Hybrid Evolution Strategy-Downhill Simplex Algorithm for Inverse Light Scattering Problems

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.

• Type: Conference
• Year: 2003
• Where: EVOW
• Authors: Demetrio Macías, Gustavo Olague, Eugenio R. Méndez
• Keywords: Artificial Intelligence, Evolutionary Strategies, EVOW 2003, Rough Surface Inverse, Simplex Method