کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6955077 1451855 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new performance evaluation scheme for jet engine vibration signal denoising
ترجمه فارسی عنوان
یک طرح ارزیابی عملکرد جدید برای جابجایی سیگنال ارتعاش موتور جت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
Denoising of a cargo-plane jet engine compressor vibration signal is investigated in this article. Discrete wavelet transform and two families of Donoho-Johnston and parameter method thresholding, are applied to vibration signal. Eighty four combinations of wavelet thresholding and mother wavelet are evaluated. A new performance evaluation scheme for optimal selection of mother wavelet and thresholding method combination is proposed in this paper, which is make a trade off between four performance criteria of signal to noise ratio, percentage root mean square difference, Cross-correlation, and mean square error. Dmeyer mother wavelet (dmey) combined with Rigorous SURE thresholding has the maximum trade off value and was selected as the most appropriate combination for denoising of the signal. It was shown that inappropriate combination leads to data losing. Also higher performance of proposed trade off with respect to other criteria was proven graphically.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volumes 76–77, August 2016, Pages 201-212
نویسندگان
, ,