2023年 第25卷 第2期
《中国工程科学》 >> 2023年 第25卷 第2期 doi: 10.15302/J-SSCAE-2023.02.006
PNT体系视角下卫星导航与不依赖卫星导航技术融合发展研究
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摘要
卫星导航自问世以来以其全天候、全天时、低成本的优势，成为广泛使用的导航定位授时（PNT）方式；但在应用层面为，了规避对卫星导航单一手段的过度依赖，“不依赖卫星导航技术”概念被提出并受到重视，如何准确把握两者之间的关系成为现实而迫切的问题。本文概述了卫星导航技术特征与体系定位，进而基于PNT体系视角，对比分析了惯性导航、匹配导航、无线电导航（除卫星导航外）等典型不依赖卫星导航技术的性能、成本、应用场景；辨析了卫星导航与不依赖卫星导航的关系，明晰了卫星导航作为最大共性需求满足者、体系核心与基石的总体定位，量化分析了卫星导航与不依赖卫星导航技术融合的效能。我国PNT体系的科学发展，需要创新突破不依赖卫星导航技术，促进卫星导航和不依赖卫星导航技术深度融合，同时加快低轨导航系统建设，提升卫星导航性能并最大化体系贡献率。
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参考文献
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