摘要
多路径效应是严重影响无线电设备低仰角跟踪性能的重要因素。介绍了造成低仰角跟踪不稳定问题的根源——多路径效应。分析了由于海面(地面)反射的电磁波进入天线造成多路径效应的主要原因。结合工程方面的实践经验,提出了适合遥测遥控设备的基于数据处理方法的跟踪技术、多信息源融合措施等低仰角技术,从某设备低仰角试验结果可以得出,以上几项技术在工程应用上取得了成功。
Multi-path effect is an important factor that severely affects tracking capability of radio equipment at low-elevation. In this paper,we introduce the cause of unstable tracking at low-elevation and analyze the fact that surface reflected wave entering antenna mainly causes multi-path effect. According to engineering experiences, we introduce the low-elevation tracking techniques which include tracking technique based on data processing and multi-information source fusion methods suitable for telemetering and telecontrol equipment. From several low-elevation test results of equipment, these techniques have their success on engineering applications.
出处
《无线电工程》
2008年第9期43-46,共4页
Radio Engineering
关键词
多路径效应
低仰角跟踪
数据融合
最优估计
multi-path effect
low-elevation tracking
data fusion
optimized evaluation
