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Efficacy of up and down-chirps for two-pulse sonar techniques

Efficacy of up and down-chirps for two-pulse sonar techniques
Efficacy of up and down-chirps for two-pulse sonar techniques
Twin-Inverted Pulse Sonar (TWIPS) and Biased Pulse Summation Sonar (BiaPSS) were inspired by a video of dolphins using bubble nets to hunt. There are a number of animals that have been observed to use the chirp (a sweep in sine waves of shifting frequency) in echolocation. This talk will present the difference in efficacy of the sonar techniques, mentioned above, when using upwards and downwards sweeping chirps as sonar signals. These techniques have been simulated and experimentally tested with a number of bubble size distributions (BSD). This includes simulations using the results of BSD measurements by Farmer and Vagle (1989). Further, another two-pulse technique will be outlined, proposed as a means to overcome the limitation on detection range, owing to the inter-pulse delay in TWIPS and BiaPSS.
Agroacoustics, Chirping, Biosonar, Sonar
0001-4966
3608
Mistry, Nikhil
9337a38c-86fb-40d5-8413-efc8c23e5034
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Tim
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Mistry, Nikhil
9337a38c-86fb-40d5-8413-efc8c23e5034
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Tim
3e5262ce-1d7d-42eb-b013-fcc5c286bbae

Mistry, Nikhil, White, Paul and Leighton, Tim (2017) Efficacy of up and down-chirps for two-pulse sonar techniques. Journal of the Acoustical Society of America, 141 (5), 3608. (doi:10.1121/1.4987725).

Record type: Meeting abstract

Abstract

Twin-Inverted Pulse Sonar (TWIPS) and Biased Pulse Summation Sonar (BiaPSS) were inspired by a video of dolphins using bubble nets to hunt. There are a number of animals that have been observed to use the chirp (a sweep in sine waves of shifting frequency) in echolocation. This talk will present the difference in efficacy of the sonar techniques, mentioned above, when using upwards and downwards sweeping chirps as sonar signals. These techniques have been simulated and experimentally tested with a number of bubble size distributions (BSD). This includes simulations using the results of BSD measurements by Farmer and Vagle (1989). Further, another two-pulse technique will be outlined, proposed as a means to overcome the limitation on detection range, owing to the inter-pulse delay in TWIPS and BiaPSS.

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More information

Published date: May 2017
Keywords: Agroacoustics, Chirping, Biosonar, Sonar

Identifiers

Local EPrints ID: 416020
URI: http://eprints.soton.ac.uk/id/eprint/416020
DOI: doi:10.1121/1.4987725
ISSN: 0001-4966
PURE UUID: 19ce7716-9e45-45c8-b5d5-8ab458bee8fa
ORCID for Nikhil Mistry: ORCID iD orcid.org/0000-0001-7567-4390
ORCID for Paul White: ORCID iD orcid.org/0000-0002-4787-8713
ORCID for Tim Leighton: ORCID iD orcid.org/0000-0002-1649-8750

Catalogue record

Date deposited: 30 Nov 2017 17:30
Last modified: 14 Mar 2019 01:54

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Author: Nikhil Mistry ORCID iD
Author: Paul White ORCID iD
Author: Tim Leighton ORCID iD

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