The Target Missile Radar Cross Section (rcs) Calculation And Simulation

The Physical Optics (PO) method and the Method of Equivalent Currents (MEC) are discussed starting with the concept of RCS and the basic theory of electromagnetic scattering. First, in the geometry modeling of complex target, the Grid Model used in the faceting approach, the Parametric Surface Approach and the decompounding approach are introduced. Second, facet division and its approximation as well as the shading algorithm are discussed on Faceting Approach. Finally, essential model is generated according to the original geometry data of the complex target. The RCS of the complex target is computed using the faceting approach with this model. The simulation of the result is made by means of the decompounding approach to an complex target made of typical objects. Furthermore, the statistical characteristic analysis of the RCS discrete data obtained by the simulation is carried out.The thesis mainly discusses decompounding approach of complicate targets' RCS computation, basing on the consideration of project application. First, the electromagnetic scattering of typical objects is analyzed. Second, The RCS of the complex target is computed using the decompounding approach, after breaking the drone into active parts and passive parts reasonably, then comparing with the result of typical object's RCS from the faceting approach. Last, statistical characteristics of the drone's RCS are deduced.The result of drone's RCS is in good agreement with RCS of the typical object, which shows decompounding approach is valid in the project research of drone's RCS computation.