Algoritmo iterativo de propagación espectral para el cálculo de RCS en cavidades conductoras

Abstract

One of the most difficult problems in the RCS prediction of a complex target is the analysis of the cavities existing at the air inlets and outlets of engines. The geometrical complexity of these structures makes difficult the analysis by modal, ray or beam techniques, while their huge electrical size makes computationally prohibitive the analysis by matrix methods. For these reasons, we have developed an iterative spectral propagation algorithm which can be used to calculate the RCS of electrically intermediate or large cavities with certain geometrical features.