仿真空间服务原理与实现

Simulation Spatial Service:Concepts and Implementation

随着现代仿真技术领域的不断扩展和先进分布式仿真技术的兴起,仿真系统的规模和复杂性与日俱增。面向过程的建模与仿真方法,由于实体、过程和环境之间的相互耦合,已无法满足像电子战这种实体众多、时空交互关系错综复杂的大型系统仿真的需求。面向对象建模与仿真以公共仿真服务的形式为所有仿真对象提供统一的时间、空间描述和一致的自然环境效应,是实现交战级仿真的有效途径。仿真空间服务是空间一致性在仿真中的实现,负责维护和管理仿真中所有空间对象的运动状态和对象之间的空间关系。文中介绍空间服务的基本原理、数学描述及工程实现,最后给出一个基于空间服务的“飞行表演”仿真实例。

With the development of modem simulation technology and the blossom of Advanced Distributed Simuahion（ADS） , the scale and complexity of simulation systems are also dramaticly increasing. Because of the coupling of different entities and objects in a simulation, traditional process - oriented simulation methodology can not meet the reguirement of huge complex system simulations such as electronic warfare simulation with so many objects and so complex space - time relationship. Object - Oriented Modeling and Simulation provides consistent space - time description and nature environment effects for all simulation objects through the form of common simulation services, so it is an effective and efficient approach to realize engagement simulations. Simulation Spatial Service is the implementation of spatial - consistency in simulations. It is responsible for maintaining spatial information about all objects in a simulation. This paper introduces the concept of Spatial Service, discusses its mathematical presentation and engineering implementation, and presents a so - called ＂flight show＂ simulation.