About: Comparison of Time-Frequency Distributions for Pulse-Echo Ultrasonic Evaluation and Filtering

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	For a direct evaluation of ultrasonic signals it is necessary to analyse data with an acceptable level of noise. Ultrasonic signals represent a specific category of time domain signals to be analysed. In order to increase difference between the level of noise and the amplitude of the ultrasonic pulse a proper method for data differentiation has to be used. Within this article are discussed and compared two time-frequency distributions. The first approach is via wavelet transform. The second proposed method is S-transform. This transformation has been recently introduced for ultrasonic echo analyses. This tool represents intermediate stage between the Fourier transform analysis and the Wavelet transform analysis. In order to filter ultrasonic signals from Electromagnetic Acoustic transducer with a high level of noise, new, different approach was developed. The result showed complexity of the ultrasonic signal and noise in case of the Electromagnetic Acoustic Transducer. For a direct evaluation of ultrasonic signals it is necessary to analyse data with an acceptable level of noise. Ultrasonic signals represent a specific category of time domain signals to be analysed. In order to increase difference between the level of noise and the amplitude of the ultrasonic pulse a proper method for data differentiation has to be used. Within this article are discussed and compared two time-frequency distributions. The first approach is via wavelet transform. The second proposed method is S-transform. This transformation has been recently introduced for ultrasonic echo analyses. This tool represents intermediate stage between the Fourier transform analysis and the Wavelet transform analysis. In order to filter ultrasonic signals from Electromagnetic Acoustic transducer with a high level of noise, new, different approach was developed. The result showed complexity of the ultrasonic signal and noise in case of the Electromagnetic Acoustic Transducer. (en)
Title	Comparison of Time-Frequency Distributions for Pulse-Echo Ultrasonic Evaluation and Filtering Comparison of Time-Frequency Distributions for Pulse-Echo Ultrasonic Evaluation and Filtering (en)
skos:prefLabel	Comparison of Time-Frequency Distributions for Pulse-Echo Ultrasonic Evaluation and Filtering Comparison of Time-Frequency Distributions for Pulse-Echo Ultrasonic Evaluation and Filtering (en)
skos:notation	RIV/68407700:21230/10:00169444!RIV11-GA0-21230___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GD102/09/H082), S, Z(MSM6840770015)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Šmíd, Radislav Kubínyi, Michal
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	251560
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/10:00169444
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	EMAT, S-Transform, Correlation, Signal Filtering (en)
http://linked.open.../riv/klicoveSlovo	EMAT Correlation S-Transform Signal Filtering
http://linked.open...ontrolniKodProRIV	[0C29363705DA]
http://linked.open...v/mistoKonaniAkce	Košice
http://linked.open...i/riv/mistoVydani	Košice
http://linked.open...i/riv/nazevZdroje	IMEKO Symposium TC-4, TC-19 & IWADC Instrumentation for the ICT Area
http://linked.open...in/vavai/riv/obor	JB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Sensors and intelligent sensor systems
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Kubínyi, Michal Šmíd, Radislav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2010-09-08 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Research of Methods and Systems for Measurement of Physical Quantities and Measured Data Processing.
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Technická univerzita v Košiciach
https://schema.org/isbn	978-80-553-0424-3
http://localhost/t...ganizacniJednotka	21230
is http://linked.open...avai/riv/vysledek of	Comparison of Time-Frequency Distributions for Pulse-Echo Ultrasonic Evaluation and Filtering

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