eprintid: 507 rev_number: 6 eprint_status: archive userid: 5 dir: disk0/00/00/05/07 datestamp: 2011-06-30 lastmod: 2013-06-30 08:51:52 status_changed: 2013-06-30 08:51:52 type: techreport metadata_visibility: show item_issues_count: 0 creators_name: Oliveri, Giacomo creators_name: Massa, Andrea title: GA-Enhanced ADS-Based Approach for Array Thinning ispublished: pub subjects: TU full_text_status: public keywords: Array Antennas, Linear Arrays, Thinned Arrays, Almost Difference Sets, Sidelobe Control abstract: This study proposes a genetic algorithm (GA)-enhanced almost difference set (ADS)-based methodology to design thinned linear arrays with low-peak sidelobe levels (PSLs). The method allows one to overcome the limitations of the standard ADS approach in terms of flexibility and performances. The numerical validation, carried out in the far-field and for narrow-band signals, points out that with affordable computational efforts it is possible to design array arrangements that outperform standard ADS-based designs as well as standard GA approaches. "This paper is a postprint of a paper submitted to and accepted for publication in IET Microwaves, Antennas & Propagation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5714040" date: 2011-01 date_type: published institution: University of Trento department: informaticat refereed: TRUE referencetext: [1] Balanis C. A., "Antenna Theory: Analysis and Design"; (John Wiley and Sons, New Jersey,1997) (Second edition) [2] Lo Y. T., "A mathematical theory of antenna arrays with randomly spaced elements,"; IEEETrans. Antennas Propag., 1964, 12, (3), pp. 257-268 [3] Steinberg B., "Comparison between the peak sidelobe of the random array and algorith-mically designed aperiodic arrays"; IEEE Trans. Antennas Propag., 1973, 21, (3), pp.366-370 [4] Holm S., Elgetun B., and Dahl G., "Properties of the beampattern of weight- and layout-optimized sparse arrays"; IEEE Trans. Ultrason., Ferroelectr., Freq. Control, 1997, 44,(5), pp. 983-991 [5] Haupt R. L., "Thinned arrays using genetic algorithms"; IEEE Trans. Antennas Propag.,1994, 42, (7), pp. 993-999 [6] Haupt R. L. and Werner D. H., "Genetic algorithms in electromagnetics"; (John Wiley andSons, New Jersey, 2007) [7] Trucco A. and Murino V., "Stochastic optimization of linear sparse arrays"; IEEE J. OceanEng., 1999, 24, (3), pp. 291-299 [8] Trucco A., "Weighting and thinning wide-band arrays by simulated annealing"; Ultrason-ics, 2002, 40, (1-8), pp. 485-489. citation: Oliveri, Giacomo and Massa, Andrea (2011) GA-Enhanced ADS-Based Approach for Array Thinning. [Technical Report] document_url: http://www.eledia.org/students-reports/507/1/DISI-11-106-R200.pdf