| 微PNT与综合PNT |
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| 引用本文： | 杨元喜,李晓燕.微PNT与综合PNT[J].测绘学报,2017,46(10):1249-1254. |
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| 作者姓名： | 杨元喜 李晓燕 |
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| 作者单位： | 1. 西安测绘研究所地理信息工程国家重点实验室, 陕西 西安 710054;2. 31009部队, 北京 100088 |
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| 基金项目： | 国家重点研发计划，The National Key Research and Development of China |
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| 摘 要： | 综合定位导航授时是后GNSS(全球卫星导航系统)发展的必然趋势。本文侧重梳理微PNT发展需求和发展现状,分析与之关联的核心关键技术,论述综合PNT与微PNT的关系。强调综合PNT需要大量基础设施投入与建设,而微PNT侧重高技术传感器的集成应用。与现有文献思路不同的是,我们认为,为了实现各类传感器PNT输出结果的坐标基准统一和时间尺度一致,微PNT应包含多模GNSS和芯片级惯性导航和芯片级原子钟等定位定时组件,微PNT强调小型化、个性化、组合化服务终端;微PNT除各PNT组件的小型化外,还包括各组件的深度集成,各类数据的自适应融合和各组件的自主标校;当然,微PNT也强调各传感器信息的时空基准的统一。
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| 关 键 词： | 定位导航授时 微型惯导组件 芯片级原子钟 传感器集成 数据融合 综合PNT |
| 收稿时间： | 2017-05-11 |
| 修稿时间： | 2017-07-07 |
Micro-PNT and Comprehensive PNT |
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| YANG Yuanxi,LI Xiaoyan.Micro-PNT and Comprehensive PNT[J].Acta Geodaetica et Cartographica Sinica,2017,46(10):1249-1254. |
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| Authors: | YANG Yuanxi LI Xiaoyan |
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| Institution: | 1. National Key Laboratory of Geo-Information Engineering, Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China;2. 31009 Troops, Beijing 100088, China |
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| Abstract: | Comprehensive or integrated positioning,navigation and timing is an obvious developing trend following the global navigation satellite system.This paper summarizes the current status of micro-PNT and its developing requirements.The related key technologies are described and the relationship between comprehensive PNT and micro-PNT is analyzed.It is stressed that the comprehensive PNT needs massive infrastructure construction and investment,however,the micro-PNT aims at the integrated applications of high-tech micro sensors.It is different from the current opinions appeared in the literatures,micro-PNT should include multi GNSS integration and micro components of navigation and timing in order to make the PNT outputs refer to a unified coordinate datum and time scale.Micro-PNT focuses on the personalized micro terminal applications.Except for the miniaturization of each PNT component,micro-PNT aims at the deep integration of the micro sensors,adaptive data fusion and self calibration of each component. |
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| Keywords: | positioning navigation and timing (PNT) micro inertial navigation sensor chip scale atomic clock sensor integration data fusion comprehensive PNT |
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