罗兰-C ASF修正方法研究

Study on Rectificating Error Method to Loran-C ASF

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 play＇s an important part of error source in Loran navigation system and Beidou/Loran-c integrated navigation system, it seriously affects the positioning precision of the loran system. This paper puts forward a theoretical method and a measuring method of ASF rectification to electric wave spreading of Loran-C, sets up the rectification model of radio spread error,and also presents data of measuring method,that verified the engineering possibility.