Number of the records: 1
Nonlinear signal processing for ultrasonic imaging of material complexity
- 1.
SYSNO ASEP 0353569 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nonlinear signal processing for ultrasonic imaging of material complexity Author(s) Dos Santos, S. (FR)
Vejvodová, Šárka (UT-L)
Převorovský, Zdeněk (UT-L) RIDNumber of authors 3 Source Title Proceedings of the Estonian Academy of Sciences - ISSN 1736-6046
Roč. 59, č. 2 (2010), s. 108-117Number of pages 10 s. Language eng - English Country EE - Estonia Keywords nonlinear signal processing ; TR-NEWS ; symmetry analysis ; DORT Subject RIV BI - Acoustics CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000278337800008 DOI 10.3176/proc.2010.2.08 Annotation Ultrasonic imaging of material complexity is investigated theoretically and experimentally using the concept of symmetry analysis based signal processing in symbiosis with nonlinear elastic wave spectroscopy. These concepts were tested experimentally on several complex media with an advanced electronic system. This system exploits TR invariance, reciprocity, and coded excitation for an accurate extraction of the nonlinear signature of the medium under ultrasonic monitoring. Tested both in the context of the medical imaging of a tooth and in those of nondestructive testing of aeronautic composites, the basis of a new tomographic imaging of material complexity is presented with the help of algebraic concepts describing the TR operators. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2011
Number of the records: 1