基于三维GIS的电磁态势生成系统

GIS-based electromagnetic situation generation system

主要针对目前电磁态势生成研究的分散性,无法整体在各个域中表现,且电磁态势生成系统可扩展性差、可重用性不强等问题,提出了一种基于GIS的电磁态势生成体系架构。通过建立一套标准的数据库与GIS引擎结合,将GIS引擎封装成地理信息函数接口,电磁态势生成层通过调用地理信息函数接口与三维场景结合进行电磁计算,再将电磁态势生成层中各个分散的研究以组件的形式集成于系统平台上。二是针对如何将各组件的电磁态势信息连贯起来并保持电磁态势生成的时空一致性问题,提出了一种基于时间轴脚本的电磁态势生成方法。首先将电磁态势生成组件中的事件用脚本文字来描述,再通过脚本编辑器利用脚本文字设计电磁态势生成情节脚本,最后利用脚本执行器将脚本按照时间轴序列配准的方式来触发各个电磁态势生成组件的事件,事件执行时并与对应的地理空间配准。结果表明系统具有良好的扩展性和可重用性,同时具备生成动态、逼真、过程化的电磁态势信息能力。

Focus on the dispersion of the current electromagnetic potential generation research,which cannot be represented in all domains,and the electromagnetic situation generation system has poor scalability and reusability,a GIS-based electromagnetic situation generation architecture is proposed.Combine with a GIS engine by creating a standard database,encapsulate the GIS engine into a geographic information function interface,the electromagnetic situation generation layer performs electromagnetic calculation by calling the geographic information function interface combined with the three-dimensional scene,and integrate the scattered research in the electromagnetic situation generation layer into the system platform in the form of components.The second is how to cohere the electromagnetic situation information of each component and maintain the spatio-temporal consistency of electromagnetic situation generation,a method for generating electromagnetic situation based on timeline script is proposed.First,the events in the electromagnetic situation generation component are described by script text,then use the script editor to use the script text to design the electromagnetic situation to generate the plot script,finally,the script executor is used to trigger the events of each electromagnetic situation generating component according to the time axis sequence registration,and the event is executed and registered with the corresponding geospatial space.The results show that the system has good scalability and reusability,at the same time,it has the ability to generate dynamic,realistic and procedural electromagnetic situation information.