基于VxWorks的嵌入式二次雷达航迹记录仪设计  

Design of Record and Replay Module Based on VxWorks for Secondary Surveillance Radar Tracks

作　　者：韩林[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2012年第4期581-585,共5页Telecommunication Engineering

摘　　要：为实现对二次雷达航迹数据的实时记录以及事后的回放分析,设计并研制了基于VxWorks实时系统的嵌入式记录仪,采用自定义缓冲队列的数据传输机制,充分考虑了任务之间的同步及互斥,并利用PC104板卡的硬件辅助时钟进行系统设计。实践证明,在航迹数据均值速率3.84 kbyte/s(96批/秒)(峰值速率为20.48 kbyte/s即512批/秒)的情况下,能达到正常实况回放的效果。The module based on Vxworks is designed and developed to record and replay the tracks in the Secondary Surveillance Radar（SSR）. The mechanism of buffer queue customed is used in software design, in which the synchronization and mutex between tasks is considered, and the auxiliary clock of PC104 is adopted. The practice shows that the tracks relayed in the monitor can achieve the effect like live Telecast video after the data in the average 3.84 kbyte/s rate （96 packet/s） （the peak 20.48 kbit/s rate or 512 packet/s）） is recorded.

关 键 词：二次雷达 航迹数据 记录仪 VXWORKS嵌入式系统 缓冲队列 辅助时钟 任务互斥 

分 类 号：TN957[电子电信—信号与信息处理]