Cramer-Rao bound analysis of distributed positioning in sensor networks

被引：115
|
作者：
Larsson, EG [1 ]
机构：
[1] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA
来源：
IEEE SIGNAL PROCESSING LETTERS | 2004年 / 11卷 / 03期
关键词：
ad hoc networks; Cramer-Rao bound (CRB); global positioning system (GPS); radio-location; sensor networks;
D O I：
10.1109/LSP.2003.822899
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In future applications of sensor networking techhology, it is envisioned that nodes will be able to determine their geographical position by measuring the range differences between one another in a collaborative fashion. The aim of this letter is to provide quantitative expressions that can be used both to facilitate an understanding for why such distributed positioning works and to assess the ultimately achievable accuracy in practice. Specifically, we compute the Cramer-Rao bound on the positioning accuracy, under different assumptions on the network synchronization. Numerical examples illustrate our results.
引用
收藏
页码：334 / 337
页数：4
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