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MMSE estimation of arrival time with application to ultrasonic signals
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Luleå tekniska universitet.
Luleå tekniska universitet.
Luleå tekniska universitet.
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1993 (English)Report (Other academic)
Abstract [en]

This paper deals with arrival time estimation of a narrow-band signal disturbed by white gaussian noise. In order to estimate the distance between a transmitting source and a reflecting target an estimator, based on the criterion of minimum mean square error (MMSE), is investigated. The MMSE-estimator is implemented in an experimental ultrasound pulse-echo system, and results of comparative simulations between the MAP-estimator and the MMSE-estimator are given. The results are compared to the theoretical Weiss-Weinstein lower bound. As expected, the MMSE-estimator has smaller mean square error than the MAP-estimator. For high SNRs, however, the mean square error obtained by the MAP-estimator manages to approach that of the MMSE-estimator. Other di®erences between the two estimators are revealed in additional experiments in which the range estimates are used to generate 3-dimensional surface pictures.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 1993. , 15 p.
Research report / Luleå University of Technology1 jan 1974 → 31 dec 1996, ISSN 0347-0881 ; 1993:15
Research subject
Signal Processing
URN: urn:nbn:se:ltu:diva-25249Local ID: e61a51a0-df04-11dc-99e3-000ea68e967bOAI: diva2:998301
Godkänd; 1993; 20080219 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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Beek, Jaap van de
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