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 |
|---|---|
| Pages (from-to) | 725-728 |
| Number of pages | 4 |
| Journal | Proceedings of the 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