Multiphase Pipe Flow velocity profile measurements by Doppler Ultrasound Containing a High Level of Colored Noise

Jean-Pierre Remenieras (1) , Denis Kouamé (1, 2) , Jean-Marc Grégoire (1) , P. Jaraczewski , Frédéric Patat (1)

1 LUSSI - Laboratoire Ultrasons Signaux et Instrumentation
2 IRIT-TCI - Traitement et Compréhension d’Images

This paper presents an application of continuous wave Doppler ultrasound measurement to two phase flow in pipes. A specific Doppler system has been developed for this purpose. The presence of strong colored noise in the experimental Doppler signals was an incentive to use a complex UDV/sup H/ factored form of the instrumental variable identification technique. Direct Doppler frequency estimation is then obtained using the argument poles of the autoregressive model which identifies the Doppler part of the signal. The performed tests with a complex parametric theoretical model, simulated and experimental Doppler signals have demonstrated the superiority of this adaptive signal processing method compared with the UDU/sup H/ factored form of the recursive least square autoregressive identification algorithm.

Mots clés: Fluid flow measurement; Velocity measurement; Signal processing; Ultrasonic variables measurement; Ultrasonic imaging; Phase measurement; Colored noise; Instruments; Frequency estimation; Performance evaluation

Domaines: Traitement du signal et de l'image [eess.SP]

Jean-Pierre Remenieras, Denis Kouamé, Jean-Marc Grégoire, P. Jaraczewski, Frédéric Patat. Multiphase Pipe Flow velocity profile measurements by Doppler Ultrasound Containing a High Level of Colored Noise. IEEE International Ultrasonics Symposium, Nov 1996, San Antonio, Texas, United States. pp.629--634, ⟨10.1109/ULTSYM.1996.584055⟩. ⟨hal-03153382⟩