The Effect of a Particle Trajectory through the Measurement Volume on the Accuracy of the Laser Doppler Frequency Estimation

Janusz Kulon*, Lu Zhang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The minimum achievable uncertainty of the Doppler frequency estimation of any unbiased estimator is given by the Cramer-Rao lower bound (CRLB). In this paper, we consider the effect of the particle trajectory via the measurement volume on the CRLB by employing the 2D model of the Gaussian envelope of the Doppler Burst Signal (DBS). The simulation results confirmed the theoretical predictions in terms of the relative effect of the particle trajectory, the measurement time, the size of the volume and SNR on the accuracy of the Doppler frequency estimation. The obtained analytical expression for the CRLB could be applied in engineering applications, e.g. requiring the estimation of the uncertainty of cross flow particle velocity with a known mean flow velocity component.

Original languageEnglish
Title of host publication2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings
PublisherInstitute of Electrical and Electronics Engineers
Pages20-24
Number of pages5
ISBN (Print)978-1-4673-6385-3
DOIs
Publication statusPublished - 21 Jul 2014
EventIEEE International Instrumentation and Measurement Technology Conference (I2MTC) - Montevideo, Uruguay
Duration: 12 May 201415 May 2014

Publication series

Name
ISSN (Print)1091-5281

Conference

ConferenceIEEE International Instrumentation and Measurement Technology Conference (I2MTC)
Country/TerritoryUruguay
CityMontevideo
Period12/05/1415/05/14

Keywords

  • Cramer-Rao bound
  • Laser Doppler Anemometry
  • frequency estimation
  • CRAMER-RAO BOUNDS
  • ANEMOMETER

Fingerprint

Dive into the research topics of 'The Effect of a Particle Trajectory through the Measurement Volume on the Accuracy of the Laser Doppler Frequency Estimation'. Together they form a unique fingerprint.

Cite this