Hybrid MoM-CG RCS Estimation of Dihedral Corner Reflector
Keywords:
Radar cross section, method of moments, conjugate gradient, dihedral corner reflectorAbstract
An efficient numerical-based accelerating method for the computation of radar cross section of conducting dihedral corner reflector is presented. The RCS formulation is based on Method of Moments. The integral equation describing the scattering problem is discretized into a set of linear system of equations, which in turn is solved for the equivalent currents defined on the structure via equivalence principle. The equivalent currents thus obtained are further processed to determine the radar cross section. The entire process is further improved in terms of computational memory and time for larger number of unknowns by means of Conjugate Gradient-based accelerating algorithm. The computed results are validated against those obtained through simulation in COMSOL and the measurements.
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References
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