Publisher : The Korean Institute of Electromagnetic Engineering and Science
DOI : 10.5515/JKIEES.2016.16.2.74
Title & Authors
Optimum Array Configuration to Improve Null Steering Time for Mobile CRPA Systems Byun, Gangil; Hyun, Jong-Chul; Seo, Seung Mo; Choo, Hosung;
This paper proposes an optimum array configuration to improve null steering time for mobile controlled reception pattern antenna (CRPA) systems. The proposed array consists of a single reference element at the center and nine auxiliary elements arranged in a circular array. The array radius and the vertical positions of the center element are optimized using a genetic algorithm in conjunction with a constrained least-mean-square algorithm. The results demonstrate that the proposed array is suitable for mobile CRPA systems without significant side nulls in satellite directions.
C. C. Ko, "A fast null steering algorithm for linearly constrained adaptive arrays," IEEE Transactions on Antennas and Propagation, vol. 39, no. 8, pp. 1098-1104, 1991.
S. T. Smith, "Optimum phase-only adaptive nulling," IEEE Transactions on Signal Processing, vol. 47, no. 7, pp. 1835-1843, 1999.
R. L. Haupt, "Phase-only adaptive nulling with a genetic algorithm," IEEE Transactions on Antennas and Propagation, vol. 45, no. 6, pp. 1009-1015, 1997.
R. Fante and J. J. Vaccaro, "Wideband cancellation of interference in a GPS receive array," IEEE Transactions on Aerospace and Electronic Systems, vol. 36, no. 2, pp. 549-564, 2000.
Y. Zhang and M. G. Amin, "Array processing for nonstationary interference suppression in DS/SS communications using subspace projection techniques," IEEE Transactions on Signal Processing, vol. 49, no. 12, pp. 3005-3014, 2001.
M. G. Amin, L. Zhao, and A. R. Lindsey, "Subspace array processing for the suppression of FM jamming in GPS receivers," IEEE Transactions on Aerospace and Electronic Systems, vol. 40, no. 1, pp. 80-92, 2004.
O. L. Frost III, "An algorithm for linearly constrained adaptive array processing," Proceedings of the IEEE, vol. 60, no. 8, pp. 926-935, 1972.
K. Borre, D. M. Akos, N. Bertelsen, P. Rinder, and S. H. Jensen, A Software-Defined GPS and Galileo Receiver. Boston, MA: Bitkhauser, 2007.
G. Byun, H. Choo, and H. Ling, "Optimum placement of DF antenna elements for accurate DOA estimation in a harsh platform environment," IEEE Transactions on Antennas and Propagation, vol. 61, no. 9, pp. 4783-4791, 2013.
Y. Rahmat-Samii and E. Michielssen, Electromagnetic Optimization by Genetic Algorithms. New York, NY: Wiley, 1999.
EM Software and Systems, "FEKO Suite 7.0," 2015; http://www.feko.info/about-us/News/release-of-feko-suite-7.0-feature-overview.