Last Updated
：2025/11/23
Ormsby filter
Noun
Japanese Meaning
Ormsbyフィルタ：台形形状を持つフィルタで、4つの境界周波数（f1、f2、f3、f4）によって特性が決定される。具体的には、f1未満およびf4超の周波数成分を除去し、f1からf2およびf3からf4の間では振幅が線形に変化、f2からf3の間では平坦な応答を示す。
（ plural ）
Quizzes for review
A filter of trapezoidal shape specified by four corner frequencies, f1 through f4. The filter rejects below f1 and above f4, is linear from f1 to f2 and from f3 to f4, and is flat from f2 to f3.
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Ormsby filter
When processing seismic data, the engineer applied an Ormsby filter to isolate the desired frequency band between f2 and f3 while attenuating noise below f1 and above f4.
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When processing seismic data, the engineer applied an Ormsby filter to isolate the desired frequency band between f2 and f3 while attenuating noise below f1 and above f4.
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