Results 91 to 100 of about 5,103,302 (259)

Aversiveness of sound in marine mammals : psycho-physiological basis, behavioural correlates and potential applications [PDF]

open access: yes, 2010
Understanding what psycho-physiological and behavioural factors influence aversiveness of sound in marine mammals is important for conservation and practical applications.
Götz, Thomas
core   +2 more sources

Scalable low‐cost seabed landers: the missing link for sustained, integrated, long‐term observations in dynamic shallow seas

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Seabed landers, when equipped with a range of biotic and abiotic sensors, offer a non‐invasive and cost‐effective solution for ecosystem‐scale monitoring of Essential Biodiversity Variables (EBVs) and Essential Ocean Variables (EOVs) in dynamic shallow seas.
Arienne Calonge   +7 more
wiley   +1 more source

Dual-Transformer Feature Enhancement for Infrared Small-Dim Target Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Infrared small-dim target detection constitutes a critical technology with broad applicability across both remote sensing and surveillance. Despite recent remarkable progress, deep learning-based methods still struggle with weak signal strength, low ...
Guoliang Hu   +5 more
doaj   +1 more source

Advanced signal processing techniques for underwater acoustic transmission using steerable transducer arrays [PDF]

open access: yes
The main objective of this research is to design and implement an eight-hydrophone transmitter array for generating bipolar acoustic pulses mimicking those produced by cosmogenic neutrino interaction in sea water.
Ooppakaew, Wichian
core  

An environmental equalizer for underwater acoustic communications Tested at Hydralab III [PDF]

open access: yes, 2010
It is known that small changes in source and receiver locations can cause significant changes in underwater acoustic channel impulse responses. At HYDRALAB III an underwater acoustic experiment was conducted to show that a source depth-shift causes a ...
Silva, A.   +4 more
core  

Multi‐Platform Deployments of Low‐Cost Devices for Cetacean Passive Acoustic Monitoring

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Recent advances in affordable, user‐friendly devices offer new opportunities to overcome cost constraints of underwater passive acoustic monitoring (PAM) and expand acoustic data collection. In this study, we deployed low‐cost acoustic recorders and underwater cameras across a range of platforms in the Western Mediterranean, including fishing gear ...
Greta Jankauskaite   +8 more
wiley   +1 more source

Convolutional Bidirectional Long Short-Term Memory for Deception Detection With Acoustic Features

open access: yesIEEE Access, 2018
Despite the widespread use of multi-physiological parameters for deception detection, they have been severely restricted due to the high degree of cooperation in contacting-detection.
Yue Xie   +4 more
doaj   +1 more source

Arrival-based equalizer for underwater communication systems

open access: yes, 2012
Dissertação de Mestrado, Engenharia Electrónica e Telecomunicações, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2012One of the challenges in the present underwater acoustic communication systems is to combat the underwater channel e ects
Siddiqui, Salman Ijaz
core   +1 more source

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