Results 31 to 40 of about 96,107 (273)
Seismic and Newtonian Noise in the GW Detectors
Galaxies, 2022 Gravitational wave detectors aim to measure relative length variations of the order of ΔL/L≃10−21, or less. Thus, any mechanism that is able to reproduce such a tiny variation can, in principle, threaten the sensitivity of these instruments, representing
Lucia Trozzo, Francesca Badaracco
doaj +1 more source
A Semi-classical calculus of correlations [PDF]
, 2011 The method of passive imaging in seismology has been developped recently in order to image the earth crust from recordings of the seismic noise. This method is founded on the computation of correlations of the seismic noise.
Campillo, Michel +3 more
core +6 more sources
Seismic noise between 0.003 Hz and 1.0 Hz and its classification
Progress in Earth and Planetary Science, 2023 It is now established that the primary microseism, the secondary microseisms, and the hum are the three main components of seismic noise in the frequency band from about 0.003 Hz to 1.0 Hz. Monthly averages of seismic noise are dominated by these signals
Toshiro Tanimoto, Aaron Anderson
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, 2020 The cancellation of noise from terrestrial gravity fluctuations, also known as Newtonian noise (NN), in gravitational-wave detectors is a formidable challenge. Gravity fluctuations result from density perturbations associated with environmental fields, e.
Badaracco, F +11 more
core +1 more source
Seismic Interferometry from Correlated Noise Sources [PDF]
Remote Sensing, 2021 It is a well-established principle that cross-correlating seismic observations at different receiver locations can yield estimates of band-limited inter-receiver Green’s functions. This principle, known as Green’s function retrieval or seismic interferometry, is a powerful technique that can transform noise into signals which enable remote ...
Daniella Ayala +2 more
openaire +4 more sources
OSG-057 Superconducting Gravimeter Noise Levels in Lhasa (China)
Terrestrial, Atmospheric and Oceanic Sciences, 2016 This research tests OSG-057 superconducting gravimeter (SG) performance in Lhasa in terms of noise levels in the seismic (2 min to 1 h), sub-seismic (1 to 6 h), and tidal (above 6 h) bands. Based on the Seismic Noise Magnitude (SNM) and Sub-Seismic Noise
Miaomiao Zhang +4 more
doaj +1 more source
Ambient seismic noise in Cuba: analysis of broadband seismic stations in the Cuban Seismic Network
Dyna, 2022 This paper analyses seismic noise from broadband seismic stations within the Cuban National Seismic Service, focusing on location sites, soil or rock quality at installation sites and the impact of various factors on the noise signature of these seismic
Viana Poveda Brossard +1 more
doaj +1 more source
The Seismic Record, 2021 Quantifying the response of human activity to different COVID-19 measures may serve as a potential way to evaluate the effectiveness of the measures and optimize them.
Junzhu Shen, Tieyuan Zhu
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Vibration induced phase noise in Mach-Zehnder atom interferometers [PDF]
, 2006 The high inertial sensitivity of atom interferometers has been used to build accelerometers and gyrometers but this sensitivity makes these interferometers very sensitive to the laboratory seismic noise.
Büchner, Matthias +4 more
core +3 more sources
Displacement power spectrum measurement of a macroscopic optomechanical system at thermal equilibrium [PDF]
, 2006 The mirror relative motion of a suspended Fabry-Perot cavity is studied in the frequency range 3-10 Hz. The experimental measurements presented in this paper, have been performed at the Low Frequency Facility, a high finesse optical cavity 1 cm long ...
Barsotti, L. +29 more
core +2 more sources