Results 151 to 160 of about 1,345 (186)

Eigenbeam analysis of the diversity in bat biosonar beampatterns

The Journal of the Acoustical Society of America, 2015
A quantitative analysis of the interspecific variability in bat biosonar beampatterns has been carried out on 267 numerical predictions of emission and reception beampatterns from 98 different species. Since these beampatterns did not share a common orientation, an alignment was necessary to analyze the variability in the shape of the patterns.
Philip, Caspers, Rolf, Müller
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Localization with Biosonar Signals in Bats

1983
Bats use a kind of biological sonar, called echolocation, for perception of objects in the environment. They belong to the mammalian order Chiroptera (“wing-handed”), and echolocating bats comprise the suborder Microchiroptera (“little” bats), which contains about 700 living species. About 550 of these species are insectivorous, capturing their prey in
James A. Simmons, Shelley A. Kick, Beatrice D. Lawrence   +2 more
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A deterministic compressive sensing model for bat biosonar

The Journal of the Acoustical Society of America, 2012
The big brown bat (Eptesicus fuscus) uses frequency modulated (FM) echolocation calls to accurately estimate range and resolve closely spaced objects in clutter and noise. They resolve glints spaced down to 2 μs in time delay which surpasses what traditional signal processing techniques can achieve using the same echolocation call.
David A, Hague, John R, Buck, Igal, Bilik   +2 more
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Biosonar and Sound Localization in Dolphins

2016
Abstract Toothed whales and dolphins, odontocete cetaceans, produce very loud biosonar sounds in order to navigate and to locate and catch their prey of fish and squid. Underwater biosonar was not discovered until after 1950, but the initial experiments demonstrated a unique sensory modality that could find small targets far away and ...
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Biosonar Signal Processing Applications

1988
Dolphins have a sophisticated echolocation, or sonar, system that is well adapted to their environment. Given that it serves the animal well, one might ask how the dolphin sonar compares to man made sonars, and if there is anything useful one might apply from knowledge of the dolphin's echolocation system. In this paper we will compare the capabilities
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Tursiops Biosonar Detection in Noise

1980
Biosonar detection experiments conducted in the ocean are confounded as the range from the animal to the target is increased because added interference, such as fish schools, occlude the “field of view”. This experiment was designed to test deduction performance as a function of noise at a fixed range of 16.5 meters, thus reducing the range variability
Ralph H. Penner, James Kadane
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Biosonar Discrimination, Recognition, and Classification

1993
One of the outstanding characteristics of the dolphin sonar system which distinguishes it from any man-made sonar is the ability to make fine distinctions in the features or properties of targets. This ability has amazed and sparked the interest of many involved in the development and use of active sonar systems.
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Production of Biosonar Signals: Structure and Form

2014
Even though they live in quite different habitats, many bats, a few birds, and a number of marine mammals, including dolphins, rely on biosonar for navigation and foraging for food. Despite the fact that bats are aerial echolocators, whereas dolphins use underwater sonar, both groups depend on their sonar signals to detect, discriminate, locate, track,
Whitlow W. L. Au, Roderick A. Suthers
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Interior Decorating, and: Biosonar Dawn

Colorado Review
Abstract: Two poems that explore the dark edges of social and domestic lives, and the delicate nature of even strong bonds of community and relationships.
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Biosonar

2022
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