Micro-PNT and Comprehensive PNT

doi:10.11947/j.AGCS.2017.20170249

Abstract

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.

Key words: positioning,navigation and timing (PNT), micro inertial navigation sensor, chip scale atomic clock, sensor integration, data fusion, comprehensive PNT

CLC Number:

P228

YANG Yuanxi, LI Xiaoyan. Micro-PNT and Comprehensive PNT[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(10): 1249-1254.

References

[1] SHKEL A M. Precision Navigation and Timing Enabled by Microtechnology:Larsen M. Nuclear Magnetic Resonance Gyroscope[C]//APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts. Atlanta:APS 2011.
[2] 李冀, 赵利平. 美国微定位导航授时技术的发展现状[J]. 国外卫星导航, 2013(3):23-30. LI Ji, ZHAO Liping. The Development Status of American Micro-PNT[J]. Foreign Satellite Navigation, 2013(3):23-30.
[3] Department of Transportation and Department of Defense of USA. National Positioning, Navigation, and Timing Architecture Implementation Plan April 2010[R/OL].[2017-05-10]. http://ntl.bts.gov/lib/34000/34500/34508/2010_National_PNT_Arch.
[4] 杨元喜. 综合PNT体系及其关键技术[J]. 测绘学报, 2016, 45(5):505-510. DOI:10.11947/j.AGCS.2016.20160127. YANG Yuanxi. Concepts of Comprehensive PNT and Related Key Technologies[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(5):505-510. DOI:10.11947/j.AGCS.2016.20160127.
[5] PARKINSON B. Assured PNT for Our Future:PTA. Actions Necessary to Reduce Vulnerability and Ensure Availability[C]//The 25th Anniversary GNSS History Special Supplement.[S.l.]:GPS World Staff, 2014.
[6] DALAL M. Low Noise, Low Power Interface Circuits and Systems for High Frequency Resonant Micro-gyroscopes[D]. Georgia:Georgia Institute of Technology, 2012.
[7] 杨元喜. 国际卫星导航系统的发展及其对我国导航事业的影响[J]. 测绘通报, 1999(9):2-5. YANG Yuanxi. International GNSS Developments and Their Effects on Chinese Navigation System[J]. Bulletin of Surveying and Mapping, 1999(9):2-5.
[8] 杨元喜. 北斗卫星导航系统的进展、贡献与挑战[J]. 测绘学报, 2010, 39(1):1-6. YANG Yuanxi. Progress, Contribution and Challenges of Compass/BeiDou Satellite Navigation System[J]. Acta Geodaetica et Cartographica Sinica, 2010, 39(1):1-6.
[9] 杨元喜, 李金龙, 徐君毅, 等. 中国北斗卫星导航系统对全球PNT用户的贡献[J]. 科学通报, 2011, 56(21):1734-1740. YANG Yuanxi, LI Jinlong, XU Junyi, et al. Contribution of the Compass Satellite Navigation System to Global PNT Users[J]. Chinese Science Bulletin, 2011, 56(21):1734-1740.
[10] 杨元喜, 李金龙, 王爱兵, 等. 北斗区域卫星导航系统基本导航定位性能初步评估[J]. 中国科学:地球科学, 2014, 44(1):72-81. YANG Yuanxi, LI Jinlong, WANG Aibing, et al. Preliminary Assessment of the Navigation and Positioning Performance of BeiDou Regional Navigation Satellite System[J]. Science China Earth Sciences, 2014, 44(1):72-81.
[11] SHKEL A M. Microtechnology Comes of Age[J]. GPS World, 2011, 22(9):43-50.
[12] GUNDETI V M. Folded MEMS Approach to NMRG[D]. California:University of California, 2015.
[13] FANG Jiancheng, QIN Jie. Advances in Atomic Gyroscopes:A View from Inertial Navigation Applications[J]. Sensors, 2012, 12(5):6331-6346.
[14] LARSEN M, BULATOWICZ M, CLARK P, et al. Nuclear Magnetic Resonance Gyroscope[C]//APS Division of Atomic and Molecular Physics Meeting 2015, 2015.
[15] MEGER D, LARSEN M. Nuclear Magnetic Resonance Gyro for Inertial Navigation[J]. Gyroscopy and Navigation, 2014, 5(2):75-82.
[16] SHKEL A. The Chip-scale Combinatorial Atomic Navigator[J]. GPS World, 2013, 24(8):8-10.
[17] 李耐和, 张永红, 席欢. 美正在开发的PNT新技术及几点认识[J]. 卫星应用, 2015(12):34-37. LI Naihe, ZHANG Yonghong, XI Huan. The Exploitation of New PNT Technologies of Us and Some Understanding[J]. Satellite Application, 2015(12):34-37.
[18] 杨元喜, 高为广. 基于多传感器观测信息抗差估计的自适应融合导航[J]. 武汉大学学报(信息科学版), 2004, 29(10):885-888. YANG Yuanxi, GAO Weiguang. Integrated Navigation Based on Robust Estimation Outputs of Multi-sensor Measurements and Adaptive Weights of Dynamic Model Information[J]. Geomatics AND Information Science of Wuhan University, 2004, 29(10):885-888.
[19] YANG Y, ZHANG S. Adaptive Fitting of Systematic Errors in Navigation[J]. Journal of Geodesy, 2005, 79(1-3):43-49.
[20] 杨元喜, 崔先强. 动态定位有色噪声影响函数——以一阶AR模型为例[J]. 测绘学报, 2003, 32(1):6-10. YANG Yuanxi, CUI Xianqiang. Influence Functions of Colored Noises on Kinematic Positioning:Taking the AR Model of First Class as an Example[J]. Acta Geodaetica et Cartographica Sinica, 2003, 32(1):6-10.
[21] 崔先强, 杨元喜, 高为广. 多种有色噪声自适应滤波算法的比较[J]. 武汉大学学报(信息科学版), 2006, 31(8):731-735. CUI Xianqiang, YANG Yuanxi, GAO Weiguang. Comparison of Adaptive Filter Arithmetics in Controlling Influence of Colored Noises[J]. Geomatics and Information Science of Wuhan University, 2006, 31(8):731-735.