Physics – Classical Physics
Scientific paper
2009-07-07
IEEE Transactions on Instrumentation and Measurement 57, 7 (2007) 1455-1464
Physics
Classical Physics
Scientific paper
10.1109/TIM.2008.917670
This paper presents a least mean square (LMS) algorithm for the joint estimation of acoustic and mean flow velocities from laser doppler velocimetry (LDV) measurements. The usual algorithms used for measuring with LDV purely acoustic velocity or mean flow velocity may not be used when the acoustic field is disturbed by a mean flow component. The LMS-based algorithm allows accurate estimations of both acoustic and mean flow velocities. The Cram\'er-Rao bound (CRB) of the associated problem is determined. The variance of the estimators of both acoustic and mean flow velocities is also given. Simulation results of this algorithm are compared with the CRB and the comparison leads to validate this estimator.
Degroot Anne
Lionet Louis
Richoux Olivier
Simon Laurent
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