重庆大学学报：自然科学版2011，Vol.34Issue(10)：147-152,6.
自适应陷波器的科氏流量计信号频率跟踪方法
Frequency tracking method and simulation for coriolis mass flowmter based on a new adaptive notch filter
摘要
Abstract
In order to improve the long-playing frequency tracking ability in the signal processing for coriolis mass flowmeter（CMF）,a new IIR adaptive notch filter（ANF） is developed via steiglitz-mcBride method（SMM） and applied to filter the sensor output signal whose frequency,amplitude and phase are time-varying following the random walk model.The proposed method can detect the signal frequency fleetly and track the frequency variations continuously.The tracking performances of the proposed method and the adaptive lattice notch filter（LANF） method are investigated with computer simulations.Simulations demonstrate the superiority of the proposed method and show it has advantages of fast convergence rate,insensitivity to initial phase variations,and higher long-playing tracking stability and accuracy than LANF method.关键词
科氏质量流量计/随机游动模型/频率跟踪/自适应陷波器Key words
coriolis mass flowmeter（CMF）/random walk model/frequency tracking/adaptive notch filter分类
机械制造引用本文复制引用
涂亚庆,苏奋华,沈廷鳌,张海涛..自适应陷波器的科氏流量计信号频率跟踪方法[J].重庆大学学报：自然科学版,2011,34(10):147-152,6.基金项目
国家自然科学基金资助项目 （）
重庆市自然科学基金资助项目 （）
