Abstract
A new shooting and bouncing ray (SBR) simulator based on the hybrid scheme of GO/PO/SDFM/EEC method is developed for the accurate prediction of composite scattering from a low altitude target above the electrically very-large-scale sea surface. It can adequately deal with the complex local electromagnetic interactions between the target and the large scope sea surface. The method is compared with the exact computational electromagnetic solver FEKO-MLFMM to validate its accuracy and efficiency. Then, it is applied to simulate the bistatic and monostatic scattering characteristics of an airplane above the electrically large sea surface at X-band, for different sea states. The results reveal the contributions from the target, sea surface, and interactions, which are of significance for radar target detection and remote sensing in real maritime environments.
Highlights
The results reveal the contributions from the target, sea surface, and interactions, which are of significance for radar target detection and remote sensing in real maritime environments
Composite electromagnetic scattering from a target above sea surface has attracted great attention in recent years, since it has a wide range of applications in target detection and tracking, remote sensing, radar imaging regime, and so forth [1,2,3,4]
In the semideterministic facet model (SDFM), the sea surface is approximated by the large planar facets with short wave superimpositions
Summary
Composite electromagnetic scattering from a target above sea surface has attracted great attention in recent years, since it has a wide range of applications in target detection and tracking, remote sensing, radar imaging regime, and so forth [1,2,3,4]. The traditional SBR method comprises a ray tracing process on the geometrical optics (GO) and physical optics (PO)/Kirchhoff approximation (KA) method to handle the coupling interactions among the meshed facets of the simulation model. In this process, a fine mesh size (smaller than 1/10 of the incident wavelength) for both the target and the sea surface is required. The accuracy and efficiency of the simulator are approved, and it is well applied in studying the composite scattering from an airplane target above the electrically large scope sea in the practical scene at different sea states
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
