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Two-dimensional sampling rate alteration via one-dimensional techniques / Omrani, Mabrouk 

Public ISBD Titre : Two-dimensional sampling rate alteration via one-dimensional techniques Type de document : texte imprimé Auteurs : Omrani, Mabrouk, Auteur ; B. Basu, Directeur de thèse Editeur : Stevens Institute of Technology Année de publication : 1986 Importance : 107 f. Présentation : ill. Format : 28 cm Note générale : Mémoire de Master : Electrotechnique : New Jersey, Stevens Institute of technology : 1986 Bibliogr. f. 108 - 110 Langues : Anglais (eng) Mots-clés : Sampling  rate  alteration Two-dimensional  signals Filtering  techniques Non-recursive  implementations Dimensional  interpolattion  Digital  filter Index. décimale : Ms00786 Résumé : The problem of sampling rate alteration of deterministic two-dimensional signals is addressed on the basis of frequency domain description of the signal. It is shown that the problem can be formulated in such a way that a solution can be obtained via filtering techniques known for one-dimensional signals. Non-recursive implementations of such interpolation and decimation filters are investigated. The resulting filter structures can potentially be implemented in parallel and/or pipelined architecture for fast real time applications. Experiments with digitized images are also reported to demonstrate the performance of the designed interpolation and decimation filters. Two-dimensional sampling rate alteration via one-dimensional techniques [texte imprimé] / Omrani, Mabrouk, Auteur ; B. Basu, Directeur de thèse . - Castle point, Hoboken, New Jersey : Stevens Institute of Technology, 1986 . - 107 f. : ill. ; 28 cm. Mémoire de Master : Electrotechnique : New Jersey, Stevens Institute of technology : 1986 Bibliogr. f. 108 - 110 Langues : Anglais (eng) Mots-clés : Sampling  rate  alteration Two-dimensional  signals Filtering  techniques Non-recursive  implementations Dimensional  interpolattion  Digital  filter Index. décimale : Ms00786 Résumé : The problem of sampling rate alteration of deterministic two-dimensional signals is addressed on the basis of frequency domain description of the signal. It is shown that the problem can be formulated in such a way that a solution can be obtained via filtering techniques known for one-dimensional signals. Non-recursive implementations of such interpolation and decimation filters are investigated. The resulting filter structures can potentially be implemented in parallel and/or pipelined architecture for fast real time applications. Experiments with digitized images are also reported to demonstrate the performance of the designed interpolation and decimation filters.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms00786	Ms00786	Papier	Bibliothèque centrale	Mémoire de Master	Disponible

Documents numériques

OMRANI.Mabrouk.pdf URL

Prediction of a given axial compressor performance using the radial equillibrium equation / Zigh, Abdelghani 

Public ISBD Titre : Prediction of a given axial compressor performance using the radial equillibrium equation Type de document : texte imprimé Auteurs : Zigh, Abdelghani, Auteur ; R. B. Cole, Directeur de thèse ; F. Sisto, Directeur de thèse Editeur : Stevens Institute of Technology Année de publication : 1986 Importance : 57 f. Présentation : ill. Format : 27 cm. Note générale : Mémoire de Master : Génie Mécanique : New Jersey, Stevens Institute of Technology : 1986 Annexe f. 59 - 77 . Bibliogr. f. 78 Langues : Anglais (eng) Mots-clés : Radial  equilibrium Axial  Compressor Tangential  velocity Equilibrium  equation Index. décimale : Ms00886 Résumé : An alternative basis is established for the prediction of an existing single stage axial compressor with a specified geometry. The distribution of tangential velocity are specified as functions of the radius; Vu = f(r). The axial velocites, and other variables that would exist upstream and downstream are then obtained using the radial equilibrium equation (R.E.E.). Some correlations, wich are based on experimental observation, are used to specify some variables. The performance map based on the R.E.E. for an incompressible fluid is obtained, i.e., pressure ratio vs. flow rate and efficiency vs. flow rate, for two rotational speeds, 3000 R.P.M. and 724 R.P.M. Experimental data was taken for 724 R.P.M. and a comparison was then made between the obtained theoretical and experimental maps. Prediction of a given axial compressor performance using the radial equillibrium equation [texte imprimé] / Zigh, Abdelghani, Auteur ; R. B. Cole, Directeur de thèse ; F. Sisto, Directeur de thèse . - Castle point, Hoboken, New Jersey : Stevens Institute of Technology, 1986 . - 57 f. : ill. ; 27 cm. Mémoire de Master : Génie Mécanique : New Jersey, Stevens Institute of Technology : 1986 Annexe f. 59 - 77 . Bibliogr. f. 78 Langues : Anglais (eng) Mots-clés : Radial  equilibrium Axial  Compressor Tangential  velocity Equilibrium  equation Index. décimale : Ms00886 Résumé : An alternative basis is established for the prediction of an existing single stage axial compressor with a specified geometry. The distribution of tangential velocity are specified as functions of the radius; Vu = f(r). The axial velocites, and other variables that would exist upstream and downstream are then obtained using the radial equilibrium equation (R.E.E.). Some correlations, wich are based on experimental observation, are used to specify some variables. The performance map based on the R.E.E. for an incompressible fluid is obtained, i.e., pressure ratio vs. flow rate and efficiency vs. flow rate, for two rotational speeds, 3000 R.P.M. and 724 R.P.M. Experimental data was taken for 724 R.P.M. and a comparison was then made between the obtained theoretical and experimental maps.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms00886	Ms00886	Papier	Bibliothèque centrale	Mémoire de Master	Disponible

Documents numériques

ZIGH.Abdelghani.pdf URL