Estimate the Unknown Environment with Biosonar Echoes—A Simulation Study [PDF]
Sensors, 2021 Unmanned aerial vehicles (UAVs) have shown great potential in various applications such as surveillance, search and rescue. To perform safe and efficient navigation, it is vitally important for a UAV to evaluate the environment accurately and promptly ...
Muhammad Hassan Tanveer, Antony Thomas
exaly +5 more sources
A comprehensive computational model of animal biosonar signal processing. [PDF]
PLoS Computational Biology, 2021 Computational models of animal biosonar seek to identify critical aspects of echo processing responsible for the superior, real-time performance of echolocating bats and dolphins in target tracking and clutter rejection.
Chen Ming +3 more
doaj +3 more sources
Echolocating toothed whales use ultra-fast echo-kinetic responses to track evasive prey [PDF]
eLife, 2021 Visual predators rely on fast-acting optokinetic responses to track and capture agile prey. Most toothed whales, however, rely on echolocation for hunting and have converged on biosonar clicking rates reaching 500/s during prey pursuits.
Heather Vance +6 more
doaj +2 more sources
A simulation framework for bio-inspired sonar sensing with Unmanned Aerial Vehicles. [PDF]
PLoS ONE, 2020 We introduce a unified simulation framework that generates natural sensing environments and produces biosonar echoes under various sensing scenarios. This framework produces rich sensory data with environmental information completely known, thus can be ...
M Hassan Tanveer +6 more
doaj +2 more sources
The Distinctive Forehead Cleft of the Risso’s Dolphin (Grampus griseus) Hardly Affects Biosonar Beam Formation [PDF]
Animals, 2022 The Risso’s dolphin (Grampus griseus) has a distinctive vertical crease (or cleft) along the anterior surface of the forehead. Previous studies have speculated that the cleft may contribute to biosonar beam formation.
Chong Wei +4 more
doaj +2 more sources
Temporal and spatial biosonar activity of the recently established uppermost Yangtze finless porpoise population downstream of the Gezhouba Dam: Correlation with hydropower cascade development, shipping, hydrological regime, and light intensity [PDF]
Ecology and EvolutionNumerous dams disrupt freshwater animals. The uppermost population of the critically endangered Yangtze finless porpoise has been newly formed below the Gezhouba Dam, however, information regarding the local porpoise is scarce.
Zhi‐Tao Wang +4 more
doaj +2 more sources
Increased Yangtze finless porpoise presence in urban Wuhan waters of the Yangtze River during fishing closures [PDF]
Ecology and EvolutionWuhan, a highly urbanized and rapidly growing region within China's Yangtze Economic Zone, has historically been identified as a gap area for the critically endangered Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) based on ...
Zhi‐Tao Wang +4 more
doaj +2 more sources
Biosonar discrimination of fine surface textures by echolocating free-tailed bats
Frontiers in Ecology and Evolution, 2022 Echolocating bats are able to discriminate between different surface textures based on the spectral properties of returning echoes. This capability is likely to be important for recognizing prey and for finding suitably perching sites along smooth cave ...
Silvio Macias
exaly +3 more sources
Object localization using a biosonar beam: how opening your mouth improves localization [PDF]
Royal Society Open Science, 2015 Determining the location of a sound source is crucial for survival. Both predators and prey usually produce sound while moving, revealing valuable information about their presence and location.
Yossi Yovel
exaly +2 more sources
Simulated target search by bats using biomimetic SCAT biosonar model [PDF]
Frontiers in Computational NeuroscienceEcholocating big brown bats broadcast short, wideband ultrasonic FM pulses for foraging and navigation. These broadcasts contain frequencies from 100 to 20 kHz (wavelengths 0.34–1.7 cm).
James A. Simmons +7 more
doaj +2 more sources