水下导航定位弹性架构及关键技术
Key technologies and the resilience architecture of underwater navigation and positioning systems
曾安敏 1明锋 1吴富梅1
作者信息
- 1. 地理信息工程国家重点实验室,陕西西安 710054;西安测绘研究所,陕西西安 710054
- 折叠
摘要
水下导航定位是综合PNT体系的重要组成部分.水下环境复杂,水下用户的导航定位服务应尽可能利用一切可利用的PNT信息源.本文对水下导航定位所涉及的技术进行系统梳理,并从技术体系多机理性、信息源基础设施冗余互补、用户终端弹性化3个方面设计了水下导航定位体系的弹性化架构,建议水下导航定位技术体系应由以惯性导航、原子钟为核心的多机理技术组成,信息源基础设施架构由考虑合理冗余布局的实体基础设施和高精度数字基础设施组成,导航定位终端弹性设计强调场景智能感知、传感器开放弹性接入、信息弹性融合.最后讨论水下弹性导航定位的基础设施建设和弹性终端研制的关键技术.
Abstract
Underwater navigation and positioning are important parts of a comprehensive PNT system.In extreme and complex natural conditions,navigation and positioning services for underwater users must use all available re-sources.Herein,navigation and positioning technologies for underwater users are systematically identified.Then,the resilience architecture of underwater navigation and positioning systems is designed considering three aspects:technical architecture with multimechanism,infrastructure architecture with redundancy and complementarity of the PNT resource,and resiliency of the user terminal.The technical architecture of underwater navigation and positio-ning services should be composed of multimechanism technologies with inertial navigation and atomic clock as the core technologies.The infrastructure architecture of information resources should consist of physical infrastructure and high-precision digital infrastructure that considers reasonable redundant layout.The resilience design of the un-derwater PNT terminal should emphasize the intelligent perception of the scene,the ability of the plug-and-play in-terface with open system architecture,and resilient fusion for data processing.Finally,key technologies for the in-frastructure construction and research and development of the PNT terminal are discussed.
关键词
水下导航定位/弹性架构/PNT基础设施/传感器集成/弹性融合模型/惯性导航/航位推算/物理场匹配导航Key words
seafloor navigation and positioning/resilience architecture/PNT infrastructure/integration of sensors/adaptive data fusion/inertial navigation/dead reckoning navigation/physical field matching navigation引用本文复制引用
基金项目
国家重点研发计划(2020YFB0505801)
国家实验室基金(2021WHZZB1001)
国家自然科学基金(41931076)
出版年
2023
国家科技期刊平台
NSTL
维普
万方数据