一种基于局部可重构技术的DMR设计  

A DMR Design Based on Local Reconfigurable Technique

作　　者：丰坤 李跃华[1] 张金林[1] 

机构地区：[1]空军预警学院,武汉430019

出　　处：《舰船电子对抗》2015年第6期33-38,共6页Shipboard Electronic Countermeasure

基　　金：青年创新基金;项目编号:2013QNCX0112

摘　　要：针对机载雷达等空中预警装备要求工作可靠性高、体积小、实时性强的特点,提出了一种基于局部可重构技术的双模冗余(DMR)设计。该技术是在传统硬件冗余的基础上,把核心模块置于现场可编程门阵列(FPGA)的动态区域,当检测到工作模块故障时,立即把热备份模块接入工作系统,同时通过动态可重构技术对故障进行修复,系统的运行不会因故障而中断。该技术能够满足机载雷达的工作要求,使其能够长时间、不间断地担负战备值班任务。实验表明,该方法能够提高可靠性,减少资源消耗,在机载雷达上具有广阔的应用前景。Aiming at the characteristics of high reliability, small volume and good real-time perform- ance desired by air early-warning equipment such as airborne radar,etc. ,this paper presents a dual module redundancy （DMR） design based on local reconfigurable technique. The technique is based on the traditional hardware redundancy,and the core module is set in the dynamic area of field programmable gate array （FPGA）. When the operating module fault is tested,the thermal spare mod- ule is immediately connected into operating system, at the same time the dynamic reconfigurable technique is used to rehab the fault,so the system can not be interrupted for faults. The technique can satisfy the operating requests of airborne radar, make the radar undertake the combat tasks continuously for a long time. The experiment shows that this method can raise the reliability and reduce resource consumption,has a broad application prospect in airborne radar.

关 键 词：机载雷达 局部可重构技术 双模冗余 现场可编程门阵列 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]