A New 2D Fast Physical Optics Method

Abstract:

A new Fast Physical Optics method is introduced for computing backscattered fields at high frequencies. A stokes-type method is presented for computing highly oscillatory integrals a over simplex from extremal points and the stationary phase points of the simplex. The computational cost of the scattering integral behaves as O(1) with frequency.

Año de publicación:

2006

Keywords:

• Highly oscillatory integrals
• integration
• Morse theory
• Path deformation
• Physical Optics
• Radar Cross Section

Fuente:

scopus