The anti-bat strategy of ultrasound absorption: the wings of nocturnal moths (Bombycoidea: Saturniidae) absorb more ultrasound than the wings of diurnal moths (Chalcosiinae: Zygaenoidea: Zygaenidae)

Autor: Athanasios Ntelezos, Francesco Guarato, James F. C. Windmill

Publikováno v: Biology Open, Vol 6, Iss 1, Pp 109-117 (2017)

The selection pressure from echolocating bats has driven the development of a diverse range of anti-bat strategies in insects. For instance, several studies have proposed that the wings of some moths absorb a large portion of the sound energy contain

Externí odkaz: https://doaj.org/article/b6a0c9bd47b14af5b81aebe3cd6dd18b

Porpoise click classifier (PorCC): A high-accuracy classifier to study harbour porpoises (Phocoena phocoena) in the wild

Autor: Mel Cosentino, James F. C. Windmill, Jakob Tougaard, David Nairn, Joseph C. Jackson, Francesco Guarato

Publikováno v: Cosentino, M, Guarato, F, Tougaard, J, Nairn, D, Jackson, J C & Windmill, J F C 2019, ' Porpoise click classifier (PorCC) : A high-accuracy classifier to study harbour porpoises (Phocoena phocoena) in the wild ', Acoustical Society of America. Journal, vol. 145, no. 6, pp. 3427-3434 . https://doi.org/10.1121/1.5110908

Harbour porpoises are well-suited for passive acoustic monitoring (PAM) as they produce highly stereotyped narrow-band high-frequency (NBHF) echolocation clicks. PAM systems must be coupled with a classification algorithm to identify the signals of i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdb2c95abf9f6be3cc18346d26b21fd0
https://pubmed.ncbi.nlm.nih.gov/31255141

Radiation Properties of Truncated Cones to Enhance the Beam Patterns of Air-coupled Transducers

Autor: Anthony Gachagan, Francesco Guarato, James F. C. Windmill, Anthony J. Mulholland

Publikováno v: Physics Procedia. 70:163-166

Radiation properties of cones are used to steer energy from the side lobes toward the center of the beam pattern of an air-coupled source. Two structures of superposed truncated cones are designed and implemented in a finite element package to modify

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d23a69a4234658d26e4e95ed70abdac

Measured beam patterns of biomimetic receivers improve localisation performance of an ultrasonic sonar: Biomimetic receivers improve ultrasonic sonar localisation

Autor: Charlotte Strang-Moran, James F. C. Windmill, Francesco Guarato

Publikováno v: 2017 IEEE International Ultrasonics Symposium (IUS).

The Beam Based Method (BBM) is inspired by bat echolocation as a novel ultrasonic sonar. The method is designed for a system consisting of an emitter and two receivers with a directional beam pattern and was previously tested in simulation with ideal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::287453feb3cf2f88b9ce27348a416dbe
https://doi.org/10.1109/ultsym.2017.8091933

An investigation of acoustic beam patterns for the sonar localization problem using a beam based method

Autor: James F. C. Windmill, G. Harvey, Anthony Gachagan, Francesco Guarato

Publikováno v: The Journal of the Acoustical Society of America. 133:4044-4053

Target localization can be accomplished through an ultrasonic sonar system equipped with an emitter and two receivers. Time of flight of the sonar echoes allows the calculation of the distance of the target. The orientation can be estimated from know

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35feaf87cb85529849298f579efa8c50
https://doi.org/10.1121/1.4802831