Ultrasonic wave propagation through aberrating layers: experimental verification of the conjugate gradient Rayleigh method

Ledoux, L.A.F. and Berkhoff, A.P. and Thijssen, J.M. (1996) Ultrasonic wave propagation through aberrating layers: experimental verification of the conjugate gradient Rayleigh method. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 43 (1). pp. 158-166. ISSN 0885-3010

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Abstract:	The Conjugate Gradient Rayleigh method for the calculation of acoustic reflection and transmission at a rough interface between two media was experimentally verified. The method is based on a continuous version of the conjugate gradient technique and plane-wave expansions. We measured the beam profiles of a nonfocused linear array transducer distorted by propagation through an aberrating interface. The directivity of the hydrophone was compensated for by means of spatial deconvolution. Sinusoidal, cylindrical aberrators were made of a water-based gelatine material. The measurements were compared with 2- and 3-D simulations. The measured and simulated beam profiles are in good agreement, as shown by the root-mean-square difference
Item Type:	Article
Copyright:	© 1996 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Signals and Systems (SAS)
Link to this item:	http://purl.utwente.nl/publications/64792
Official URL:	http://dx.doi.org/10.1109/58.484475
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