Hybrid natural mode and scattering center method for the representation of radar target impulse response

The singularity expansion method which has received a great deal of attention over the last two decade years is an effective computational tool in dealing with the impulse response of a radar target. However, the incompleteness of the singularity expansion method involving the resonance frequencies of a radar target is now well known and well understood. Indeed, in the early time, the complex resonance model is an improper model and must be supplanted, or supplemented, by techniques that consider the local features of the scattering object. A new hybrid method is considered by using the singularity expansion and scattering center methods involving the singularity of the surface of a radar target. This method should make it better to illuminate the scattering mechanism of a radar target