Aplicación de algoritmos genéticos y recocido simulado a la reconstrucción del diagrama de radiación de antenas
Date
2004-09Derechos
© 2004 URSI España
Publicado en
URSI 2004, XIX Simposium Nacional de la Unión Científica Internacional de Radio, Barcelona
Abstract:
The performance of different local and global
optimisers applied to antenna far-field pattern prediction
from planar near-field information is presented. The
method proposed replaces the antenna under test by
equivalent magnetic surface currents whose components
are computed from reference near-field data using an
appropriate optimisation technique. From the optimised
equivalent model, antenna far-fields can be
reconstructed. The Nelder Mead downhill simplex
algorithm, along with global optimisers such as genetic
algorithms (GA) and simulated annealing (SA) were all
investigated and compared. Numerical results
demonstrate that hybrid GA outperform local
optimisers, classical real and binary encoding GA and
SA. Results of near-field to far-field transformation are
also included and discussed.
Collections to which it belong
- D12 Congresos [545]