混合目标场景多点协同定位可定位性探讨  

Discussion on feasibility of multipoint cooperative positioning in mixed target scenes

作　　者：郭名静[1,2] 边少锋 熊鑫[1] 单潮龙[1] 张伟[3] GUO Mingjing;BIAN Shaofeng;XIONG Xin;SHAN Chaolong;ZHANG Wei(School of Electrical Engineering,Naval University of Engineering,Wuhan 430033,China;School of Science,East China University of Technology,Nanchang 330013,China;Graduate School,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学电气工程学院,武汉430033 [2]东华理工大学理学院,南昌330013 [3]海军工程大学研究生院,武汉430033

出　　处：《导航定位学报》2019年第2期30-35,共6页Journal of Navigation and Positioning

基　　金：国家自然科学基金(41631072;41771487);江西省教育科学"十三五"规划2018年度课题(18YB099)

摘　　要：针对当前卫星定位研究领域中协同终端节点实现定位难以满足恶劣复杂环境下定位需求的问题,以"协同学"理论为基础,提出待定位目标节点在不同收星条件下的混合定位场景中的多点协同定位形式,对待测目标节点的可定位性进行定量判定:利用卫星定位的伪距方程构建在全部节点可接收卫星信号和部分节点可接收卫星信号场景下待测目标节点的收星数目与待测目标终端节点数之间的关系式;通过选取收星数目分别为4、3和2颗等条件下某具体定位场景中的目标终端节点设计多点协同定位算法,判定多点协同定位的可定位性。实验结果验证了混合目标场景下多点协同定位的可定位条件,为解决终端收星条件不佳的复杂环境下的卫星定位相关研究提供参考。Aiming at the problem that it is difficult to meet the requirement for the positioning of collaborating terminal nodes in the research field of satellite positioning under complicated environments,the paper based on the theory of synergetics,proposed the form of multipoint cooperative positioning in hybrid positioning scenes under different satellite collection conditions for the target terminal nodes to be located,in order to quantitatively judge the positioning feasibility of the target nodes:the relational expressions between the number of satellite collection of the target nodes to be tested and the number of the target terminal nodes to be tested under the scences where all nodes can receive satellite signals and some nodes can receive satellite signals were established with the pseudorange equations of satellite positioning;and the target terminal nodes in some specific positioning scenarios were selected under the conditions of satellite collection number 4,3 and 2 respectively to design the multipoint cooperative positioning algorithm,then the positioning feasibility was judged.Experimental result verified the feasible condition of multipoint collaborative positioning in mixed target scenarios,which could provide a reference for related study.

关 键 词：协同定位 卫星定位 可定位性 全球卫星定位系统 北斗卫星导航系统 

分 类 号：P228[天文地球—大地测量学与测量工程]