Position Mutated Hierarchical Particle Swarm Optimization and its Application in Synthesis of Unequally Spaced Antenna Arrays

2012 ◽  
Vol 60 (7) ◽  
pp. 3174-3181 ◽  
Author(s):  
Rajarshi Bhattacharya ◽  
Tarun Kanti Bhattacharyya ◽  
Ramesh Garg
Keyword(s):  
Particle Swarm Optimization ◽  
Antenna Arrays ◽  
Particle Swarm ◽  
Swarm Optimization ◽  
Unequally Spaced

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

2013 ◽  
Vol 33 (1/2) ◽  
pp. 65-73 ◽  
Author(s):  
Huijun Deng ◽  
Xue Li ◽  
Libao Sun ◽  
Shiyou Yang
Keyword(s):  
Particle Swarm Optimization ◽  
Antenna Array ◽  
Antenna Arrays ◽  
Particle Swarm ◽  
Optimization Method ◽  
Entropy Method ◽  
Swarm Optimization ◽  
Content Type ◽  
Cross Entropy Method ◽  
Improved Pso

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.

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