A Fast Wavelet-Based Hybrid Method to Model the RCS of Metallic Targets in Maritime Environment

This article focuses on a hybrid wavelet-based model to compute the radar cross section (RCS) of metallic targets in a maritime environment. The latter is based on the parabolic wave equation, solved in the wavelet domain, for the propagation to the target and the wavelet-based method of moments for the scattered field. Key advantages include its ability to account for terrain relief and refraction effects within the propagation channel, as well as providing accurate RCS calculations. Additionally, wavelet-domain compression enables a flexible trade-off between computational efficiency and precision. Numerical experiments in the VHF-band are performed to validate the method.