Title :
An H∞ deconvolution filter and its application to ultrasonic nondestructive evaluation of materials
Author :
Hanshaw, Timothy C. ; Anderson, Michael J. ; Hsu, Chin S.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
Abstract :
Deconvolution can be a valuable technique for interpreting results of ultrasonic nondestructive evaluation (NDE) tests of materials. This is especially true for state-of-the-art hybrid materials. In this paper, a new H∞ deconvolution filter is presented. The filter is applied to typical ultrasonic NDE data, including through-transmission data for aluminum and composite samples. The results are compared to those obtained from a Wiener deconvolution filter. The performance of the H∞ filter is as good or better than the performance of the Wiener filter
Keywords :
H∞ optimisation; acoustic convolution; deconvolution; filtering theory; ultrasonic materials testing; Al; H∞ deconvolution filter; NDE; US NDT; Wiener deconvolution filter; aluminum; composite samples; state-of-the-art hybrid materials; through-transmission data; ultrasonic nondestructive evaluation; ultrasonic nondestructive materials testing; Acoustic beams; Acoustic pulses; Composite materials; Data mining; Deconvolution; Electronic equipment testing; Frequency; Performance evaluation; Ultrasonic variables measurement; Wiener filter;
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4990-3
DOI :
10.1109/ACC.1999.786243
