A new method for arrival time determination of impact signal based on HHT and AIC
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- 作者：Mingzhou Liub ; Jiangxin Yangb ; Yanpeng Caob ; Weinan Fub ; Yanlong Caoa ; b ; sdcaoyl@zju.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Impact signal ; Arrival time ; HHT ; AIC ; Instantaneous frequency
- 刊名：Mechanical Systems and Signal Processing
- 出版年：2017
- 出版时间：1 March 2017
- 年：2017
- 卷：86
- 期：part_PA
- 页码：177-187
- 全文大小：1243 K
文摘
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We study the determination of arrival time of impact signal.
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The proposed method is based on HHT and AIC.
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The method keeps high accuracy under different SNRs.
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The method keeps stable with different sensor to drop point distance.
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The proposed method is compared with another AIC approach and a RMS method.