eprintid: 355 rev_number: 5 eprint_status: archive userid: 5 dir: disk0/00/00/03/55 datestamp: 2011-07-05 lastmod: 2013-06-28 12:06:52 status_changed: 2013-06-28 12:06:52 type: techreport metadata_visibility: show item_issues_count: 0 creators_name: Caramanica, Federico creators_name: Seghi, M. creators_name: Oliveri, Giacomo creators_name: Massa, Andrea title: ADS-Based Hybrid Methods for Array Thinning ispublished: pub subjects: TU full_text_status: public keywords: Thinned Arrays, Almost Difference Sets, Sidelobe Control, Genetic Algorithm abstract: This paper presents different Almost Difference Set (ADS)?based hybrid methodologies to design linear thinned arrays. The proposed methods, which are based on genetic algorithms, allow one to overcome the limitations of ADS?based thinned arrays in terms of design flexibility and/or performances. The numerical validation points out the efficiency of the proposed methodologies with respect to standard ADS designs as ll as standard stochastic techniques. date: 2011-01 date_type: published institution: University of Trento department: informaticat refereed: FALSE referencetext: 1 C. A. Balanis, Antenna Theory: Analysis and Design JohnWiley and Sons, New Jersey, 1997. 2 S. Holm, B. Elgetun, and G. Dahl, “Properties of the beampattern of weight- and layout optimized sparse arrays,” IEEE Trans. Ultrason., Ferroelectr., Freq. Control, vol. 44, no. 5, pp. 983-991, 1997. 3 R. L. Haupt, “Thinned arrays using genetic algorithms,” IEEE Trans. Antennas Propag., vol. 42, no. 7, pp. 993-999, 1994. 4 R. L. Haupt and D. H. Werner D. H., “Genetic algorithms in electromagnetics”, JohnWiley and Sons, New Jersey, 2007 5 A. Trucco and V. Murino, “Stochastic optimization of linear sparse arrays,” IEEE J. Ocean Eng., vol. 24, no. 3, pp. 291-299, 2004. 6 S. Caorsi, A. Lommi, A. Massa, and M. Pastorino, “Peak sidelobe reduction with a hybrid approach based on GAs and difference sets,” IEEE Trans. Antennas Propag., vol. 52, no. 4, pp. 1116-1121, 2004 7 D. G. Leeper, “Isophoric arrays - massively thinned phased arrays with well?controlled sidelobes,” IEEE Trans. Antennas Propag., vol. 47, no. 12, pp. 1825?1835, 1999. 8 G. Oliveri, M. Donelli, and A. Massa, “Linear array thinning exploiting almost difference sets," IEEE Trans. Antennas Propag. (in press) 9 ELEDIA Almost Difference Set Repository (http://www.eledia.ing.unitn.it/) 10 C. Ding, T. Helleseth, and K. Y. Lam, “Several classes of binary sequences with three?level autocorrelation,” IEEE Trans. Inf. Theory, vol. 45, no. 7, pp. 2606?2612, 1999. 11 K. T. Arasu, C. Ding, T. Helleseth, P. V. Kumar, and H. M. Martinsen, “Almost difference sets and their sequences with optimal autocorrelation,” IEEE Trans. Inf. Theory, vol. 47, no. 7, pp. 2934?2943, 2001. citation: Caramanica, Federico and Seghi, M. and Oliveri, Giacomo and Massa, Andrea (2011) ADS-Based Hybrid Methods for Array Thinning. [Technical Report] document_url: http://www.eledia.org/students-reports/355/1/DISI-11-171.C196.pdf