, 2005 This paper considers interference limited communication systems where the desired user and interfering users are symbol-synchronized. A novel adaptive beamforming technique is proposed for quadrature phase shift keying (QPSK) receiver based directly on ...
N. N. Ahmad +7 more
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Beamforming analysis on a broadband antenna array for the Galileo system
, 2006 The objective of this work is to demonstrate, through simulation results, an optimized beamforming approach on an antenna array designed to operate at the Galileo frequency bands.
Heckler, Marcos Vinicio Thomas +7 more
core +1 more source
Complex-valued symmetric radial basis function network for beamforming
, 2009 The complex-valued radial basis function (RBF) network proposed by Chen et al. (1994) has found many applications for processing complex-valued signals, in particular, for communication channel equalization and signal detection.
Sheng Chen, Chen, Sheng
core +1 more source
Orthogonal re-spread for uplink WCDMA beamforming [PDF]
, 2000 This paper presents a new extraction method for the spatial correlation matrix of interference and noise only based on orthogonal re-spreading. The method uses one of the remaining orthogonal variable spreading factor (OVSF) code that is orthogonal to ...
Piechocki, RJ +3 more
core +1 more source
An adaptive protocol for distributed beamforming.
, 2011 We study distributed adaptive beamforming in networks of wireless nodes. In particular, we observe that for the synchronisation of carrier phases, distinct algorithmic configurations are optimal in various environmental settings and propose a protocol that utilises organic computing principles to find optimum parameters.
Stephan Sigg, Michael Beigl
openaire +3 more sources
Genetic Algorithm Assisted Error Probability Optimisation for Beamforming
, 2004 A novel Genetic Algorithm (GA) assisted direct error probability optimisation technique is proposed for adaptive beamforming, which reduces the achievable error probability by nearly two orders of magnitude at a signal-to-noise ratio of 10dB in the ...
Wolfgang, A. +3 more
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