Abstract
This paper presents a filtering approach that exploits structural differences between the grain and flaw echo through spectral correlation. Analytical and simulation results demonstrate that back-scattered energy from many randomly distributed scatterers within a resolution cell results in no spectral correlation, while back-scattered energy from resolution cells with only a few scatterers exhibits significant spectral correlation. Performance differences between simple spectral correlation filters and conventional spectral filters are discussed for simple and complex (more than one effective scattering center) defects.
Original language | English |
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Pages (from-to) | 725-728 |
Number of pages | 4 |
Journal | Proceedings - IEEE Ultrasonics Symposium |
Volume | 1 |
State | Published - 1995 |
Event | Proceedings of the 1995 IEEE Ultrasonics Symposium. Part 1 (of 2) - Seattle, WA, USA Duration: Nov 7 1995 → Nov 10 1995 |
ASJC Scopus subject areas
- Acoustics and Ultrasonics