Abstract
The objective of this paper is to formulate the defect ultrasonic model in the polyspectra domain in which the processing is more suitable to unravel the effect of the measurement system and the additive Gaussian noise. Synthesized as well as real data obtained from artificial defects are used in this paper. Comparison of the impulse response obtained from the proposed HOS-based deconvolution technique and that obtained from its counterpart conventional SOS-based deconvolution technique demonstrates clearly the superiority of the former (proposed) over the later technique.