兵工自动化2024，Vol.43Issue(6)：15-20,6.DOI:10.7690/bgzdh.2024.06.005
结合EEMD的噪声对消方法在遥测振动信号降噪中的应用
Application of Noise Cancellation Method Combined with EEMD in Noise Reduction of Telemetry Vibration Signal
曾科军 1张慧娟 1赵书圆1
作者信息
- 1. 中国人民解放军91550部队,辽宁 大连 116023
- 折叠
摘要
Abstract
Aiming at the contradiction between detail information loss and noise reduction performance in aircraft telemetry vibration signal,a noise reduction method based on ensemble empirical mode decomposition(EEMD)and noise cancellation is proposed.The signal is processed by EEMD to obtain an intrinsic mode function(IMF),and the sum of the first order IMF component and the accumulated sum of other IMF components are respectively used as the reference noise and the signal to be denoised;The signal is mapped to a high-dimensional feature space by using a kernel method,and the reference noise and the signal to be denoised which are mapped to the high-dimensional feature space are used for noise cancellation.The computer simulation results show that the method has good noise reduction performance on the premise of avoiding the loss of signal detail information,and the processing results of the measured data in an aircraft test prove the effectiveness and practicability of the method.关键词
遥测/噪声对消/EEMD/振动信号Key words
telemetry/noise cancellation/EEMD/vibration signal分类
信息技术与安全科学引用本文复制引用
曾科军,张慧娟,赵书圆..结合EEMD的噪声对消方法在遥测振动信号降噪中的应用[J].兵工自动化,2024,43(6):15-20,6.
