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ファイル | 記述 | サイズ | フォーマット | |
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j.jmr.2011.04.003.pdf | 988.12 kB | Adobe PDF | 見る/開く |
タイトル: | Post-processing of individual signals for de-noising. |
著者: | Fukazawa, Jun Takeda, Kazuyuki https://orcid.org/0000-0002-6743-0932 (unconfirmed) Takegoshi, K https://orcid.org/0000-0002-4613-2987 (unconfirmed) |
著者名の別形: | 竹腰, 清乃理 |
キーワード: | De-noising Phase of signal Intensity of signal Phase-standard-deviation Phase-covariance PSDW PCW |
発行日: | Jul-2011 |
出版者: | Elsevier Inc. |
誌名: | Journal of magnetic resonance |
巻: | 211 |
号: | 1 |
開始ページ: | 52 |
終了ページ: | 59 |
抄録: | In this work, we examine the fluctuation of the intensity and the phase of an NMR signal during repetition of experiments and investigate possibilities of using these information to judge suspicious peaks, whose true colors may be noises or genuine signals. We firstly analyze the intensity and the phase of an NMR signal separately, and show that for the accumulated spectral profile the contribution of the intensity is less than that of the phase. Secondly we show that we can de-noise a noisy spectrum by using the standard deviation of phase at each spectral point. We then compare the de-noising effect of the present approach and that of the phase-covariance method proposed recently, which is an alternative method of appreciating phase distribution. Finally, effects of the dispersion component are discussed. |
著作権等: | © 2011 Elsevier Inc. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/143583 |
DOI(出版社版): | 10.1016/j.jmr.2011.04.003 |
PubMed ID: | 21546291 |
出現コレクション: | 学術雑誌掲載論文等 |
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