Testing a sensor to produce a filter for noise attenuation
AssigneeWesternGeco L.L.C.
InventorDaniel Ronnow
Life of this patent
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Abstract
To test a seismic sensor, an output of the seismic sensor in response to a test signal applied by a signal generator is measured. According to a first function that corresponds to a reference response of the seismic sensor and according to a second function that corresponds to a signal containing noise in an environment of the seismic sensor, a filter is created to perform attenuation of the noise. The filter is applied to attenuate noise during testing of the seismic sensor.
Claims23
A method of testing a seismic sensor, comprising:
- measuring an output of the seismic sensor in response to a test signal applied by a signal generator;
- determining a response based on the output of the seismic sensor;
- according to a first function that corresponds to a reference response of the seismic sensor and according to a second function that corresponds to a signal containing noise in an environment of the seismic sensor, creating a filter to perform attenuation of the noise;
- and
- applying the filter to the response based on the output to attenuate the noise in the output of the seismic sensor during testing of the seismic sensor.
An article comprising at least one computer-readable storage medium containing instructions that when executed cause a computer to:
- measure properties of noise in an environment of a seismic sensor;
- measure an output of the seismic sensor in response to a test signal applied by a signal generator;
- determine a response based on the output of the seismic sensor;
- according to the measured properties of the noise and properties of a reference response of the seismic sensor in an absence of noise, create a filter to perform attenuation of the noise;
- and
- apply the filter to the response based on the output to attenuate noise in the output of the seismic sensor during testing of the seismic sensor.
A computer comprising:
- a network interface to receive a measured output of a seismic sensor in response to a test signal applied by a signal generator;
- a computer-readable storage medium storing instructions;
- and
- a processor, wherein the instructions are executable by the processor to:
- determine a response based on the output of the seismic sensor;
- according to a first function that corresponds to a reference response of the seismic sensor and according to a second function that corresponds to a signal containing noise in an environment of the seismic sensor, create a filter to perform attenuation of the noise;
- and
- apply the filter to the response based on the output to attenuate noise in the output of the seismic sensor during testing of the seismic sensor.
Dependencies are inferred from the claim text.