Poles Extracting and Analyzing of Complex Stealth Target Based on Matrix Pencil Method

Complex resonance frequencies contained in target´s late-time transient responses are independent of target aspect and radar signal´s polarization only relate to inherent characteristic, such as, size and shape of the target. This paper introduced the Prony method and MPM, and make comparisons between them by using the reconstructed late time response to estimate the anti-noise performance. Then MPM method is chose to extract the poles of complex stealth target, the result shows that poles extracted from complex stealth target is also independent of aspect, and it can be used as a effective character of stealth target identification.