A Simulation Method of HF Multi-hop Radio for Ocean Communication by RBF

HIGH Frequency (HF) radio operates at carrier frequencies that potentially propagate to any point in the world via one or more "reflections" from the ionosphere. The conventional longley-rice model was based on radio propagation theory, which incorporates many measurements of the actual environment. After several years of development and testing, it has become a classic model for dealing with irregular surfaces. Roughly, the transmission loss can be broadly divided into three cases: line of sight propagation loss, diffraction propagation loss, scattering propagation loss.