Guangfei Jia*, Fengwei Guo, Zhe Wu, Suxiao Cui, Jiajun Yang
Structural Durability & Health Monitoring, Vol.17, No.5, pp. 383-405, 2023, DOI:10.32604/sdhm.2023.026885
Abstract With the development of multi-signal monitoring technology, the research on multiple signal analysis and processing has become a hot subject. Mechanical equipment often works under variable working conditions, and the
acquired vibration signals are often non-stationary and nonlinear, which are difficult to be processed by traditional analysis methods. In order to solve the noise reduction problem of multiple signals under variable speed,
a COT-DCS method combining the Computed Order Tracking (COT) based on Chirplet Path Pursuit (CPP) and
Distributed Compressed Sensing (DCS) is proposed. Firstly, the instantaneous frequency (IF) is extracted by CPP,
and the speed is obtained by fitting.… More >
Graphic Abstract
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