Maritime Mobile Channel Transmission Model Based on ITM

Abstract

Aiming to characteristics of transmission path loss in mobile channel which is caused by complex electromagnetic environment on an open sea area, an improved Irregular Terrain Methodology （ITM）model is proposed in this paper. The algorithm first uses a Two-Path Model to calculate the transmission loss in 1km's distance on maritime; Secondly, the characteristics of radio wave propagation on an open sea was corrected by adding cloud, fog fading and rain loss to the mode; Finally, it compares the results obtained by the standard ITM model and the improved ITM model on Matlab simulation software. The results show that the improved ITM model can better reflect characteristics of pelagic mobile channel and can improve the quality of mobile channel transmission compared with standard ITM model.