Minimizing sidelobe levels and facilitating null placements of nonlinear antenna arrays using an improved particle swarm optimization method

• Huijun Deng ^[2] ; Xue Li ^[1] ; Libao Sun ^[1] ; Shiyou Yang ^[1]
  1. [1] Zhejiang University

     Zhejiang University

     China

     
  2. [2] Shiyou Yang
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 33, Nº 1-2 (Special Issue: ICEF 2012), 2014, págs. 65-73
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • Purpose – The aim of this paper is to explore the potential of particle swarm optimization (PSO) methods for minimizing the sidelobe levels (SLL) and placing null at arbitrary angles of a nonlinear antenna array.

    Design/methodology/approach – An improved PSO algorithm is designed.

    Findings – The improved PSO method is an efficient and robust global optimizer for minimizing the SLL and placing null at arbitrary angles of a nonlinear antenna array.

    Originality/value – Some improvements, such as the design of some new formulae for both position and velocity updating, the introduction of an age variable, and the devise of an intensification searches using the cross entropy method, are proposed.