Title :
Variable-sample-rate delayless frequency-adaptive digital filter for synchronized signal acquisition and sampling
Author :
Dawson, Francis P. ; Klaffke, Linus
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
fDate :
10/1/1999 12:00:00 AM
Abstract :
In this paper, a hardware-based variable-sample-rate delayless frequency-adaptive cascaded digital filter is proposed. The open-loop frequency-adaptive and delayless property of a cascaded filter consisting of a median filter of length 3, a Blackman bandpass filter of length 30 and a predictive filter of length 25 is experimentally verified. Simulation results illustrating the filter´s output response to input disturbances, in a synchronization signal acquisition application, are also presented
Keywords :
adaptive filters; adaptive signal detection; band-pass filters; median filters; signal processing equipment; signal sampling; synchronisation; Blackman bandpass filter; input disturbance response; median filter; open-loop frequency-adaptive property; predictive filter; synchronized signal acquisition; synchronized signal sampling; variable-sample-rate delayless frequency-adaptive digital filter; Band pass filters; Delay; Digital filters; Frequency synchronization; Power system harmonics; Sampling methods; Signal generators; Signal processing; Signal sampling; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
