Frequency estimation method for measuring time-varying single frequency from digitized waveform

Author

Maru, Koichi ; Fujii, Yusaku ; Hessling, Jan Peter ; Shimada, Kazuhito

Author_Institution

Dept. of Electron. Eng., Gunma Univ., Kiryu

fYear

2009

fDate

25-27 May 2009

Firstpage

3687

Lastpage

3689

Abstract

A frequency estimation method (ZFM: zero-crossing fitting method) for measuring time-varying single frequency is applied to determine the velocity of the mass for a space scale. The difference between the ZFM and conventional zero-crossing method used in typical electric frequency counters is discussed. The velocity derived from estimated Doppler frequency is evaluated with considerably lower level of noise using the ZFM instead of the conventional method for the same downsampling ratio.

Keywords

Doppler effect; frequency estimation; frequency measurement; time-varying networks; Doppler frequency; digitized waveform; electric frequency counters; frequency estimation; time-varying single frequency; zero-crossing fitting; Counting circuits; Extraterrestrial measurements; Force measurement; Frequency estimation; Frequency measurement; Mechanical variables measurement; Optical interferometry; Optical noise; Testing; Velocity measurement; digitizer; frequency estimation; optical interferometer; precision measurement; zero crossing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-2799-4

Electronic_ISBN

978-1-4244-2800-7

Type

conf

DOI

10.1109/ICIEA.2009.5138844

Filename

5138844