Efficient monostatic radar cross section calculationfor parabolic equation method

The parabolic equation (PE) method has been used as an efficient tool to analyze the bistatic radar cross section (RCS) of electrically large targets. By using the monostatic-bistatic equivalence, the monostatic scattering properties can be exploited from the bistatic information of some neighboring scattered angles. Thus a lot of simulations of required incident angles can be avoided. Moreover, more accurate monostatic RCS results can be obtainedfor the proposed method than the direct simulation for different incident angles when the scatterer has large changes along the paraxial direction. Numerical results are given to demonstrate that the proposed method is efficient for the analysis of monostatic scattering properties of electrically large targets.