Potential Accuracy of Estimation of the Information Parameter of a Homodyne Laser Doppler Vibrometer Signal

  • V. A. Grechikhin
  • T. A. Khrennikova
Optical Information Technologies


This paper describes the analysis of the potential accuracy of estimation of the signal modulation index of a homodyne laser Doppler vibrometer with frequency modulation and known and unknown non-information parameters of the signal. The Rao — Cramer inequality is used to obtain expressions for calculating the lower bound of variance of the modulation index estimate and study its relationship with a signal/noise mixture. Recommendations on the choice of conditions for measuring the amplitude of vibro-displacement by the homodyne Doppler laser vibrometer are given.


homodyne laser Doppler vibrometer signal modulation index lower bound of the estimate variance 


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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.Moscow Power Engineering Institute (National Research University)MoscowRussia

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