基于HLA的SAR干扰联邦成员研制

【作者】 张巍；

【导师】 沈晓峰；

【作者基本信息】 电子科技大学 ， 信息与通信工程， 2010， 硕士

【摘要】 合成孔径雷达(Synthetic Aperture Radar,SAR)广泛的应用于军事与民用领域,研究SAR的干扰技术对于提高雷达电子战的能力具有重要的现实意义,但是研制SAR的对抗系统是复杂的和困难的。随着计算机仿真技术的进步,基于高阶体系架构(High Level Architecture,HLA)的SAR分布式仿真系统采用先进的分布式计算机仿真规范和面向对象的建模技术,可以逼真的模拟SAR的工作状态,为SAR的研制与性能分析,复杂电磁环境下SAR干扰与抗干扰能力的评估开辟了一条捷径。本文首先介绍了SAR的基本原理,然后详细分析了现有SAR干扰的特点和方法,并对其做了相应的仿真分析。最后设计并实现了基于HLA的SAR分布式仿真系统中干扰联邦成员。本文主要研究内容如下:1.分析了SAR干扰的原理与算法,重点对SAR有源压制式干扰、欺骗式干扰和散射波干扰进行了分析与研究,对这三种干扰样式进行了仿真并对其性能进行了分析与比较。2.研究了高层体系架构及联邦成员的开发流程,并详细描述了HLA的接口规范,时间管理服务和联邦运行支撑环境。给出了基于分布式SAR干扰仿真系统的框架与仿真流程。3.利用软件开发中的面向对象技术(Object-Oriented)实现了一个基于HLA的SAR有源干扰联邦成员。针对多核处理器使用多线程技术提高了欺骗式干扰算法的计算效率,减少了系统运行时间。4.将设计完成的有源干扰联邦成员进行了单元测试,随后将其接入系统进行整个仿真系统的测试,给出了系统运行的测试结果,验证了有源干扰联邦成员的正确性。更多还原

【Abstract】 Synthetic Aperture Radar (SAR) is widely used in military and civil area, and is most significant to develop radar electronic warfare capability. With the developing of computer simulation, a system based on HLA(High Level Architecture) use advanced distributed simulation architecture and Object-Oriented technology can simulate the SAR working state which offers a great help for system design and performance analysis, evaluate the ability of jamming and anti-jamming.Firstly, this dissertation introduces the basic theory of SAR, and then analyzes the method and characteristic of SAR jamming particularly and simulated it accordingly. Finally, develop an active-jamming federate in distributed simulation system based on HLA. The main content of my dissertation is as follows:1. This dissertation analyzers the basic theory and algorithm, emphasizes the active-decoys and active-barrage jamming, simulates and compares this two jamming mode.2. This dissertation researches the techno-frame of HLA and the flow to develop a federate. Including the rule, the interface specification, time management service and Run-time Infrastructure. Finally gives the frame and flow of distributed SAR simulation system based on HLA.3. Using the Object-Oriented technology implements a SAR active-jamming federate. Under the multi-core environment, using multi-thread technology to accelerate calculate efficiency and decrease the runtime.4. Make a unit-test for active-jamming and adding the Federate into the simulation federation, gives the system test result which validate the design and implement of this federate.更多还原