RETRACTED ARTICLE: Design of linear array for shaped beams using enhanced flower pollination optimization algorithm

A technique to perform the synthesis of sum patterns which can achieve beam shaping using individual heights of side lobes is presented. The side lobes can be adjusted to any arbitrary specification, and flat-top far-field radiation patterns are generated using enhanced flower pollination algorithm...

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Vydáno v:Soft computing (Berlin, Germany) Ročník 26; číslo 12; s. 5805 - 5813
Hlavní autoři: Vegesna, Nagavalli, Yamuna, G., Terlapu, Sudheer Kumar
Médium: Journal Article
Jazyk:angličtina
Vydáno: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2022
Springer Nature B.V
Témata:
Artificial Intelligence
Computational Intelligence
Control
Engineering
Mathematical Logic and Foundations
Mechatronics
Optimization
Robotics
Side lobe level
Enhanced flower pollination algorithm
Antenna radiation pattern
Linear array
ISSN:1432-7643, 1433-7479
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Shrnutí:A technique to perform the synthesis of sum patterns which can achieve beam shaping using individual heights of side lobes is presented. The side lobes can be adjusted to any arbitrary specification, and flat-top far-field radiation patterns are generated using enhanced flower pollination algorithm (EFPA) which is discussed in this paper. The problem of designing an array can be expressed as an optimization problem that aims to reduce the first two side lobes to − 50 dB and by reducing the remaining side lobes to − 40 dB in case 1. The EFPA is applied to determine the excitation coefficients of their amplitudes so as to obtain the required pattern. The objective for case 2 is to obtain the flat-top sector beam for specified angular regions. Complex excitation coefficients are determined using EFPA for various beam widths. The radiation patterns are generated numerically using the obtained excitation coefficients. The results reveal that not only the ripples are controlled in the trade-in region, but the side lobe levels are also maintained in the acceptable limits. The results presented are very much useful for marine radar applications.
Bibliografie:ObjectType-Correction/Retraction-1
SourceType-Scholarly Journals-1
content type line 14
ISSN:1432-7643
1433-7479
DOI:10.1007/s00500-022-07146-0