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Titolo:
STUDIES ON ULTRASONIC SCATTERING FROM QUASI-PERIODIC STRUCTURES
Autore:
NARAYANAN VM; MOLTHEN RC; SHANKAR PM; VERGARA L; REID JM;
Indirizzi:
DREXEL UNIV,INST BIOMED ENGN & SCI PHILADELPHIA PA 19104 DREXEL UNIV,DEPT ELECT & COMP ENGN PHILADELPHIA PA 19104 UNIV POLITECN VALENCIA,DEPT COMMUN E-46071 VALENCIA SPAIN
Titolo Testata:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
fascicolo: 1, volume: 44, anno: 1997,
pagine: 114 - 124
SICI:
0885-3010(1997)44:1<114:SOUSFQ>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
NONUNIFORM PHASE DISTRIBUTION; NON-RAYLEIGH STATISTICS; SPECKLE ANALYSIS; NUMBER DENSITY; K-DISTRIBUTION; SIGNALS; FREQUENCY; MODEL; ECHO;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
V.M. Narayanan et al., "STUDIES ON ULTRASONIC SCATTERING FROM QUASI-PERIODIC STRUCTURES", IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 44(1), 1997, pp. 114-124

Abstract

This study extends the work done on nonuniform phase statistics by including additional results based on quasi-periodic scattering. Three parameters are used to predict the presence of regular structure withinthe region of interest. The signal-to-noise ratio of phase and the chi(2) statistic resulting from conducting a goodness of fit test are two parameters used to verify whether the phase signal followed a uniform distribution. A third parameter, the power spectral density (PSD), was studied and its ability to provide information on the level of periodicity present was analyzed. Computer simulations and experiments on tissue mimicking phantoms were carried out, the results of which indicate that the parameters introduced in this paper have good potential in providing a better understanding of scattering from a collection of quasi-periodic scatterers.

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Documento generato il 07/07/20 alle ore 22:31:37