Abstract
ABSTRACTThis paper presents a semi-deterministic facet model based on the combination of the two-scale theory and the small slope approximation (SSA). Based on the model, normalized radar cross section (NRCS) and the Doppler spectra from electrically large nonlinear ocean scenes are analysed at moderate and large incidence angles. The analytic scattering amplitude of small-scale capillary waves based on the local configuration angles is conducted. Different from the conventional two-scale model (TSM), the model is a field-based rather than RCS-based model, which considerably widens its potential applications. In order to take into account the influence of nonlinear hydrodynamics on echo characteristics, the choppy wave model (CWM) is adopted to simulate nonlinear surfaces. Several examples of bistatic NRCS and Doppler spectra are given with comparison and analysis, which validate the rationality of the model at moderate and large incidence angles. In addition, the running time and memory consumption comparisons can indicate the model is more efficient than the SSA.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
