Analysis of order statistic filters applied to ultrasonic flaw detection using split-spectrum processing.

Analysis of order statistic filters applied to ultrasonic flaw detection using split-spectrum processing. Research Abstract Details 

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Analysis of order statistic filters applied to ultrasonic flaw detection using split-spectrum processing. Abstract Text:

J Saniie,D T Nagle,K D Donohue,

Split-spectrum processing of broadband ultrasonic signals coupled with order statistic filtering has proven to be effective in improving the flaw-to-clutter ratio of backscattered signals. It is shown that an optimal rank can be obtained with a prior knowledge of flaw-to-clutter ratio and the underlying distributions. The order statistic filter performs well where the flaw and clutter echoes have good statistical separation in a given quantile region representing a particular rank (e.g. minimum, median, maximum). Order statistic filters are analyzed for the situation in which the observations do not contain equivalent statistical information. Experimental and simulated results are presented to show how effectively the order statistic filter can utilize information contained in different frequency bands to improve flaw detection.

Analysis of order statistic filters applied to ultrasonic flaw detection using split-spectrum processing. Publishing Authors By Initials

J Saniie,DT Nagle,KD Donohue,

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Analysis of order statistic filters applied to ultrasonic flaw detection using split-spectrum processing. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: IEEE transactions on ultrasonics, ferroelectrics,

VOLUME: 38

Page Numbers: 133-40

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ISSN: 0885-3010

DAY: 12

MONTH: 02

YEAR: 1991

Analysis of order statistic filters applied to ultrasonic flaw detection using split-spectrum processing. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Analysis of order statistic filters applied to ultrasonic flaw detection using split-spectrum processing.

AFFILIATION: Dept. of Electr. and Comput. Eng., Illinois Inst. of Technol., Chicago, IL.

Country: United States

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MEDLINETA: IEEE Trans Ultrason Ferroelect

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