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
3608
Mistry, Nikhil
9337a38c-86fb-40d5-8413-efc8c23e5034
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Tim
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
May 2017
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), .
(doi:10.1121/1.4987725).
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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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Published date: May 2017
Keywords:
Agroacoustics, Chirping, Biosonar, Sonar
Identifiers
Local EPrints ID: 416020
URI: http://eprints.soton.ac.uk/id/eprint/416020
ISSN: 0001-4966
PURE UUID: 19ce7716-9e45-45c8-b5d5-8ab458bee8fa
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Date deposited: 30 Nov 2017 17:30
Last modified: 16 Mar 2024 02:45
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Author:
Nikhil Mistry
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