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GDOP and the CRB for Positioning Systems

Wanchun LI, Ting YUAN, Bin WANG, Qiu TANG, Yingxiang LI, Hongshu LIAO

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Summary :

In this paper, we explore the relationship between Geometric Dilution of Precision (GDOP) and Cramer-Rao Bound (CRB) by tracing back to the original motivations for deriving these two indexes. In addition, the GDOP is served as a sensor-target geometric uncertainty analysis tool whilst the CRB is served as a statistical performance evaluation tool based on the sensor observations originated from target. And CRB is the inverse matrix of Fisher information matrix (FIM). Based on the original derivations for a same positioning application, we interpret their difference in a mathematical view to show that.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E100-A No.2 pp.733-737
Publication Date
2017/02/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E100.A.733
Type of Manuscript
LETTER
Category
Information Theory

Authors

Wanchun LI
  University of Electronic Science and Technology of China
Ting YUAN
  University of Electronic Science and Technology of China
Bin WANG
  University of Electronic Science and Technology of China
Qiu TANG
  University of Electronic Science and Technology of China
Yingxiang LI
  Chengdu University of Information Technology
Hongshu LIAO
  University of Electronic Science and Technology of China

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