Abstract
In order to fast analyze the aircraft Radar Cross Section (RCS) and accurately reduce it with Radar Absorbing Materials (RAM), a comprehensive analysis method based on Higher-Order Method of Moments (HOMOM), termed Locally Coating Method (LCM), is proposed in this paper. There are two steps to fast analyze coatings for RCS reduction in this method: analyze the RCS of various parts before coating the aircraft; model a coating over the aircraft and analyze the wave absorbing effect of it. The aircraft RCS is calculated as a whole but analyzed in various parts by LCM, and thus the RCS contribution of different parts can be compared without disturbing the current continuity. A model expansion algorithm is also presented in LCM to model absorption coatings on specified aircraft parts for later stage RCS calculation of the coated aircraft.
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