Geophysical signal analysis is concerned with the detection and subsequent processing of the signals. Any signal which is varying and conveying the valuable information regarding the ground surface and seismic data.
The Geophysical Signal Processing provides the core set of tools, used in delivering seismic surveys. Seismic signal data must first be generated and collected. A source, such as a small dynamite charge, generates a disturbance that travels down through the earth and is then reflected back up from geologic layer boundaries below. Seismic geophones are placed at the surface of the earth in multiple locations to capture the small ground movements that result, translating these movements into voltage signals. By taking readings of this response at a regular sample rate, each geophone captures a unique time series that can be processed and combined with other geophone responses to ultimately produce a series of seismic cross-sections or maps.
Geophysical Signal Processing
Signal processing itself consists of the manipulation and analysis of signals, which typically comes from some kind of measurable phenomenon. It is the study of the earth, or other planets, based upon measurable physical properties. Putting these together, the Geophysical Signal Processing consists of the techniques used to collect measurements of various physical properties of the earth, and then processing or modifying that data to create an image of the earth’s interior.
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