Related Experiment Video
Updated: Jun 8, 2025

Measurement of the Directional Information Flow in fNIRS-Hyperscanning Data using the Partial Wavelet Transform Coherence Method
Published on: September 3, 2021
Ambient noise source characterization using spectral, coherence, and directionality estimates at Kongsfjorden
Sanjana M C1, Latha G1, Thirunavukkarasu A1
1Ministry of Earth Sciences, National Institute of Ocean Technology, Pallikaranai, Chennai 600100, Indiasanjana@niot.res.in; latha@niot.res.in; vathiru@niot.res.in.
Abstract:
Ambient noise measurements from an Arctic fjord during summer and winter are analyzed using spectral, coherence, and directionality estimates from a vertically separated pair of hydrophones. The primary noise sources attributed to wind, shipping, and ice activity are categorized and coherence is arrived at. Estimates of the noise field directionality in the vertical and its variation over time and between seasons are used to strengthen the analysis of the time-varying nature of noise sources. Source identification using such processing techniques serves as a valuable tool in passive acoustic monitoring systems for studying ice dynamics in glacierized fjords.
More Related Videos
08:25Combined Invasive Subcortical and Non-invasive Surface Neurophysiological Recordings for the Assessment of Cognitive and Emotional Functions in Humans
Published on: May 19, 2016
08:19Simultaneous Data Collection of fMRI and fNIRS Measurements Using a Whole-Head Optode Array and Short-Distance Channels
Published on: October 20, 2023
Related Concept Videos
Perceiving Loudness, Pitch, and Location
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Perception of Sound Waves
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
Difference from Background: Limit of Detection
The LOD indicates the presence or absence...
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations
Determination of Expected Frequency
Sampling Methods: Overview
In analytical chemistry, the choice of...