Electronics and Control

Improved Multi-objective Particle Swarm Optimization Algorithm for Synthesizing Conformal Arrays with Excitations Restricted

  • ZHAO Fei ,
  • CHAI Shunlian ,
  • YE Liangfeng ,
  • QI Huiying ,
  • MAO Junjie
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  • 1. Southwest Electronics and Telecommunication Technology Research Institute, Chengdu 610041, China;
    2. College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

Received date: 2012-10-11

  Revised date: 2013-01-21

  Online published: 2013-03-27

Abstract

For the purpose of power pattern synthesis for conformal arrays with excitations restricted, an improved multi-objective particle swarm optimization (IMOPSO) algorithm is proposed. By applying this IMOPSO algorithm, the original problem can be transformed into a multi-objective optimization problem in which excitation optimization and power pattern synthesis are considered at the same time. By introducing multi-subgroup optimization, particle focused distance selection, Pareto solution set cutting, and a new particle copy mechanism, the performance of the IMOPSO algorithm is improved significantly as compared with the traditional multi-objective particle swarm optimization (MOPSO) algorithm. Moreover, IMOPSO algorithm is applied to synthesizing multiple-pattern in 12-element microstrip cyclinder sector conformal array in non-equatorial plane successfully, and a set of power patterns with different excitation restrictions for microstrip conformal arrays is achieved by IMOPSO algorithm, with the mutual coupling and polarizing deterioration of the elements considered. This offers a valuable reference for designing feed strategies of conformal phased array conformal phased array.

Cite this article

ZHAO Fei , CHAI Shunlian , YE Liangfeng , QI Huiying , MAO Junjie . Improved Multi-objective Particle Swarm Optimization Algorithm for Synthesizing Conformal Arrays with Excitations Restricted[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013 , 34(8) : 1944 -1952 . DOI: 10.7527/S1000-6893.2013.0117

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