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Biosonar navigation above water I: estimating flight height
Journal of Neurophysiology, 2015Locomotion and foraging on the wing require precise navigation in more than just the horizontal plane. Navigation in three dimensions and, specifically, precise adjustment of flight height are essential for flying animals. Echolocating bats drink from water surfaces in flight, which requires an exceptionally precise vertical navigation.
Hoffmann, S. +6 more
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MCM trials with Biosonar system
Proceedings of Meetings on Acoustics, 2013In this paper we present the results of MCM trials using a Biosonar system mounted on the AUV (autonomous underwater vehicle) REMUS 100. The trials were run in Lochearnhead in Scotland. Two mine-like objects were put on the seafloor. The first one was a aluminium cylinder (150 cm long and 40 cm diameter) and the second object was a truncated cone ...
Yan Pailhas, Chris Capus, Keith Brown
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Why hipposiderid biosonar is worth studying
The Journal of the Acoustical Society of America, 2017Although the genus Hipposideros contains a diverse set of more than 70 species of echolocating bats, the biosonar system of this group has received far less attention than that of the related horseshoe bats (family Rhinolophidae) which share the same basic cf-fm biosonar.
Rolf Müller +4 more
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Biosonar Signal Processing Applications
1988Dolphins 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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Reconstruction of acoustic scenes in biosonar
The Journal of the Acoustical Society of America, 2018Biosonar mechanisms are highlighted by comparing acoustically reconstructed scenes derived from generalized methods with the performance of echolocating animals. Bioinspired computations replacing standard methods then offer a path towards understanding the animal’s solutions. Seemingly simple outdoor spaces present flying bats with complex scenes when
Chen Ming +3 more
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Tursiops Biosonar Detection in Noise
1980Biosonar 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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Classification of natural landmark with biosonar
The Journal of the Acoustical Society of America, 2004Echolocating bats can make nocturnal flights in acoustically cluttered environments with the use of echolocation. Their marvelous ability to evaluate natural targets in complete darkness provides us an opportunity to learn target detection, classification, and identification with similar biomimetic platforms.
Maosen Wang, Andreas Zell
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The acoustic world of bat biosonar
The Journal of the Acoustical Society of America, 2018Bats and toothed whales (odontocetes) have both independently evolved sophisticated biosonar systems. This raises the question how similar the functional principles of these systems are. Could, for example, insights gained from bats be assumed to hold for odontocetes or vice versa? Could both systems be lumped together as a single source of inspiration
Rolf Müller +3 more
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Biosonar Discrimination, Recognition, and Classification
1993One 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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Machine learning challenges in bat biosonar
The Journal of the Acoustical Society of America, 2019Many bat species thrive in complex natural environments where their biosonar pulses trigger echoes with complex, unpredictable waveforms. In most cases, it remains unknown how the bats obtain sensory information they need from such clutter echoes. Machine learning methods that can extract relationships from large data sets could have a transformative ...
Rolf Müller +3 more
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