室内定位中锚节点位置的协作式估计  

Locating the Anchor Nodes for Indoor Positioning in a Collaborative Way

作　　者：李文广[1] 陈冠宇[1] 王智勇[1] 

机构地区：[1]浙江省测绘大队,浙江杭州310030

出　　处：《测绘与空间地理信息》2015年第11期71-73,77,共4页Geomatics & Spatial Information Technology

基　　金：精密工程与工业测量国家测绘地理信息局重点实验室(No.PF2013-10);广西区研究生教育创新计划项目(YCSZ2014151)资助

摘　　要：在许多基于测距的室内定位研究中假设锚节点的位置事先已知在实际应用中是不成立的,需要在提供定位服务之前确定锚节点的位置。针对能否获得锚节点之间距离的两种情况,提出了一种利用若干位置已知的采样点及位置未知的采样点对室内锚节点位置进行协作式估计的方法,并对其估计方差的克拉美劳界进行分析。仿真结果证明了该方法的有效性。The assumption that the locations of the anchor nodes are known in many ranging based indoor positioning researches is not true in real situation. Their locations should be determined before providing location- based services. Considering whether the distances information between the anchor nodes could be obtained,a method to locate the indoor anchor nodes in a collaborative way with several known and unknown sampling points is proposed. Its performance is studied based on Cramer-Rao bound,and the simulation results show the effectiveness of the method.

关 键 词：室内定位 锚节点 协作式定位 克拉美劳界 

分 类 号：P25[天文地球—测绘科学与技术]