CEPSTRAL PREDICTION ANALYSIS OF THE SIGNAL PATHWAY IN AN ULTRASONIC A-SCAN

Autor:	M. G. S. Ali, A. Raouf Mohamed
Rok vydání:	2000
Předmět:	Acoustics and Ultrasonics Mechanical Engineering Acoustics Physics::Medical Physics Condensed Matter Physics Scan line Quality (physics) Amplitude Homomorphic filtering Transducer Mechanics of Materials Cepstrum Electronic engineering Ultrasonic sensor Deconvolution Mathematics
Zdroj:	Journal of Sound and Vibration. 236:609-621
ISSN:	0022-460X
DOI:	10.1006/jsvi.2000.2997
Popis:	Digital deconvolution of ultrasonic echo signals improves resolution and the quality of ultrasonic images. The Homomorphic deconvolution technique under noisy conditions is applied to simulation results in an ultrasonic pulse–echo amplitude scan line. The simulation includes radiation coupling and transducer response, as well as frequency-dependent absorption in the field medium. An accurate method of estimating the pulse-shaping effects of the transducer and the test medium are developed by using Homomorphic filtering. Experimental results are given which confirm the modelling.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9d00e6ab761a0d5a62f221a535fbdfdc https://doi.org/10.1006/jsvi.2000.2997 Zobrazit plný text záznamu Full Text from ScienceDirect