天波超视距雷达的回溯关联技术  

A Retrospective Association Technology in Sky-wave Over-the-horizon Radar

作　　者：明亮[1] 陈志坚[1] 余陈钢[1] 唐鸣[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2010年第11期21-24,28,共5页Modern Radar

摘　　要：传统的数据关联算法中,若连续几个周期内的目标回波不满足建批准则,则会导致首次定位时间滞后于雷达首次发现时间。针对天波超视距雷达,文中提出一种回溯关联技术,该技术通过对建批阶段之前的回波进行回溯,将找到的点迹和建批阶段的航迹一并平滑输出。通过数据验证表明,基于回溯关联技术的目标跟踪算法可将目标定位时间更接近于雷达发现时间,在一定意义上提前了雷达定位时间,还可以将该技术推广到其他复杂环境下的雷达中。For the conventional data association algorithms,the first orientation time to one target will be behind the first detection time if some related echoes in the successive periods don＇t be confirmed to the real object.In this paper,a retrospective association technology is presented for sky-wave over-the-horizon radar.The echoes before one target＇s confirmation time can be found in this technology.Moreover,these echoes will be smoothed and sent to display along with the echoes in the confirmation periods.It is showed that the track algorithm based on this technology can close the first orientation time to the first detection time.Thus,the retrospective association technology can advance the first orientation time in some meaning.Meanwhile,this technology can be extended to other radars in complex background.

关 键 词：超视距雷达 数据处理 回溯关联 

分 类 号：TN958.93[电子电信—信号与信息处理]