Matched filter data smoothing system
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United States of America Patent
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Jul 13, 1993
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N/A
app pub date -
Sep 18, 1989
filing date -
Sep 18, 1989
priority date (Note) -
Expired
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Abstract
An efficient spatial smoothing algorithm for filtering data while preserving spatial detail is obtained using the system (impulse response) function of the sensor. In contrast to the normal procedure for determining the filter coefficients for an arbitrary system function, this technique avoids the use of Fourier transforms. The spatial filtering coefficients are obtained analytically for the frequently applicable Gaussian system function. The efficiency of this procedure is illustrated by filtering discrete data. For realtime smoothing of nuclear log data, a filter length of five times the vertical resolution is required.
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