Research On Underwater Vehicle Penetration Space Modeling Method

Along with the development of the armed forces in modern war, underwater vehicle hasbeen an important deterrent in a sea battle, the penetration technology of which has been paidhigh attention to. This paper puts forward some related notions of underwater vehiclepenetration, and gives prominence to the key points that how to establish environmental spaceof underwater vehicle simulation, thereby studying the modeling method of penetration spacefor underwater vehicle on it. By rebuilding real penetration environment, underwater vehiclepenetration space modeling provides the vehicle penetration with concealment and security.Therefore, the paper builds a model which can reflect underwater penetration space truly. Thismodel will provide complete and accurate description information for penetration routeplanning.According to actual requirements of penetration space for underwater vehicle, the paperputs forward penetration geospatial space modeling method and penetration threatenviewsheds space modeling method. What’s more, the paper brings in the sea derrick platformobstruction information on the basis of navigation safety. The main work is as follows:First of all, this paper analyses the research status of the modeling method of penetrationspace, and give the content, method and general process of underwater vehicle penetrationspace model based on the study of spatial modeling methods.Secondly, study the modeling method of penetration geospatial space, and then analyzemethod of seafloor terrain reconstruction. The paper chooses DEM grid model of regular gridto build penetration terrain, aiming at the randomness and complexity of seafloor terrain. Thepaper combines multifractal measure and kriging to rebuild seafloor terrain, which can solvethe problem of low precision and high smoothness of traditional interpolation method onbuilding seafloor terrain. The simulative result describes seafloor terrain truly and acquiresterrain information of local area accurately.Thirdly, explore the modeling method of penetration threaten viewsheds space. Thepaper studies the important factors inflecting the results of visibility analysis on the basis ofterrain visibility method. The paper considers the ray model as a visibility analysis model forsolving the inadaptability of traditional land ray while using under the water, and deduce theformulas to calculate acoustic ray, then talks about the terrain visibility analysis method ofacoustic ray and makes simulation, which brings penetration threaten viwsheds space modeland its three-dimensional graph.Finally, discuss the fusion of underwater vehicle penetration space model methods. The paper fuses penetration geospatial space model, penetration threaten viewsheds space modeand navigation obstacle model. On the fusion problem of penetration space model, the paperputs forward the entire design alternative of underwater vehicle penetration space model andsimulate it.The threaten danger index of each position in terrain areas will be provided basedon the relevant information about penetration space model.