摘要
Abstract
PNT technologies have been used widely in many kinds of applications ,inclu‐ding military ,commerce ,civil ,science and so on .Many countries have placed great empha‐sis on PN T technologies and plenty of new methods spring up in recent years ,w hich are in‐statephase or in study and development . This paper reviews various valuable and useful methods of positioning and navigation ,including X‐ray navigation ,geomagnetic navigation , gravity navigation ,blue‐green laser navigation ,all‐source navigation ,micro‐PNT ,micro/nano‐satellites navigation ,quantum positioning system (QPS) ,and then analyzes their prin‐ciples ,advantages and disadvantage .T he requirements of availability ,autonomy ,covert and anti‐interference performance in different situations could be satisfied with reasonable combi‐nation of these PNT technologies .The analysis and conclusions can provide valuable refer‐ences for the development of potential navigation technologies and national PNT architecture desig n .关键词
导航/定位/授时/体系结构/PNTKey words
Navigation/position/timing/architecture/PN T分类
天文与地球科学
