Skjelvareid, Martin Hansen; Olofsson, Tomas; Birkelund, Yngve (Conference object; Konferansebidrag, 2011)
The synthetic aperture focusing technique is a method for focusing ultrasonic scans used in nondestructive testing. Traditionally, the technique has mainly been used for contact testing, where the speed of sound is constant throughout the whole medium, but a number of recently proposed algorithms have extended
the technique to multilayered media. One important application for such multilayer methods ...