![](/images/graphics-bg.png)
An Improved VMD-Based Denoising Method for Time Domain Load Signal Combining Wavelet with Singular Spectrum Analysis
المؤلفون المشاركون
Niu, Wentie
Fu, Jingjing
Cai, Fuyou
Guo, Yonghao
Liu, Hongda
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-04-29
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
Measured load data play a crucial role in the fatigue durability analysis of mechanical structures.
However, in the process of signal acquisition, time domain load signals are easily contaminated by noise.
In this paper, a signal denoising method based on variational mode decomposition (VMD), wavelet threshold denoising (WTD), and singular spectrum analysis (SSA) is proposed.
Firstly, a simple criterion based on mutual information entropy (MIE) is designed to select the proper mode number for VMD.
Detrended fluctuation analysis (DFA) is adopted to obtain the noise level of the noisy signal, which can optimize the selection of MIE threshold.
Meanwhile, the noisy signal is adaptively decomposed into band-limited intrinsic mode functions (BLIMFs) by using VMD.
In addition, weighted-permutation entropy (WPE) is applied to divide the BLIMFs into signal-dominant BLIMFs and noise-dominant BLIMFs.
Then, the signal-dominant BLIMFs are reconstructed with the noise-dominant BLIMFs processed by WTD.
Finally, SSA is implemented for the reconstructed signal.
Experimental results of synthetic signals demonstrate that the presented method outperforms the conventional digital signal denoising methods and the related methods proposed recently.
Effectiveness of the proposed method is verified through experiments of the measured load signals.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Fu, Jingjing& Cai, Fuyou& Guo, Yonghao& Liu, Hongda& Niu, Wentie. 2020. An Improved VMD-Based Denoising Method for Time Domain Load Signal Combining Wavelet with Singular Spectrum Analysis. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1193262
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Fu, Jingjing…[et al.]. An Improved VMD-Based Denoising Method for Time Domain Load Signal Combining Wavelet with Singular Spectrum Analysis. Mathematical Problems in Engineering No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1193262
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Fu, Jingjing& Cai, Fuyou& Guo, Yonghao& Liu, Hongda& Niu, Wentie. An Improved VMD-Based Denoising Method for Time Domain Load Signal Combining Wavelet with Singular Spectrum Analysis. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1193262
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1193262
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
![](/images/kashef-image.png)