Singularity Expansion Method: Target Resonances,
Abstract
A unified treatment of the natural mode representations for induced currents and scattered fields is described using elementary concepts of causalty and superposition. The transient back-scattered field is shown to have the form of a constant coefficient exponential series only in the late-time, after the last directly driven response is received from the scatterer. Prior to this, the early-time response is found to be due to both the direct physical optics fields as well as a sum of modulated natural classification using natural modes. Practical implications of this result, regarding aspect-invariant target classification using natural resonances, are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1987
- Accession Number
- ADP005646
Entities
People
- Michael A. Morgan
Organizations
- Naval Postgraduate School