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  5. Robust High Accuracy Ultrasonic Range Measurement System
 
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Robust High Accuracy Ultrasonic Range Measurement System

Author(s)
Saad, Mohamed M.  
Bleakley, Chris J.  
Dobson, Simon  
Uri
http://hdl.handle.net/10197/3967
Date Issued
2011-10
Date Available
2012-12-18T16:49:11Z
Abstract
This paper presents a novel method for ultrasonic range estimation. The method uses a wideband frequency-hop spread spectrum ultrasonic signal to increase robustness to noise and reverberation. The method applies cross-correlation with earliest peak search and a novel minimum variance search technique to correct the error in the cross-correlation time-of-flight estimate to within one wavelength of the carrier before applying a phase-shift technique for subwavelength range refinement. The method can be implemented digitally in software and only requires low-cost hardware for signal transmission and acquisition. Experimental results show an accuracy of better than 0.5 mm in a typical office environment.
Type of Material
Journal Article
Publisher
IEEE
Journal
IEEE Transactions On Instrumentation And Measurement
Volume
60
Issue
10
Start Page
3334
End Page
3341
Copyright (Published Version)
2011 IEEE
Subjects

Cross-correlation

Frequency-hop spread ...

Phase shift

Range estimation

Ultrasonic

Subject – LCSH
Signal processing
Frequencies of oscillating systems--Measurement
Ultrasonic waves
DOI
10.1109/TIM.2011.2128950
Language
English
Status of Item
Not peer reviewed
ISSN
0018-9456
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
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saad_bleakley_dobson_2011.pdf

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9.32 MB

Format

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Checksum (MD5)

65c259d0a0f7d886bc617af0f0315ebe

Owning collection
Computer Science Research Collection

Item descriptive metadata is released under a CC-0 (public domain) license: https://creativecommons.org/public-domain/cc0/.
All other content is subject to copyright.

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