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dc.contributor.authorBarshan, B.en_US
dc.date.accessioned2016-02-08T10:38:59Z
dc.date.available2016-02-08T10:38:59Z
dc.date.issued2000en_US
dc.identifier.issn0957-0233
dc.identifier.urihttp://hdl.handle.net/11693/25093
dc.description.abstractFour methods of range measurement for airborne ultrasonic systems - namely simple thresholding, curve-fitting, sliding-window, and correlation detection - are compared on the basis of bias error, standard deviation, total error, robustness to noise, and the difficulty/complexity of implementation. Whereas correlation detection is theoretically optimal, the other three methods can offer acceptable performance at much lower cost. Performances of all methods have been investigated as a function of target range, azimuth, and signal-to-noise ratio. Curve fitting, sliding window, and thresholding follow correlation detection in the order of decreasing complexity. Apart from correlation detection, minimum bias and total error is most consistently obtained with the curve-fitting method. On the other hand, the sliding-window method is always better than the thresholding and curve-fitting methods in terms of minimizing the standard deviation. The experimental results are in close agreement with the corresponding simulation results. Overall, the three simple and fast processing methods provide a variety of attractive compromises between measurement accuracy and system complexity. Although this paper concentrates on ultrasonic range measurement in air, the techniques described may also find application in underwater acoustics.en_US
dc.language.isoEnglishen_US
dc.source.titleMeasurement Science and Technologyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1088/0957-0233/11/1/307en_US
dc.subjectCorrelation detectionen_US
dc.subjectRange measurementen_US
dc.subjectSliding windowen_US
dc.subjectSonaren_US
dc.subjectTarget localization and identificationen_US
dc.subjectThresholdingen_US
dc.subjectTime-of-flight measurementen_US
dc.subjectUltrasonicsen_US
dc.subjectComputational complexityen_US
dc.subjectComputer simulationen_US
dc.subjectCorrelation methodsen_US
dc.subjectCurve fittingen_US
dc.subjectError analysisen_US
dc.subjectSignal to noise ratioen_US
dc.subjectSonaren_US
dc.subjectTime of flight measurementen_US
dc.subjectUltrasonic range measurementen_US
dc.subjectUltrasonic measurementen_US
dc.titleFast processing techniques for accurate ultrasonic range measurementsen_US
dc.typeArticleen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.citation.spage45en_US
dc.citation.epage50en_US
dc.citation.volumeNumber11en_US
dc.citation.issueNumber1en_US
dc.identifier.doi10.1088/0957-0233/11/1/307en_US
dc.publisherInstitute of Physics Publishingen_US


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