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Indoor acoustic localization: a survey
2020
Human-Centric Computing and Information Sciences
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(HCI) devices [47, 70, 83, 85] . ...
In the second step, the target is located using those data. ...
For example, EchoLoc [9] employs a smartphone with two speakers to track a hand. ...
doi:10.1186/s13673-019-0207-4
fatcat:lueb6jrvqncytg2wzevf6naija
Signal processing applied to the dolphin-based sonar system
2003
Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492)
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The wet-end unit, constructed by ARL-UT, is integrated around the Analog Devices SP 21061 SHARC processor architecture. ...
The bottlenose dolphin has evolved a unique system of biosonar, or echolocation, that allows it to exploit a visually limited littoral niche. ...
The DBS projector and receivers are attached to a COTS pan-and-tilt unit that permits +/-170 0 of pan and +/-170 0 of tilt. ...
doi:10.1109/oceans.2003.178572
fatcat:kapzzop74nhotmzecofp6jvywm
Acoustic Sensors for Air and Surface Navigation Applications
2018
Sensors
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In particular, this paper focuses on echolocation, which is widely utilized in nature by certain mammals (e.g., cetaceans and bats). ...
Although acoustic sensors have been extensively adopted in various engineering applications, their use in navigation and guidance systems is yet to be fully exploited. ...
A.G. contributed to the echolocation error analysis and development of code for Figure 2 . He also contributed to the literature review, revision of manuscript and replies to reviewer comments. ...
doi:10.3390/s18020499
pmid:29414894
pmcid:PMC5855873
fatcat:ui2guh7p3jeltgygdmkzrdwnbu
Quantum Shape Effects
[article]
2021
arXiv
pre-print
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Mammals like bats and dolphins constantly use echolocation techniques to navigate and communicate. ...
Then, the number of vertices becomes N V = 8 cot(90/2) + 2 cot(270/2) + 7 cot(270/2) = −1.
Fig. 2 . 2 17 . ...
arXiv:2102.04332v1
fatcat:baidrmeikzgu3jetswbu4kelpm
Daniel R. Raichel: The Science and Applications of Acoustics
2001
Computer Music Journal
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Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. ...
The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they ...
On the other hand, neither an externally applied moment nor a shear force may exist at a free end of a vibrating bar. ...
doi:10.1162/comj.2001.25.4.92
fatcat:o3u27vcdpbbdtaqanqrerx2tii
High‐intensity, focused ultrasonic fields
1988
Journal of the Acoustical Society of America
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The basics of the measurement technique, using two-microphone probes or pressure-velocity probes, and the appropriate dedicated instrumentation or more general computer use, will be discussed. ...
The intensity technique was initially developed for sound power measurements but it can be used as a general tool for sound field investigations. ...
In this paper, three electronic measurement devices used with Apple II computers in dolphin echolocation experiments will be discussed. ...
doi:10.1121/1.2025494
fatcat:yhmkhlqhivbwnp2lxraret33iq
Device-free positioning using a ceiling-based visible light sensing system
2018
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Device-free positioning can be of use in many applications; for example, in a smart home, it would be useful for the lights in the bedroom to turn on once a person enters, and for it to turn off once they ...
These unique shadow patterns can be used in turn to estimate the position of the person. Using this setup, a low localization error of 2 feet is obtained. ...
Figure 6 .6: The circled dip is what the receiver uses to interpret whether or not a shadow is present, so the longer the dip, easier and more accurate the processing. a) receiver is 8 ft from the transmitter ...
doi:10.7282/t34b34h9
fatcat:37q3xahzjfddfi4jgppaypl5su
Symposia and Oral Abstracts
2007
Integrative and Comparative Biology
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Chronic Stress in Bridge-and Cave-roosting Brazilian Free-tailed Bats: Assessing Cortisol Response to Hormonal Challenges Over the past two decades, the Brazilian free-tailed bat (Tadarida brasiliensis ...
) has increasingly used bridges as roosts in the southern United States. ...
The COT during running did not differ when the subjects used plantigrade versus digitigrade foot posture. ...
doi:10.1093/icb/icm104
fatcat:uqdscbqihbeoxoo2unutfwtmdi
Real-time depth imaging
2012
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We focus on ToF imaging and the utilization of ToF cameras based on the photonic mixer device (PMD) principle. These cameras provide per pixel distance information in real-time. ...
Blind people orientate from the surrounding noise (passive) or even try to use human echolocation [117] (active). ...
On one hand, such examples are comprehensible due to the high occurrence in every day situations. On the other hand, nowadays depth sensing devices are already embedded in cars. ...
doi:10.14279/depositonce-3244
fatcat:rmfznmvmxreynjmuiebbhefnke
Program of the sixty-seventh annual convention of the American Psychological Association: September 3-9, 1959, Cincinnati, Ohio
1959
American Psychologist
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The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
Errors of egocentric localization and eye-hand co ordination are produced by placing prisms over the eyes of subjects. ...
Adaptation in either eye-hand coordination or egocentric localization requires that during the exposure the sequence of retinal stimulation be con- tingent upon self-produced body movement.
4:10. ...
doi:10.1037/h0046884
fatcat:2ww6qmzv2bfrvacpzhaqnuzgfy
Sounding the reef: comparative acoustemologies of underwater noise pollution
2020
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There is very little surface area to produce an echo so a dolphin passively echolocating might miss the structure. The solution: acoustic warning devices-also known as "pingers." ...
Marine biologists calibrate their instruments to pick up high-frequency sound because they assume that the orcas will hunt using echolocation. ...
doi:10.25903/4aa3-g206
fatcat:xfjq6hxvavbz7ahtl5mirdhvby
Ocean, platform, and signal processing effects on synthetic aperture sonar performance
1991
Journal of the Acoustical Society of America
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The ocean influence on SAS imagery is shown to depend on (1) the extent of spatial/temporal coherence which limits the useful aperture length that may be used for sharp imaging, and (2) the refraction ...
This model, the most extensive ever used for SAS simulations, has been verified by comparison to a SAS ocean experiment performed by others. ...
Sonar, meanwhile, had been routinely used for navigation and food-finding purposes by bats and cetaceans (whales) but was not used by man for echolocation until the early 1910s. ...
doi:10.1121/1.400746
fatcat:6357pltnarepbobpsu4b3ter6a
The Ancient History of the Internet
unpublished
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restrict the continued free use of these networks. ...
They will do so using devices ranging from next-generation wired and cellular telephones, radios and televisions to advanced fax machines, pagers, desktop and portable computers, hand-held information ...
fatcat:js2bpx3bl5buldsswkvzzfqqqe
Listening to Distances and Hearing Shapes:Inverse Problems in Room Acoustics and Beyond
2015
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Yet, somewhat surprisingly, in rooms one can do localization more accurately than in free-field if the room geometry is known [8, 175, 177, 61] . ...
We apply it to indoor localization using only a single omnidirectional sensor (which is impossible in free space), and how to localize in non-convex spaces. ...
In that case, it pays to use "sparse pseudoinverses" instead of the usual Moore-Penrose pseudoinverse. ...
doi:10.5075/epfl-thesis-6623
fatcat:lwh3yi6amzhqtej6qjqeur2nvu
Offshore
2020
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On his belt, the boxy device--the one he had used before--started beeping wildly. The weatherman looked between his soiled boots and Black, who was still bent over, hands on his knees. ...
"Jesus," he said, sitting down heavily on her cot. "He's alive." ...
doi:10.7282/t3-b94h-t982
fatcat:j4cvljnee5fwtg6l3fj5hzzy3u
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