Cramér-Rao lower bounds for the time delay estimation of UWB signals

J. Zhang; R. A. Kennedy; T. D. Abhayapala

doi:10.1109/icc.2004.1313180

Cramér-Rao lower bounds for the time delay estimation of UWB signals

J. Zhang^*, R. A. Kennedy, T. D. Abhayapala

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

45 Citations (Scopus)

Abstract

In this paper, we present the Cramér-Rao lower bounds (CRLBs) for the time delay estimation of UWB signals which could be tight lower bounds for the theoretical performance limits of UWB synchronizers. The CRLBs are investigated for both single pulse systems and time hopping systems in AWGN and multipath channels. Insights are given into the relationship between CRLBs for different Gaussian monocycles. It is found that larger number of multipath signals implies higher CRLBs and inferior performance of synchronizers, and multipath interference on CRLBs can not be eliminated completely except in very special cases. As every estimate of time delay could not be perfect, the least influence of the synchronization error on the performance of receivers is quantified.

Original language	English
Pages (from-to)	3424-3428
Number of pages	5
Journal	Conference Record - International Conference on Communications
Volume	6
DOIs	https://doi.org/10.1109/icc.2004.1313180
Publication status	Published - 2004
Event	2004 IEEE International Conference on Communications - Paris, France Duration: 20 Jun 2004 → 24 Jun 2004

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title = "Cram{\'e}r-Rao lower bounds for the time delay estimation of UWB signals",

abstract = "In this paper, we present the Cram{\'e}r-Rao lower bounds (CRLBs) for the time delay estimation of UWB signals which could be tight lower bounds for the theoretical performance limits of UWB synchronizers. The CRLBs are investigated for both single pulse systems and time hopping systems in AWGN and multipath channels. Insights are given into the relationship between CRLBs for different Gaussian monocycles. It is found that larger number of multipath signals implies higher CRLBs and inferior performance of synchronizers, and multipath interference on CRLBs can not be eliminated completely except in very special cases. As every estimate of time delay could not be perfect, the least influence of the synchronization error on the performance of receivers is quantified.",

author = "J. Zhang and Kennedy, {R. A.} and Abhayapala, {T. D.}",

year = "2004",

doi = "10.1109/icc.2004.1313180",

language = "English",

volume = "6",

pages = "3424--3428",

journal = "Conference Record - International Conference on Communications",

issn = "0536-1486",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "2004 IEEE International Conference on Communications ; Conference date: 20-06-2004 Through 24-06-2004",

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TY - JOUR

T1 - Cramér-Rao lower bounds for the time delay estimation of UWB signals

AU - Zhang, J.

AU - Kennedy, R. A.

AU - Abhayapala, T. D.

PY - 2004

Y1 - 2004

N2 - In this paper, we present the Cramér-Rao lower bounds (CRLBs) for the time delay estimation of UWB signals which could be tight lower bounds for the theoretical performance limits of UWB synchronizers. The CRLBs are investigated for both single pulse systems and time hopping systems in AWGN and multipath channels. Insights are given into the relationship between CRLBs for different Gaussian monocycles. It is found that larger number of multipath signals implies higher CRLBs and inferior performance of synchronizers, and multipath interference on CRLBs can not be eliminated completely except in very special cases. As every estimate of time delay could not be perfect, the least influence of the synchronization error on the performance of receivers is quantified.

AB - In this paper, we present the Cramér-Rao lower bounds (CRLBs) for the time delay estimation of UWB signals which could be tight lower bounds for the theoretical performance limits of UWB synchronizers. The CRLBs are investigated for both single pulse systems and time hopping systems in AWGN and multipath channels. Insights are given into the relationship between CRLBs for different Gaussian monocycles. It is found that larger number of multipath signals implies higher CRLBs and inferior performance of synchronizers, and multipath interference on CRLBs can not be eliminated completely except in very special cases. As every estimate of time delay could not be perfect, the least influence of the synchronization error on the performance of receivers is quantified.

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U2 - 10.1109/icc.2004.1313180

DO - 10.1109/icc.2004.1313180

M3 - Conference article

AN - SCOPUS:4143124612

SN - 0536-1486

VL - 6

SP - 3424

EP - 3428

JO - Conference Record - International Conference on Communications

JF - Conference Record - International Conference on Communications

T2 - 2004 IEEE International Conference on Communications

Y2 - 20 June 2004 through 24 June 2004

ER -

Cramér-Rao lower bounds for the time delay estimation of UWB signals

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