Dynamic behavior of a digital phase estimator

Author

Bertocco, M. ; Offelli, C. ; Petri, D.

Author_Institution

Dipartimento di Elettronica e Inf., Padua Univ., Italy

fYear

1992

fDate

12-14 May 1992

Firstpage

100

Lastpage

105

Abstract

A frequency-domain estimator for the phase of a sinewave with respect to an arbitrary time reference is presented. The behavior of the estimate is analyzed when the unknown phase is a time-varying function. No information on the signal frequency is required, and highly accurate results are provided even when the signal is distorted by other spectral components (harmonics or spurious tones). The effect on the estimate of an instantaneous phase with a step, linear or sinusoidal time behavior is reported, and the influence of small phase fluctuations and of spurious signal disturbances is taken into account

Keywords

digital instrumentation; parameter estimation; phase measurement; signal processing equipment; arbitrary time reference; digital phase estimator; digital signal processor; dynamic behaviour; frequency-domain estimator; harmonics; phase fluctuations; sinewave; spurious signal disturbances; step variation; time-varying function; Bandwidth; Frequency domain analysis; Frequency estimation; Frequency measurement; Harmonic distortion; Phase estimation; Phase measurement; Pulse measurements; Sampling methods; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1992. IMTC '92., 9th IEEE

Conference_Location

Metropolitan, NY

Print_ISBN

0-7803-0640-6

Type

conf

DOI

10.1109/IMTC.1992.245168

Filename

245168