Zobrazeno 1 - 10
of 68
pro vyhledávání: '"David E. Hannay"'
Autor:
Alexander O. MacGillivray, Laurie M. Ainsworth, Joanna Zhao, Joshua N. Dolman, David E. Hannay, Héloïse Frouin-Mouy, Krista B. Trounce, Derek A. White
Publikováno v:
The Journal of the Acoustical Society of America. 152:1547-1563
Measurements of the source levels of 9880 passes of 3188 different large commercial ships from the Enhancing Cetacean Habitat and Observation (ECHO) program database were used to investigate the dependencies of vessel underwater noise emissions on se
Publikováno v:
IEEE Journal of Oceanic Engineering. 46:1302-1312
Publikováno v:
IEEE Journal of Oceanic Engineering. 46:1057-1067
The problem of estimating bearings of impulsive wideband acoustic signals produced by vocalizing animals and received by a compact array of synchronized sensors is addressed. The accuracy provided by the maximum-likelihood (ML), the beamformer (BF),
Publikováno v:
The Journal of the Acoustical Society of America. 148:278-291
The problem of estimating spatial distribution and density of vocalizing marine animals is addressed. The proposed solution is based on using a fixed compact array of synchronized hydrophones and statistically optimal detection and estimation algorit
Publikováno v:
IEEE Journal of Oceanic Engineering. 45:1091-1098
The problem of passive acoustic estimating the position of a source using a network of synchronized underwater compact arrays is considered. Maximum-likelihood estimators using angle of arrival (AOA), time difference of arrival (TDOA), as well as a c
Publikováno v:
IEEE Journal of Oceanic Engineering. 44:1228-1239
In this paper, we present the results of a comprehensive acoustic monitoring and modeling study of the composite underwater noise footprint of an exploration drilling project in shallow waters (46 m) in the northeastern Chukchi Sea. Measured acoustic
Publikováno v:
The Journal of the Acoustical Society of America. 146:340-351
During 2017, the Vancouver Fraser Port Authority's Enhancing Cetacean Habitat and Observation program carried out a two-month voluntary vessel slowdown trial to determine whether slowing to 11 knots was an effective method for reducing underwater rad
Autor:
Michael A. Ainslie, S. Bruce Martin, Krista B. Trounce, David E. Hannay, Justin M. Eickmeier, Terry J. Deveau, Klaus Lucke, Alexander O. MacGillivray, Veronique Nolet, Pablo Borys
Publikováno v:
Marine Pollution Bulletin. 174:113124
The habitat of the endangered southern resident killer whale (SRKW) overlaps major international shipping lanes near the Port of Vancouver, British Columbia. Shipping is a dominant source of underwater noise, which can hinder SRKW key life functions.
Publikováno v:
IEEE Journal of Oceanic Engineering. 43:1134-1142
Compact arrays of acoustic sensors can provide bearing measurements of detected sounds. An important application for compact arrays is estimating the motion parameters of sources. This work considers the problem of bearings-only estimating of the pos
Publikováno v:
The Journal of the Acoustical Society of America. 144:115-123
This paper characterizes underwater sound levels produced by three drilling units during offshore exploration drilling at three sites in the Beaufort and Chukchi seas. Received levels and spectra are reported as functions of distance during drilling