The nose-on echo area of axially symmetric thin bodies having sharp apices

This paper proposes an extension of the physical optics method which is simple and valid in both the Rayleigh and resonance regions for the calculation of the nose-on echo area of axially symmetric bodies which are thin compared to the axial length and have sharp apices at both ends. The extended physical optics method assumes the physical optics current over the entire surface of the scatterers. Experimental verification of the method has been carried out by Blore recently [1]. Some comments are made on the relation of the method to the conventional physical optics method, extension to bistatic scattering, and limitations of the method.