多源自主导航系统基本特性研究

Research on Basic Characteristics of Multi-source Autonomous Navigation System

在新一代国家综合定位导航授时(PNT)体系中,多源自主导航系统以北斗导航为基石、以惯性导航为支撑,可满足终端即插即入、无缝衔接、无感切换、可信完备等需求,是面向定位导航授时服务等终端应用的关键核心技术。基于任务场景、运动环境以及运载体动力学等特征,提出并分析了多源自主导航系统可检测性、可重构性、可信性、完备性等基本特性的概念及其内在逻辑关系,并结合多种信号、信息、数据和技术资源,系统阐述了多源自主导航的方法体系和理论框架,为国家综合PNT体系发展与应用提供参考。

Based on the Beidou navigation system as cornerstone and supported by inertial navigation,the multi-source autonomous navigation system is able to meet the needs of terminal plug and play,seamless connection,sensorless switching,and dependability and completeness,which plays an important role for the terminal application of positioning and navigation in the new generation of national integrated PNT(Positioning,navigation and timing)system.Starting from the main tasks,motion environment and vehicle dynamics characteristics,the concepts of detectability,reconfiguration,dependability and completeness of multi-source autonomous navigation system are raised up and the inherent logic relationship of the above concepts is analyzed.Combined with a variety of signal,information,data and technical resources,method system and theoretical framework of multi-source autonomous navigation are systematically summarized,which could make a contribution for the development and application of national comprehensive PNT system.