Noise level in a marine environment has raised extensive concern in the scientific community.The research is carried out on i4 Ocean platform following the process of ocean noise model integrating,noise data extractin...Noise level in a marine environment has raised extensive concern in the scientific community.The research is carried out on i4 Ocean platform following the process of ocean noise model integrating,noise data extracting,processing,visualizing,and interpreting,ocean noise map constructing and publishing.For the convenience of numerical computation,based on the characteristics of ocean noise field,a hybrid model related to spatial locations is suggested in the propagation model.The normal mode method K/I model is used for far field and ray method CANARY model is used for near field.Visualizing marine ambient noise data is critical to understanding and predicting marine noise for relevant decision making.Marine noise map can be constructed on virtual ocean scene.The systematic marine noise visualization framework includes preprocessing,coordinate transformation interpolation,and rendering.The simulation of ocean noise depends on realistic surface.Then the dynamic water simulation gird was improved with GPU fusion to achieve seamless combination with the visualization result of ocean noise.At the same time,the profile and spherical visualization include space,and time dimensionality were also provided for the vertical field characteristics of ocean ambient noise.Finally,marine noise map can be published with grid pre-processing and multistage cache technology to better serve the public.展开更多
虚拟海战场的三维场景生成与实时显示是构成虚拟海战场视景仿真系统的重要部分,包括几何形体建模、纹理映射以及视觉效果处理等内容。以Mu ltiG en C reator为建模平台,通过完成一个仿真模型讨论了解决建模逼真度与仿真实时性矛盾的一...虚拟海战场的三维场景生成与实时显示是构成虚拟海战场视景仿真系统的重要部分,包括几何形体建模、纹理映射以及视觉效果处理等内容。以Mu ltiG en C reator为建模平台,通过完成一个仿真模型讨论了解决建模逼真度与仿真实时性矛盾的一些措施;基于Vega仿真软件环境开发了海洋战场中的各种复杂场景特效,解决了非视觉物理量的可视化问题;利用V isua l C++开发了视景仿真程序,解决了视景驱动,自动视点切换及仿真记录回放等具体问题。仿真结果表明,该系统较好地满足了视景仿真实时性和逼真度的要求。展开更多
基金supported by the Global Change and Air-Sea Interaction Project (GASI-03-01-01-09)the National Natural Science Foundation of China under Grant No.61170106+1 种基金the Project funded by China Postdoctoral Science Foundation under Grant No.2015M571993Qingdao Postdoctoral Application Research Funded Project
文摘Noise level in a marine environment has raised extensive concern in the scientific community.The research is carried out on i4 Ocean platform following the process of ocean noise model integrating,noise data extracting,processing,visualizing,and interpreting,ocean noise map constructing and publishing.For the convenience of numerical computation,based on the characteristics of ocean noise field,a hybrid model related to spatial locations is suggested in the propagation model.The normal mode method K/I model is used for far field and ray method CANARY model is used for near field.Visualizing marine ambient noise data is critical to understanding and predicting marine noise for relevant decision making.Marine noise map can be constructed on virtual ocean scene.The systematic marine noise visualization framework includes preprocessing,coordinate transformation interpolation,and rendering.The simulation of ocean noise depends on realistic surface.Then the dynamic water simulation gird was improved with GPU fusion to achieve seamless combination with the visualization result of ocean noise.At the same time,the profile and spherical visualization include space,and time dimensionality were also provided for the vertical field characteristics of ocean ambient noise.Finally,marine noise map can be published with grid pre-processing and multistage cache technology to better serve the public.
文摘虚拟海战场的三维场景生成与实时显示是构成虚拟海战场视景仿真系统的重要部分,包括几何形体建模、纹理映射以及视觉效果处理等内容。以Mu ltiG en C reator为建模平台,通过完成一个仿真模型讨论了解决建模逼真度与仿真实时性矛盾的一些措施;基于Vega仿真软件环境开发了海洋战场中的各种复杂场景特效,解决了非视觉物理量的可视化问题;利用V isua l C++开发了视景仿真程序,解决了视景驱动,自动视点切换及仿真记录回放等具体问题。仿真结果表明,该系统较好地满足了视景仿真实时性和逼真度的要求。
