Hybrid evolution strategy-downhill simplex algorithm for inverse light scattering problems

Authors:
Demetrio Macías;Gustavo Olague;Eugenio R. Méndez
Affiliations:
Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, B. C., México;Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, B. C., México;Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, B. C., México
Venue:
EvoWorkshops'03 Proceedings of the 2003 international conference on Applications of evolutionary computing
Year:
2003

Citing 3
Cited 0

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Abstract

The rough surface inverse scattering problem is approached with a combination of evolutionary strategies and the simplex method. The surface, assumed one-dimensional and perfectly conducting, is represented using spline curves. Starting from rigorously calculated far-field angle-resolved scattered intensity data, we search for the optimum profile using the evolutionary strategies (µ/ρ+, λ). After a fixed number of iterations, the best surface is finally recovered with the downhill simplex method. Aspects of the convergence and lack of uniqueness of the solution are discussed.