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論文
渦電流探傷における欠陥形状復元のための新しい信号処理法
著者:
兼本 茂,Shigeru KANEMOTO,程 衛英,Weiying CHENG,志波 光晴,Mitsuharu SHIWA,古村 一朗,Ichiro KOMURA
発刊日:
公開日:
キーワードタグ:
Deconvolution Filter Eddy Current Test Line Spread Function Linear Discriminant Analysis Point Spread Function SCC
兼本 茂,Shigeru KANEMOTO,程 衛英,Weiying CHENG,志波 光晴,Mitsuharu SHIWA,古村 一朗,Ichiro KOMURA
発刊日:
公開日:
キーワードタグ:
Deconvolution Filter Eddy Current Test Line Spread Function Linear Discriminant Analysis Point Spread Function SCC
This study proposes new signal processing methods to restore surface shapes of flaws from eddy current testing（ECT）signals. A linear discriminant analysis method is applied to ECT signals embedded in multi-dimensional state space to identify flaw signals form background noises in prior. A new concept of equivalent point spread function is introduced, and the real flaw shape is restored by utilizing a deconvolution filter based on Richardson-Lucy algorithm. An EDM notch covered by large welding noises...
英字タイトル:
New Signal Processing Methods for Surface Shape Restoration in Eddy Current
英字タイトル:
New Signal Processing Methods for Surface Shape Restoration in Eddy Current