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Time of arrival difference estimation for narrow band high frequency echolocation clicks
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dc.contributor.author | Gillespie, Douglas | |
dc.contributor.author | Macaulay, Jamie | |
dc.date.accessioned | 2020-04-22T23:33:31Z | |
dc.date.available | 2020-04-22T23:33:31Z | |
dc.date.issued | 2019-10 | |
dc.identifier | 264468242 | |
dc.identifier | 5e63b8b2-aa61-4457-8570-1b0c521f2b8b | |
dc.identifier | 85074172747 | |
dc.identifier | 31671977 | |
dc.identifier | 000506814200013 | |
dc.identifier.citation | Gillespie , D & Macaulay , J 2019 , ' Time of arrival difference estimation for narrow band high frequency echolocation clicks ' , Journal of the Acoustical Society of America , vol. 146 , no. 4 , pp. EL387-EL392 . https://doi.org/10.1121/1.5129678 | en |
dc.identifier.issn | 0001-4966 | |
dc.identifier.other | ORCID: /0000-0001-9628-157X/work/66398335 | |
dc.identifier.uri | https://hdl.handle.net/10023/19843 | |
dc.description | Funding: Scottish Government as part of the Marine Mammal Scientific Research Program MMSS/002/15; Natural Environment Research Council, Grant No. NE/R014639/1. | en |
dc.description.abstract | Algorithms are presented for the accurate time of arrival difference estimation of high frequency narrow band echolocation clicks from Harbor Porpoise. These clicks typically have a center frequency of around 130 kHz (wavelength ∼1.2 cm) and duration of <0.1 ms. When using hydrophones spaced centimeters apart, spatial aliasing can cause large errors on inter-hydrophone timing measurements due to the incorrect peak in the cross-correlation function of two signals being selected. It is shown that at sample rates of less than about 6 times the fundamental frequency, the incorrect correlation peak will be selected in 55% of measurements leading to large errors in time of arrival estimates. For clicks with a SNR > 10 dB these errors can be reduced by over two orders of magnitude through a combination of up-sampling the data and parabolic interpolation of peaks in the cross-correlation functions. | |
dc.format.extent | 7 | |
dc.format.extent | 1062815 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of the Acoustical Society of America | en |
dc.subject | GC Oceanography | en |
dc.subject | QH301 Biology | en |
dc.subject | Arts and Humanities (miscellaneous) | en |
dc.subject | Acoustics and Ultrasonics | en |
dc.subject | NDAS | en |
dc.subject.lcc | GC | en |
dc.subject.lcc | QH301 | en |
dc.title | Time of arrival difference estimation for narrow band high frequency echolocation clicks | en |
dc.type | Journal article | en |
dc.contributor.sponsor | NERC | en |
dc.contributor.institution | University of St Andrews. School of Biology | en |
dc.contributor.institution | University of St Andrews. Sea Mammal Research Unit | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. Sound Tags Group | en |
dc.contributor.institution | University of St Andrews. Bioacoustics group | en |
dc.contributor.institution | University of St Andrews. Marine Alliance for Science & Technology Scotland | en |
dc.identifier.doi | 10.1121/1.5129678 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2020-04-23 | |
dc.identifier.grantnumber | NE/R014639/1 | en |
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