Efficient Algorithm for Calculation of Radar Cross Section
Abstract
A new formulation for the calculation of radar cross section of objects of arbitrary shape based on the solution of the electromagnetic wave equation in a natural coordinate system that conforms to the shape of the boundaries has been developed. The natural coordinate system is determined from the solution of an elliptical partial differential equation subject to Dirichlet boundary conditions. The basic approach is to solve the electromagnetic wave equation expressed in the natural coordinate system in a region between the scattering object and an fictitious interface that fully envelopes the object (a circle for two dimensional objects and a sphere for three dimensional objects). Outside the interface, the wave field can be expressed as infinite series of Bessel types of functions. A unique solution is obtained by matching the boundary conditions at the fictitious interface.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 27, 1989
- Accession Number
- ADA210785
Entities
People
- Betriz Cassis
- D. M. Audet
- Eduardo Saravia
- James F. Pipkins
- James T. Woo