Title :
Dynamic behavior of a digital phase estimator
Author :
Bertocco, Matteo ; Offelli, Carlo ; Petri, Dario
Author_Institution :
Dipartimento di Elettronica e Inf., Padova Univ., Italy
fDate :
12/1/1992 12:00:00 AM
Abstract :
A frequency-domain estimator for the phase of a sinewave with respect to an arbitrary time reference is presented. In particular, the behavior of the estimate is analyzed when the unknown phase is a time-varying function. No information regarding the signal frequency is required, and highly accurate results are provided even when the signal is distorted by other spectral components, both harmonics and spurious tones. Modern digital signal processors allow the realization of digital instrumentation that achieves a real-time bandwidth of some hundreds of kilohertz
Keywords :
digital instrumentation; frequency-domain analysis; parameter estimation; phase measurement; phase meters; signal processing; signal processing equipment; arbitrary time reference; digital instrumentation; digital phase estimator; digital signal processors; frequency-domain estimator; real-time bandwidth; signal frequency; sinewave; Bandwidth; Digital signal processors; Frequency estimation; Frequency measurement; Harmonic distortion; Phase estimation; Phase measurement; Pulse measurements; Sampling methods; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
