Searched for: subject:"Noise"
(1 - 20 of 458)

Pages

document
Weemstra, C. (author), de Laat, J.I. (author), Verdel, A. (author), Smets, P. (author)
Instrumental timing and phase errors are a notorious problem in seismic data acquisition and processing. These can be frequency independent, for example due to clock drift, but may also be frequency dependent, for example due to imperfectly known instrument responses. A technique is presented that allows both types of errors to be recovered in a...
article 2021
document
MacGillyvray, A. (author), de Jong, C.A.F. (author)
Underwater sound mapping is increasingly being used as a tool for monitoring and managing noise pollution from shipping in the marine environment. Sound maps typically rely on tracking data from the Automated Information System (AIS), but information available from AIS is limited and not easily related to vessel noise emissions. Thus, robust...
article 2021
document
Braat-Eggen, E. (author), Reinten, J. (author), Hornikx, M. (author), Kohlrausch, A. (author)
Students can be disturbed by background noise while working in an open-plan study environment. To improve the acoustic quality of open-plan study environments a study was done on the influence of different sound scenarios on students working on a typical student task, “studying for an exam”. Three sound scenarios and a quiet reference sound...
article 2021
document
Wei, X. (author), Urbach, H.P. (author), van der Walle, P. (author), Coene, W.M.J. (author)
We present a parameter retrieval method which incorporates prior knowledge about the object into ptychography. The proposed method is applied to two applications: (1) parameter retrieval of small particles from Fourier ptychographic dark field measurements; (2) parameter retrieval of a rectangular structure with realspace ptychography. The...
article 2021
document
de Martin, L. (author), van Rossum, W. (author), Ribeiro, D. (author), Anitori, L. (author)
It is well known that noise-like waveforms have the inherent property of suppressing ambiguities due to their nonrepetitive nature, as opposed to the more classical linear frequency modulated (LFM) pulsed waveforms. This aperiodicity also improves the robustness against jammers, making these waveforms harder to detect and classify by an enemy....
article 2020
document
Mueller, W. (author), Steinle, S. (author), Pärkkä, J. (author), Parmes, E. (author), Liedes, H. (author), Kuijpers, E. (author), Pronk, A. (author), Sarigiannis, D. (author), Karakitsios, S. (author), Chapizanis, D. (author), Maggos, T. (author), Stamatelopoulou, A. (author), Wilkinson, P. (author), Milner, J. (author), Vardoulakis, S. (author), Loh, M. (author)
Background/Aim: The exposome includes urban greenspace, which may affect health via a complex set of pathways, including reducing exposure to particulate matter (PM) and noise. We assessed these pathways using indoor exposure monitoring data from the HEALS study in four European urban areas (Edinburgh, UK; Utrecht, Netherlands; Athens and...
article 2020
document
Isojunno, S. (author), Wensveen, P.J. (author), Lam, F.P.A. (author), Kvadsheim, P.H. (author), von Benda-Beckmann, A.M. (author), Lopez, L.M. Martín (author), Kleivane, L. (author), Siegal, E.M. (author), Miller, P.J.O. (author)
Anthropogenic noise sources range from intermittent to continuous, with seismic and navy sonar technology moving towards nearcontinuous transmissions. Continuous active sonar (CAS) may be used at a lower amplitude than traditional pulsed active sonar (PAS), but potentially with greater cumulative sound energy. We conducted at-sea experiments to...
article 2020
document
McQueen, A.D. (author), Suedel, B.C. (author), de Jong, C.A.F. (author), Thomsen, F. (author)
There is an increasing international focus to understand and quantify the potential ecological risks of low-frequency underwater sounds produced from anthropogenic activities (e.g., commercial shipping, dredging, construction, and offshore energy production). For dredge operations, a risk-based approach has been proposed for identifying,...
article 2020
document
Müller, R.A.J. (author), von Benda-Beckmann, A.M. (author), Halvorsen, M.B. (author), Ainslie, M.A. (author)
Regulations for underwater anthropogenic noise are typically formulated in terms of peak sound pressure, root-mean-square sound pressure, and (weighted or unweighted) sound exposure. Sound effect studies on humans and other terrestrial mammals suggest that in addition to these metrics, the impulsiveness of sound (often quantified by its kurtosis...
article 2020
document
Tajdari, F. (author), Berkhoff, A.P. (author), de Boer, A. (author)
This paper focuses on extensive numerical and experimental investigations of a thin sandwich acoustic source. Due to an energy inefficient actuation design, a thin sandwich acoustic source that was proposed in an early study is redesigned and reconstructed in the current research. The thin acoustic source in the present paper is actuated by long...
article 2020
document
Bottenheft, C. (author), Brouwer, A.M. (author), Stuldreher, I. (author), Groen, E. (author), van Erp, J. (author)
article 2020
document
Tajdari, F. (author), Berkhoff, A.P. (author), van der Zee, R.A.R. (author), de Boer, A. (author)
article 2020
document
Tajdari, F. (author), Berkhoff, A.P. (author), de Boer, A. (author)
This paper studies an acoustic source with a relatively small thickness and a high bending stiffness. The acoustic source operates in the low frequency, quasi-static regime. The focus of the current study is on the actuation part in order to design an appropriate excitation mechanism. A flexural mechanism is modeled in combination with a...
article 2020
document
Eledlebi, K. (author), Ruta, D. (author), Hildmann, H. (author), Saffre, F. (author), Alhammadi, Y. (author), Isakovic, A. (author)
When deploying a wireless sensor network (WSN) identifying optimal locations for the nodes is challenging, especially so if the environment is either (i) unknown or (ii) obstacle-rich. We proposes BISON (Bio-Inspired Self- Organizing Network), a variant of the Voronoi algorithm to address this challenge. Among the features of the approach are...
article 2020
document
Berkhoff, A. (author)
conference paper 2020
document
Kok, A.C.M. (author), van Kolfshoten, L. (author), Campbell, J.A. (author), von Benda-Beckmann, A.M. (author), Miller, P.J.O. (author), Slabbekoorn, H. (author), Visser, F. (author)
article 2020
document
Lodari, M. (author), Hendrickx, N.W. (author), Lawrie, W.I.L. (author), Hsiao, T.K. (author), Vandersypen, L.M.K. (author), Sammak, A. (author), Veldhorst, M. (author), Scappucci, G. (author)
conference paper 2020
document
Zheng, G. (author), Samkharadze, N. (author), Noordam, M.L. (author), Kalhor, N. (author), Brousse, D. (author), Sammak, A. (author), Scappucci, G. (author), Vandersypen, L.M.K. (author)
Silicon spin qubits are one of the leading platforms for quantum computation1,2. As with any qubit implementation, a crucial requirement is the ability to measure individual quantum states rapidly and with high fidelity. Since the signal from a single electron spin is minute, the different spin states are converted to different charge states3,4....
article 2019
document
Bijl, P. (author), Hogervorst, M.A. (author)
Image-based Electro-Optical system simulation including an end-to-end performance test is a powerful tool to characterize a camera system before it has been built. In particular, it can be used in the design phase to make an optimal trade-off between performance on the one hand and SWaPC (Size, Weight, Power and Cost) criteria on the other....
conference paper 2019
document
von Benda-Beckmann, A.M. (author), Wensveen, P.J. (author), Prior, M. (author), Ainslie, M.A. (author), Hansen, R.R. (author), Isojunno, S. (author), Lam, F.P.A. (author), Kvadsheim, P.H. (author), Miller, P.J.O. (author)
To understand the consequences of underwater noise exposure for cetaceans, there is a need for assessments of behavioural responses over increased spatial and temporal scales. Bottom-moored acoustic recorders and satellite tags provide such long-term and large spatial coverage of behaviour compared to short-duration acoustic-recording tags....
article 2019
Searched for: subject:"Noise"
(1 - 20 of 458)

Pages