Solving “Antenna Array Thinning Problem” Using Genetic Algorithm

Thinning involves reducing total number of active elements in an antenna array without causing major degradation in system performance. Dynamic thinning is the process of achieving this under real-time conditions. It is required to find a strategic subset of antenna elements for thinning so as to ha...

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Bibliographic Details
Published in:Applied computational intelligence and soft computing 2012-01, Vol.2012 (2012), p.1-14
Main Authors: Jain, Rajashree, Mani, G. S.
Format: Article
Language:English
Subjects:
Antenna arrays
Arrays
Dynamic programming
Dynamical systems
Genetic algorithms
Heuristic
Mathematical models
Methods
Nonlinear dynamics
Optimization
Studies
Thinning
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Summary:Thinning involves reducing total number of active elements in an antenna array without causing major degradation in system performance. Dynamic thinning is the process of achieving this under real-time conditions. It is required to find a strategic subset of antenna elements for thinning so as to have its optimum performance. From a mathematical perspective this is a nonlinear, multidimensional problem with multiple objectives and many constraints. Solution for such problem cannot be obtained by classical analytical techniques. It will be required to employ some type of search algorithm which can lead to a practical solution in an optimal. The present paper discusses an approach of using genetic algorithm for array thinning. After discussing the basic concept involving antenna array, array thinning, dynamic thinning, and application methodology, simulation results of applying the technique to linear and planar arrays are presented.
ISSN:1687-9724
1687-9732
DOI:10.1155/2012/946398