The Research of Modeling Method about Underwater Vehicle Penetration Threaten Viewsheds Space

According to the threat view sheds space modeling of underwater vehicle, the terrain visibility analysis method based on the acoustic line is proposed in this paper. It considered the ray model as a visibility analysis model for solving the inadaptability of traditional land ray while using under the water, and deduced the formulas to calculate acoustic ray. From the simulation results, it can be seen the threat view sheds can be calculated.