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

Volume

46

Issue

5

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

889

Lastpage

896

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;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.793336

Filename

793336