Scattering Modeling for Complex Radar Target based on Space Mapping Technique

A methodology is designed for the construction of frequency domain scattering model for complex targets with small training parameter sets. The space mapping technique is applied to employ the prior information provided by the high-frequency asymptotic method to improve the modeling efficiency. A training scheme with iterative infilling training points is designed so that the generalization accuracy can be guaranteed. With the proposed method, only a smal1 training size are needed to model the scattering response in frequency domain at different aspects. A numerical example with a complex radar target is used to validate the accuracy and efficiency of the proposed model.