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Seismic interferometry—turning noise into signal
The Leading Edge, 2006Turning noise into useful data—every geophysicist's dream? And now it seems possible. The field of seismic interferometry has at its foundation a shift in the way we think about the parts of the signal that are currently filtered out of most analyses—complicated seismic codas (the multiply scattered parts of seismic waveforms) and background noise ...
Curtis, A. (author) +4 more
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Seismic noise and gravity-gradient noise
2019Gravity gradient noise is generated by mass density changes through fluctuating gravity fields. Ambient seismic noise generated by microseismism, wind or of antropogenic origin is a possible source of such fluctuations. This work gives an overview of the impact of seismic noise and gravity-gradient noise on existing gravitational-wave detectors, and ...
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Exploration Geophysics, 1988
Wave test seismograms from an Aramco concession area show crisscross patterns of noise which mask the reflections. The criss-cross pattern that follows the arrival of the Rayleigh wave is sometimes very strong and entirely masks any reflections that may be present. This zone is very often referred to as the 'noise cone'.
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Wave test seismograms from an Aramco concession area show crisscross patterns of noise which mask the reflections. The criss-cross pattern that follows the arrival of the Rayleigh wave is sometimes very strong and entirely masks any reflections that may be present. This zone is very often referred to as the 'noise cone'.
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Measurement of seismic noise with a laser interferometer
SPIE Proceedings, 2004Laser interferometry is one of the most sensitive methods for small displacement displacement. This technique was successfully used in several fields of physics, giving very good performances also due to the large availability of optical components and high quality and relatively low cost laser sources.
ACERNESE, Fausto +3 more
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Characterization of seismic signals and background seismic noise
The Journal of the Acoustical Society of America, 2004A variety of signal processing methodologies have been utilized in the analysis and characterization of the seismic signals and the background noise recorded by modern seismic instrumentation at the UC Berkeley Seismological Laboratory. The capabilities of seismic instrumentation have vastly improved over the past couple of decades since the advent of ...
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Seismic Noise without a Seismic Source
66th EAGE Conference & Exhibition, 2004J. Meunier, J.P. Menard
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Seismic signal and noise processing
The Journal of the Acoustical Society of America, 1975The character of seismic signals and noise is known on the basis of theoretical solutions of the elastic wave equation and from observations made at seismic stations and arrays. The design of these arrays depends on the correlation structure of the signals and noise, and on whether the goal is to separate mixed signals or to detect signals in noise ...
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Bulletin of the Seismological Society of America, 1967
abstract This report consists of a summary of the studies conducted on the subject of short-period (6.0-0.3 sec period) noise over a period of approximately three years. Information from deep-hole and surface arrays was used in an attempt to determine the types of waves of which the noise is composed.
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abstract This report consists of a summary of the studies conducted on the subject of short-period (6.0-0.3 sec period) noise over a period of approximately three years. Information from deep-hole and surface arrays was used in an attempt to determine the types of waves of which the noise is composed.
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