摘要
针对管道发生小泄漏时产生微弱信号难以识别的难题,提出采用小波包分解的频带能量特征提取方法,根据不同工况下和小泄漏产生时信号的频带能量不同,建立管道运行状态的特征向量和模式库,从而提高了对管道运行的监测能力。
For solving the difficult problem to distinguish weak signal of pipeline leakage, this paper presents using wavelet packet elaborate frequency division technique we can decompose the signal frequency bandwidth more subtly and establish the feature vector and pipeline operation state based on frequency segment power.
出处
《内蒙古石油化工》
CAS
2008年第17期3-4,共2页
Inner Mongolia Petrochemical Industry
关键词
管道泄漏
微弱信号
特征提取
Pipeline Leakage
Weak Signal
Feature Extraction
