Results 11 to 20 of about 361,928 (300)

Open ocean ambient noise data in the frequency band of 100 Hz–50 kHz from the Pacific Ocean [PDF]

open access: yesJASA Express Letters, 2023
Bubbles from wind generated breaking surface waves are the dominant ambient noise source [Dean and Stokes, Nature 418, 839–844 (2002)]. With ambient noise data collected in the open ocean between 100 Hz and 50 kHz from 1999 to 2022, the ambient noise ...
Jie Yang   +3 more
doaj   +1 more source

Detecting and Correlating Aircraft Noise Events below Ambient Noise Levels Using OpenSky Tracking Data

open access: yesProceedings, 2020
Noise annoyance due to aircraft operations extends well beyond the 55 Lden noise contours as calculated according to the Environmental Noise Directive (END).
Luc Dekoninck
doaj   +1 more source

A single antenna ambient noise cancellation method for in-situ radiated EMI measurements in the time-domain [PDF]

open access: yes, 2016
This paper presents a single antenna ambient noise cancellation method for in-situ radiated emissions measurements performed using an entirely time-domain approach and the sliding window Empirical Mode Decomposition.
Azpúrua Auyanet, Marco Aurelio   +2 more
core   +1 more source

Polarized Earth's ambient microseismic noise [PDF]

open access: yesGeochem. Geophys. Geosyst, 2011
Peer ...
Schimmel, M.   +3 more
openaire   +3 more sources

A Complexity-Based Approach for the Detection of Weak Signals in Ocean Ambient Noise

open access: yesEntropy, 2016
There are numerous studies showing that there is a constant increase in the ocean ambient noise level and the ever-growing demand for developing algorithms for detecting weak signals in ambient noise.
Shashidhar Siddagangaiah   +6 more
doaj   +1 more source

Shear-Wave Tomography Using Ocean Ambient Noise with Interference

open access: yesRemote Sensing, 2020
Ambient noise carries abundant subsurface structure information and attracts ever-increasing attention in the past decades. However, there are lots of interference factors in the ambient noise in the real world, making the noise difficult to be utilized ...
Guoli Wu   +3 more
doaj   +1 more source

Ambient Noise Tomography for Coral Islands

open access: yesEngineering, 2023
As valuable land in the ocean, coral islands are not only important bases for making use of marine resources and protecting marine rights and interests, but also important for breakthrough research in many fields of earth science.
Shaohong Xia   +2 more
doaj   +1 more source

Passive Communication with Ambient Noise [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2021
Motivated by applications to wireless communications, this paper addresses the propagation of waves transmitted by ambient noise sources and interacting with metamaterials. We discuss a generalized Helmholtz-Kirchhoff identity that is valid in dispersive media and we characterize the statistical properties of the empirical cross spectral density of the
openaire   +4 more sources

The Alpha stable distribution in ocean ambient noise modelling [PDF]

open access: yesMATEC Web of Conferences, 2019
In view of the non-Gaussian of ocean ambient noise, the  stable distribution is applied to the statistical modelling. Firstly, the one-to-one correspondence between the four parameters of stable distribution and the sample mean, variance, skewness and ...
Song Guoli, Guo Xinyi, Ma Li
doaj   +1 more source

Species Recognition Is Constrained by Chorus Noise, but Not Inconsistency in Signal Production, in Cope’s Gray Treefrog (Hyla chrysoscelis)

open access: yesFrontiers in Ecology and Evolution, 2020
Optimal mate choice based on the assessment of communication signals can be constrained by multiple sources of noise. One well-known impediment to acoustically guided mating decisions is the ambient noise created by multiple signaling individuals in ...
Jessie C. Tanner   +2 more
doaj   +1 more source

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