一种导航新技术:协作机会导航  

A New Navigation Technology:Collaborative Opportunistic Navigation

作　　者：刘蔚[1] 康永[1] 

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2015年第1期71-75,共5页Modern Navigation

摘　　要：现实环境下,包含多种无线电信号,当GNSS系统使用受到限制时,利用周围射频环境中的机会信号提取定位和授时信息,通过多个机会导航接收机共享信息,构建并不断完善所需信号的整体框架,形成了被称为协作机会导航的新型导航体制。本文介绍了协作机会导航的产生背景和基本思想,从环境可观测性角度,讨论了协作机会导航的实现方法,并对协作机会导航系统的应用前景进行了展望。In the plenitude of ambient radio frequency signals in GNSS-challenged environments, a new paradigm termed collaborative opportunistic navigation （COpNav） is proposed to overcome the limitations of GNSS-based navigation. Receivers extract positioning and timing information from ambient radio frequency signals of opportunity and share information to construct and continuously refine a global signal landscape. The background and the concept of COpNav are introduced in this paper. From the aspect of environment observability, several hot research points in COpNav are discussed. At last, the developments and applications of COpNav system are prospected.

关 键 词：协作机会导航 机会信号 无线电导航 全球导航卫星系统 估计 可观测性 

分 类 号：TD[矿业工程] V448[航空宇航科学与技术—飞行器设计]