Title :
Blind deconvolution of ultrasonic signals in nondestructive testing applications
Author :
Nandi, A.K. ; Mämpel, D. ; Roscher, B.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
fDate :
5/1/1997 12:00:00 AM
Abstract :
Advanced nondestructive testing techniques use a laser to generate ultrasonic waves at the surface of a test material. An air-coupled transducer receives the ultrasound that is the convolution of the signal leaving the test material and the distortion function. Blind deconvolution methods are applied to estimate the signal leaving the material
Keywords :
acoustic convolution; deconvolution; ultrasonic materials testing; ultrasonic transducers; air-coupled transducer; blind deconvolution; convolution; distortion function; laser; nondestructive testing applications; signal estimation; test material surface; ultrasonic signals; ultrasonic wave generation; Convolution; Deconvolution; Laser noise; Materials testing; Nondestructive testing; Optical materials; Surface emitting lasers; Surface waves; Ultrasonic imaging; Ultrasonic transducers;
Journal_Title :
Signal Processing, IEEE Transactions on
