节点文献
电子战中实时模拟高密度多体制雷达脉冲信号产生系统设计
Design of Real-time Simlation High-density and Multi-style Radar Signal Create System in Electronic Warfare
【作者】 陈杰；
【作者基本信息】 南京理工大学 ， 电子与通信工程， 2008， 硕士
【摘要】 电子对抗中的雷达模拟系统,是由多个分系统在高速计算机网络的支持下构成的半实物、强实时试验系统,可以完成对电子对抗装备的射频注入式或开放式模拟试验任务。该系统可模拟地面、机载或弹载雷达的简单或复杂雷达脉冲信号形式进行干扰机或雷达的试验和训练。信号产生模拟器是整个模拟系统的关键部分,根据要求,要完成多种雷达体制下多种信号模拟,在其他系统的配合下完成各种雷达信号的模拟试验。传统的雷达信号模拟系统的设计思想是基于单部雷达模拟的,设计者针对应用背景和用户需求确定算法流程,对生成的高密度、多信号雷达信号序列作出设计。实时高密度多体制雷达信号最终达到的目的是,在一定时间内完成尽可能多的脉冲输出,而且通过软件算法设计完成信号脉冲的完整性和一致性。现阶段通过高速处理设备和高速IO设备,以及乒乓输出设计,可以完成以上设计思路。为满足要求,在系统设计时充分采用新技术,例如采用ETX高性能计算机系统、运用模糊和统计算法处理、应用DMA方式实现板间大数据量下载、应用VxWorks实时操作系统等,这些技术的应用提升了本机实时性和通用性,本文对这些技术的应用进行了阐述。
【Abstract】 Radar simulating system in electric countermeasure is a half practicality and high real time simulating test system which consists of many subsystems supported by computer network , and can fulfill either radar counter equipments RF inject simulation or open simulating test tasks. This system can simulate simple or complex radar pulse signal form of ground, airborne and missile borne radars to do the interference or radar tests. The signal simulator is the key part of the whole test simulation system. It should accomplish various signal simulating tasks of many kinds of radar according to the requirements and fulfill the simulating tests of many kinds of radar signal cooperated with other systems.The design idea of the traditional radar signal simulating system is based on the single radar simulation. The designers ascertain arithmetic flow according to the background and customer, make the design of high-density and multi-signal radar signal sequence . The final aim of real-time high-density and multi-signal radar signal is to output more pulse in stated time as possible, also to achieve integrality and coherence of pulse by software arithmetic design. At present, above thought can achieved by high-speed process equipment, high-speed IO equipment and ping-pong output design.New techniques are applied sufficiently in the process of design to meet the requirements, such as using ETX high-capability computer system, processing by blurry and stat arithmetic, applying VxWorks real-time operating system and so on. The real time and generality are upgraded by applying these techniques. This paper expatiates the application of these techniques.