Cross-Correlation Analysis of Digital Speckle Photography
Journal Article
·
· Journal of Engineering Physics and Thermophysics
- South-Urals State University (National Research University) (Russian Federation)
This paper describes new algorithms for processing noisy specklograms, which permit quantitative diagnostics of the microstructure of shock-wave flows with a subpicosecond accuracy with the use of statistical analysis of numerically registered speckle fields disturbed by the refraction in the investigated flows. The software developed by us permits reconstructing up to 10,000 vector angles of probe radiation deflection in a two-dimensional region of size 20 × 30 mm{sup 2} in imaging a speckle field with optical magnification M = 1.
- OSTI ID:
- 22809834
- Journal Information:
- Journal of Engineering Physics and Thermophysics, Journal Name: Journal of Engineering Physics and Thermophysics Journal Issue: 5 Vol. 91; ISSN 1062-0125; ISSN JEPTER
- Country of Publication:
- United States
- Language:
- English
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