The Design and Implement of Propagation Path-Loss Model over Sea-Surface under HF

Abstract

A new algorithm “Propagation Path-Loss Model†(PPLM) is introduced in this paper. As a correction coefficient and equivalent reflection coefficient are introduced to simulate the reflection loss of calm and rough sea-surface, a mathematical prediction model of sea-surface propagation is devised. This model focus on the analysis of propagation path and transmission loss of skywave, including the propagation loss in free space and ionosphere and reflection loss over the sea-surface. PPLM permits calculating the propagation losses and evaluating propagating capacity of a certain environment by predicting the propagation distance and maximum hops of signal at a certain power. It also can be utilized to predict the communication time based on a geometrical model of skip zone. All the implements indicates that the model is effective and functional.