NDLI: Cramer-Rao bound for TOA estimations in UWB positioning systems

Content Provider	IEEE Xplore Digital Library
Author	Kaiser, T. Sieskul, B.T.
Copyright Year	2005
Description	Author affiliation: Fak. fur Ingenieurwissenschaften, Duisburg Univ., Germany (Kaiser, T.; Sieskul, B.T.)
Abstract	This paper deals with time delay estimation for a UWB positioning system. We consider the a priori model in which the distributions of path gain and the desired time delay are known. Joint probability density functions for both parameters are cast into explicit form. Then, we address parameter estimations based on maximum likelihood as well as maximum a posteriori. The Fisher information matrix (FIM) of the ordinary Cramer-Rao bound (CRB) is available from maximum likelihood criterion. For three possible cases of a priori knowledge, the inherent accuracy are provided by a posteriori CRBs, which can be derived from three possible assumptions. All theoretical results are unconditioned on any specification of UWB pulse and hence are plausible to extend to further performance analysis.
Starting Page	408
Ending Page	413
File Size	258395
Page Count	6
File Format	PDF
ISBN	078039397X
DOI	10.1109/ICU.2005.1570022
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-05
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Fading Maximum likelihood estimation Parameter estimation Delay effects Measurement standards Delay estimation Receivers Probability density function Performance analysis
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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