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浅析水下PNT体系及其关键技术
许江宁
0
(海军工程大学导航工程系)
摘要:
针对水下用户进行了梳理与分类,分析了水下用户对于PNT服务的需求,以及当前水下PNT体系的能力水平距离满足用户长期需求存在的差距。阐述了当前国际上水下PNT体系的建设现状,以及部分国家对于PNT体系建设的规划。在此基础上,分析了未来水下PNT体系的发展方向。最后,从水下PNT特殊性出发,总结归纳了包含惯性、重力/地磁匹配、水声导航、水下PNT能力评估等技术内容的水下PNT关键技术。
关键词:  水下  定位  导航  授时  PNT
DOI:
基金项目:
XU Jiang-ning
(Department of Navigation, Naval University of Engineering)
Abstract:
The underwater users of PNT system are classified. The gap been requirements of underwater users and the current underwater PNT system is analyzed. The construction conditions of underwater PNT system and the construction plans of some countries are studied. On this basis, the development direction of underwater PNT system is analyzed. Finally, in view of the characteristics of underwater PNT system, key technologies such as inertial technology, gravity/ geomagnetic matching technology, acoustic navigation technology and evaluation technology are introduced
Key words:  Underwater  Positioning  Navigation  Timing  PNT

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