摘要
罗兰-C电波在陆地路径上的传播误差是罗兰导航系统及北斗／罗兰组合导航系统中的重要误差源，严重影响系统的导航定位精度。本文提出了罗兰-C长波信号在陆地上传播的ASF修正的理论方法和实测方法，建立了电波传播误差修正的模型，并给出了实测方法的具体测试数据，充分验证了该方法的工程可行性。
Spread error of Loran-C electric wave in the land route plays an important part of error sources in Loran navigation system and Beidou/Loran-C integrated navigation system, it seriously affects the positioning precision of Loran system. This paper puts forward a theoretical method and a measuring method of ASF rectification to electric wave spread of Loran-C, sets up the rectification model of radio spread error, and also presents the testing data of measuring method ,which verified the possibility in engineering.
基金
国防重点基金项目：组合导航系统的ASF修正研究.基金号.60374068
关键词
罗兰-C
ASF修正
电波传播
导航
定位
Loran-C, ASF Rectification, Electric Wave Spread, Navigation, Positioning.
