{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0542"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0542","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΜΕΛΕΤΗ ΚΑΙ ΑΞΙΟΛΟΓΗΣΗ ΤΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ Μ-ARY ΣΥΜΒΑΤΩΝ PSK ΣΥΣΤΗΜΑΤΩΝ ΨΗΦΙΑΚΗΣ ΔΙΑΜΟΡΦΩΣΗΣ ΜΙΚΡΟΚΥΜΑΤΙΚΩΝ ΔΟΡΥΦΟΡΙΚΩΝ ΖΕΥΞΕΩΝ ΠΑΡΟΥΣΙΑ ΠΑΡΕ...","abstract":"THE PERFORMANCE OF M-ARY DIGITAL COMMUNICATION SYSTEMS OPERATING IN ENVIRONMENTS CHARACTERIZED BY THE PRESENCE OF GAUSSIAN NOISE, INTERFERENCE AND/OR FADING HAS BEEN EXTENSIVELY ANALYSED. HOWEVER IT IS WELL KNOWN THAT CERTAIN COMPONENTS OF NOISE ORIGINATING IN VARIOUS COMMUNICATION CHANNELS OF TEN EXHIBIT IMPULSIVECHARACTERISTICS, I.E. BURSTS OF LARGE AMPLITUDE IN COMPARISON TO THE VMS LEVELOF THE NOISE. IN THE PRESENT WORK THE PERFORMANCE OF M-ARY CPSK SYSTEMS, IN THE PRESENCE OF A REALISTIC ADDITIVE COMBINATION OF GAUSSIAN AND IMPULSIVE NOISE IS ATTEMPTED. THE IMPULSIVE NOISE MODEL EMPLOYED, GIVES GOOD DESCRIPTION OF SOME REAL PHYSICAL SITUATIONS, SUCH AS MAN-MADE AND ATMOSPHERIC IMPULSIVE NOISE. AMATHEMATICAL EXPRESSION THAT DESCRIBES WELL SUCH PHYSICAL ENVIRONMENTS, CONSISTS OF A TRAIN OF DELTA FUNCTION IMPULSES OF RANDOM AMPLITUDE, OCCURING AT POISSON DISTRIBUTED TIMES IN A GAUSSIAN NOISE BACKGROUND. (SHORTENED)","abstract_html":"THE PERFORMANCE OF M-ARY DIGITAL COMMUNICATION SYSTEMS OPERATING IN ENVIRONMENTS CHARACTERIZED BY THE PRESENCE OF GAUSSIAN NOISE, INTERFERENCE AND/OR FADING HAS BEEN EXTENSIVELY ANALYSED. HOWEVER IT IS WELL KNOWN THAT CERTAIN COMPONENTS OF NOISE ORIGINATING IN VARIOUS COMMUNICATION CHANNELS OF TEN EXHIBIT IMPULSIVECHARACTERISTICS, I.E. BURSTS OF LARGE AMPLITUDE IN COMPARISON TO THE VMS LEVELOF THE NOISE. IN THE PRESENT WORK THE PERFORMANCE OF M-ARY CPSK SYSTEMS, IN THE PRESENCE OF A REALISTIC ADDITIVE COMBINATION OF GAUSSIAN AND IMPULSIVE NOISE IS ATTEMPTED. THE IMPULSIVE NOISE MODEL EMPLOYED, GIVES GOOD DESCRIPTION OF SOME REAL PHYSICAL SITUATIONS, SUCH AS MAN-MADE AND ATMOSPHERIC IMPULSIVE NOISE. AMATHEMATICAL EXPRESSION THAT DESCRIBES WELL SUCH PHYSICAL ENVIRONMENTS, CONSISTS OF A TRAIN OF DELTA FUNCTION IMPULSES OF RANDOM AMPLITUDE, OCCURING AT POISSON DISTRIBUTED TIMES IN A GAUSSIAN NOISE BACKGROUND. (SHORTENED)","abstract_has_math":false,"creators":["Κοσμόπουλος, Σάββας","Kosmopoulos, Savvas"],"institution":"Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1987,"date_issued":"1987","date_published":"1987","updated_at":"2026-07-24T02:25:21Z","subjects":["COCHANNEL INTERFERENCE","EVALUATION OF COMMUNICATION SYSTEMS","FOURIER-BESSEL SERIES","GAUSSIAN NOISE","Impulsive noise","LOGNORMAL STATISTICAL DISTRIBUTION","M-ARY COHERENT DIGITAL MODULATIONS","MICROWAVE TERRESTRIAL LINKS","PROBABILITY OF ERROR","SATELLITE LINKS","ΓΚΑΟΥΣΙΑΝΟΣ ΘΟΡΥΒΟΣ","ΔΟΡΥΦΟΡΙΚΕΣ ΖΕΥΞΕΙΣ","Κρουστικός θόρυβος","ΛΟΓΟΚΑΝΟΝΙΚΗ ΣΤΑΤΙΣΤΙΚΗ ΚΑΤΑΝΟΜΗ","ΜΙΚΡΟΚΥΜΑΤΙΚΕΣ ΕΠΙΓΕΙΕΣ ΖΕΥΞΕΙΣ","ΠΙΘΑΝΟΤΗΤΑ ΛΑΘΟΥΣ","ΣΕΙΡΕΣ FOURIER-BESSEL","ΣΥΝΚΑΝΑΛΕΣ ΠΑΡΕΜΒΟΛΕΣ","Engineering and Technology","Electrical Engineering, Electronic Engineering, Information Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Ηλεκτρολόγου Μηχανικού, Ηλεκτρονικού Μηχανικού, Μηχανικού Η/Υ"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0542"],"render_values":[{"text":"10.12681/eadd/0542","href":"https://doi.org/10.12681/eadd/0542","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0542","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Κοσμόπουλος, Σάββας","Kosmopoulos, Savvas"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1987"]},{"key":"dc:publisher","label":"Institution","values":["Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)","Aristotle University Of Thessaloniki (AUTH)"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["COCHANNEL INTERFERENCE","EVALUATION OF COMMUNICATION SYSTEMS","FOURIER-BESSEL SERIES","GAUSSIAN NOISE","Impulsive noise","LOGNORMAL STATISTICAL DISTRIBUTION","M-ARY COHERENT DIGITAL MODULATIONS","MICROWAVE TERRESTRIAL LINKS","PROBABILITY OF ERROR","SATELLITE LINKS","ΓΚΑΟΥΣΙΑΝΟΣ ΘΟΡΥΒΟΣ","ΔΟΡΥΦΟΡΙΚΕΣ ΖΕΥΞΕΙΣ","Κρουστικός θόρυβος","ΛΟΓΟΚΑΝΟΝΙΚΗ ΣΤΑΤΙΣΤΙΚΗ ΚΑΤΑΝΟΜΗ","ΜΙΚΡΟΚΥΜΑΤΙΚΕΣ ΕΠΙΓΕΙΕΣ ΖΕΥΞΕΙΣ","ΠΙΘΑΝΟΤΗΤΑ ΛΑΘΟΥΣ","ΣΕΙΡΕΣ FOURIER-BESSEL","ΣΥΝΚΑΝΑΛΕΣ ΠΑΡΕΜΒΟΛΕΣ","Engineering and Technology","Electrical Engineering, Electronic Engineering, Information Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Ηλεκτρολόγου Μηχανικού, Ηλεκτρονικού Μηχανικού, Μηχανικού Η/Υ"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0542","http://hdl.handle.net/10442/hedi/0542"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE PERFORMANCE OF M-ARY DIGITAL COMMUNICATION SYSTEMS OPERATING IN ENVIRONMENTS CHARACTERIZED BY THE PRESENCE OF GAUSSIAN NOISE, INTERFERENCE AND/OR FADING HAS BEEN EXTENSIVELY ANALYSED. HOWEVER IT IS WELL KNOWN THAT CERTAIN COMPONENTS OF NOISE ORIGINATING IN VARIOUS COMMUNICATION CHANNELS OF TEN EXHIBIT IMPULSIVECHARACTERISTICS, I.E. BURSTS OF LARGE AMPLITUDE IN COMPARISON TO THE VMS LEVELOF THE NOISE. IN THE PRESENT WORK THE PERFORMANCE OF M-ARY CPSK SYSTEMS, IN THE PRESENCE OF A REALISTIC ADDITIVE COMBINATION OF GAUSSIAN AND IMPULSIVE NOISE IS ATTEMPTED. THE IMPULSIVE NOISE MODEL EMPLOYED, GIVES GOOD DESCRIPTION OF SOME REAL PHYSICAL SITUATIONS, SUCH AS MAN-MADE AND ATMOSPHERIC IMPULSIVE NOISE. AMATHEMATICAL EXPRESSION THAT DESCRIBES WELL SUCH PHYSICAL ENVIRONMENTS, CONSISTS OF A TRAIN OF DELTA FUNCTION IMPULSES OF RANDOM AMPLITUDE, OCCURING AT POISSON DISTRIBUTED TIMES IN A GAUSSIAN NOISE BACKGROUND. (SHORTENED)","Η ΑΞΙΟΛΟΓΗΣΗ ΣΥΜΠΕΡΙΦΟΡΑΣ M-ARY ΨΗΦΙΑΚΩΝ ΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΩΝ ΣΥΣΤΗΜΑΤΩΝ, ΤΑ ΟΠΟΙΑΛΕΙΤΟΥΡΓΟΥΝ ΣΕ ΠΕΡΙΒΑΛΛΟΝΤΑ ΛΕΥΚΟΥ ΘΟΡΥΒΟΥ, ΠΑΡΕΜΒΟΛΩΝ 'Η ΚΑΙ ΔΙΑΛΗΨΕΩΝ, ΕΙΝΑΙΓΝΩΣΤΗ ΑΠΟ ΚΑΙΡΟ. ΠΑΡ'ΟΛΑ ΑΥΤΑ ΟΜΩΣ, ΕΙΝΑΙ ΗΔΗ ΕΥΡΕΩΣ ΓΝΩΣΤΟ ΟΤΙ Ο ΘΟΡΥΒΟΣ ΠΟΥΠΑΡΕΜΒΑΛΛΕΤΑΙ ΣΕ ΕΝΑ ΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΟ ΚΑΝΑΛΙ ΠΑΡΟΥΣΙΑΖΕΙ ΕΠΙ ΠΛΕΟΝ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ ΥΨΗΛΗΣ ΚΡΟΥΣΤΙΚΟΤΗΤΑΣ. ΣΤΗΝ ΠΑΡΟΥΣΑ ΕΡΓΑΣΙΑ ΠΟΛΥΕΠΙΠΕΔΑ M-ARY CPSK ΣΥΣΤΗΜΑΤΑ ΨΗΦΙΑΚΗΣ ΔΙΑΜΟΡΦΩΣΗΣ ΑΞΙΟΛΟΓΟΥΝΤΑΙ ΠΑΡΟΥΣΙΑ ΕΝΟΣ ΜΙΓΜΑΤΟΣ ΛΕΥΚΟΥ ΓΚΑΟΥΣΙΑΝΟΥ ΚΑΙ ΚΡΟΥΣΤΙΚΟΥ ΘΟΡΥΒΟΥ. Ο ΚΡΟΥΣΤΙΚΟΣ ΘΟΡΥΒΟΣ ΜΟΝΤΕΛΟΠΟΙΕΙΤΑΙ ΑΠΟ ΜΙΑ ΑΚΟΛΟΥΘΙΑ ΚΡΟΥΣΤΙΚΩΝ ΔΕΛΤΑ ΣΥΝΑΡΤΗΣΕΩΝ ΜΕ ΤΥΧΑΙΟ ΠΛΑΤΟΣ ΚΑΙ ΚΑΤΕΝΕΜΗΜΕΝΕΣ ΚΑΤΑ POISSON ΣΤΟΝ ΧΡΟΝΟ. ΤΟ ΜΟΝΤΕΛΟ ΑΥΤΟ ΧΡΗΣΙΜΟΠΟΙΕΙΤΑΙ ΣΥΝΗΘΩΣ ΓΙΑ ΤΗΝ ΠΑΡΑΣΤΑΣΗ ΠΡΑΓΜΑΤΙΚΩΝΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΩΝ ΚΑΝΑΛΙΩΝ ΟΠΟΥ ΑΤΜΟΣΦΑΙΡΙΚΟΣ ΘΟΡΥΒΟΣ 'Η ΘΟΡΥΒΟΣ ΑΝΘΡΩΠΙΝΗΣ ΠΡΟΕΛΕΥΣΗΣ ΣΥΝΥΠΑΡΧΕΙ ΜΕ ΛΕΥΚΟ ΓΚΑΟΥΣΙΑΝΟ ΘΟΡΥΒΟ. (ΠΕΡΙΚΟΠΗ)"]},{"key":"dc:title","label":"Title","values":["ΜΕΛΕΤΗ ΚΑΙ ΑΞΙΟΛΟΓΗΣΗ ΤΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ Μ-ARY ΣΥΜΒΑΤΩΝ PSK ΣΥΣΤΗΜΑΤΩΝ ΨΗΦΙΑΚΗΣ ΔΙΑΜΟΡΦΩΣΗΣ ΜΙΚΡΟΚΥΜΑΤΙΚΩΝ ΔΟΡΥΦΟΡΙΚΩΝ ΖΕΥΞΕΩΝ ΠΑΡΟΥΣΙΑ ΠΑΡΕ...","M-ARY CPSK BER PERFORMANCE EVALUATION FOR SATELLITE MICROWAVE LINKS IN THE PRESENCE OF INTERFERENCE, AWGN AND IMPULSIVE NOISE"]}]}],"canonical_facts":{"dc:creator":["Κοσμόπουλος, Σάββας","Kosmopoulos, Savvas"],"dc:date":["1987"],"dc:description":["THE PERFORMANCE OF M-ARY DIGITAL COMMUNICATION SYSTEMS OPERATING IN ENVIRONMENTS CHARACTERIZED BY THE PRESENCE OF GAUSSIAN NOISE, INTERFERENCE AND/OR FADING HAS BEEN EXTENSIVELY ANALYSED. HOWEVER IT IS WELL KNOWN THAT CERTAIN COMPONENTS OF NOISE ORIGINATING IN VARIOUS COMMUNICATION CHANNELS OF TEN EXHIBIT IMPULSIVECHARACTERISTICS, I.E. BURSTS OF LARGE AMPLITUDE IN COMPARISON TO THE VMS LEVELOF THE NOISE. IN THE PRESENT WORK THE PERFORMANCE OF M-ARY CPSK SYSTEMS, IN THE PRESENCE OF A REALISTIC ADDITIVE COMBINATION OF GAUSSIAN AND IMPULSIVE NOISE IS ATTEMPTED. THE IMPULSIVE NOISE MODEL EMPLOYED, GIVES GOOD DESCRIPTION OF SOME REAL PHYSICAL SITUATIONS, SUCH AS MAN-MADE AND ATMOSPHERIC IMPULSIVE NOISE. AMATHEMATICAL EXPRESSION THAT DESCRIBES WELL SUCH PHYSICAL ENVIRONMENTS, CONSISTS OF A TRAIN OF DELTA FUNCTION IMPULSES OF RANDOM AMPLITUDE, OCCURING AT POISSON DISTRIBUTED TIMES IN A GAUSSIAN NOISE BACKGROUND. (SHORTENED)","Η ΑΞΙΟΛΟΓΗΣΗ ΣΥΜΠΕΡΙΦΟΡΑΣ M-ARY ΨΗΦΙΑΚΩΝ ΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΩΝ ΣΥΣΤΗΜΑΤΩΝ, ΤΑ ΟΠΟΙΑΛΕΙΤΟΥΡΓΟΥΝ ΣΕ ΠΕΡΙΒΑΛΛΟΝΤΑ ΛΕΥΚΟΥ ΘΟΡΥΒΟΥ, ΠΑΡΕΜΒΟΛΩΝ 'Η ΚΑΙ ΔΙΑΛΗΨΕΩΝ, ΕΙΝΑΙΓΝΩΣΤΗ ΑΠΟ ΚΑΙΡΟ. ΠΑΡ'ΟΛΑ ΑΥΤΑ ΟΜΩΣ, ΕΙΝΑΙ ΗΔΗ ΕΥΡΕΩΣ ΓΝΩΣΤΟ ΟΤΙ Ο ΘΟΡΥΒΟΣ ΠΟΥΠΑΡΕΜΒΑΛΛΕΤΑΙ ΣΕ ΕΝΑ ΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΟ ΚΑΝΑΛΙ ΠΑΡΟΥΣΙΑΖΕΙ ΕΠΙ ΠΛΕΟΝ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ ΥΨΗΛΗΣ ΚΡΟΥΣΤΙΚΟΤΗΤΑΣ. ΣΤΗΝ ΠΑΡΟΥΣΑ ΕΡΓΑΣΙΑ ΠΟΛΥΕΠΙΠΕΔΑ M-ARY CPSK ΣΥΣΤΗΜΑΤΑ ΨΗΦΙΑΚΗΣ ΔΙΑΜΟΡΦΩΣΗΣ ΑΞΙΟΛΟΓΟΥΝΤΑΙ ΠΑΡΟΥΣΙΑ ΕΝΟΣ ΜΙΓΜΑΤΟΣ ΛΕΥΚΟΥ ΓΚΑΟΥΣΙΑΝΟΥ ΚΑΙ ΚΡΟΥΣΤΙΚΟΥ ΘΟΡΥΒΟΥ. Ο ΚΡΟΥΣΤΙΚΟΣ ΘΟΡΥΒΟΣ ΜΟΝΤΕΛΟΠΟΙΕΙΤΑΙ ΑΠΟ ΜΙΑ ΑΚΟΛΟΥΘΙΑ ΚΡΟΥΣΤΙΚΩΝ ΔΕΛΤΑ ΣΥΝΑΡΤΗΣΕΩΝ ΜΕ ΤΥΧΑΙΟ ΠΛΑΤΟΣ ΚΑΙ ΚΑΤΕΝΕΜΗΜΕΝΕΣ ΚΑΤΑ POISSON ΣΤΟΝ ΧΡΟΝΟ. ΤΟ ΜΟΝΤΕΛΟ ΑΥΤΟ ΧΡΗΣΙΜΟΠΟΙΕΙΤΑΙ ΣΥΝΗΘΩΣ ΓΙΑ ΤΗΝ ΠΑΡΑΣΤΑΣΗ ΠΡΑΓΜΑΤΙΚΩΝΤΗΛΕΠΙΚΟΙΝΩΝΙΑΚΩΝ ΚΑΝΑΛΙΩΝ ΟΠΟΥ ΑΤΜΟΣΦΑΙΡΙΚΟΣ ΘΟΡΥΒΟΣ 'Η ΘΟΡΥΒΟΣ ΑΝΘΡΩΠΙΝΗΣ ΠΡΟΕΛΕΥΣΗΣ ΣΥΝΥΠΑΡΧΕΙ ΜΕ ΛΕΥΚΟ ΓΚΑΟΥΣΙΑΝΟ ΘΟΡΥΒΟ. (ΠΕΡΙΚΟΠΗ)"],"dc:identifier":["10.12681/eadd/0542","http://hdl.handle.net/10442/hedi/0542"],"dc:language":["gre"],"dc:publisher":["Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)","Aristotle University Of Thessaloniki (AUTH)"],"dc:subject":["COCHANNEL INTERFERENCE","EVALUATION OF COMMUNICATION SYSTEMS","FOURIER-BESSEL SERIES","GAUSSIAN NOISE","Impulsive noise","LOGNORMAL STATISTICAL DISTRIBUTION","M-ARY COHERENT DIGITAL MODULATIONS","MICROWAVE TERRESTRIAL LINKS","PROBABILITY OF ERROR","SATELLITE LINKS","ΓΚΑΟΥΣΙΑΝΟΣ ΘΟΡΥΒΟΣ","ΔΟΡΥΦΟΡΙΚΕΣ ΖΕΥΞΕΙΣ","Κρουστικός θόρυβος","ΛΟΓΟΚΑΝΟΝΙΚΗ ΣΤΑΤΙΣΤΙΚΗ ΚΑΤΑΝΟΜΗ","ΜΙΚΡΟΚΥΜΑΤΙΚΕΣ ΕΠΙΓΕΙΕΣ ΖΕΥΞΕΙΣ","ΠΙΘΑΝΟΤΗΤΑ ΛΑΘΟΥΣ","ΣΕΙΡΕΣ FOURIER-BESSEL","ΣΥΝΚΑΝΑΛΕΣ ΠΑΡΕΜΒΟΛΕΣ","Engineering and Technology","Electrical Engineering, Electronic Engineering, Information Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Ηλεκτρολόγου Μηχανικού, Ηλεκτρονικού Μηχανικού, Μηχανικού Η/Υ"],"dc:title":["ΜΕΛΕΤΗ ΚΑΙ ΑΞΙΟΛΟΓΗΣΗ ΤΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ Μ-ARY ΣΥΜΒΑΤΩΝ PSK ΣΥΣΤΗΜΑΤΩΝ ΨΗΦΙΑΚΗΣ ΔΙΑΜΟΡΦΩΣΗΣ ΜΙΚΡΟΚΥΜΑΤΙΚΩΝ ΔΟΡΥΦΟΡΙΚΩΝ ΖΕΥΞΕΩΝ ΠΑΡΟΥΣΙΑ ΠΑΡΕ...","M-ARY CPSK BER PERFORMANCE EVALUATION FOR SATELLITE MICROWAVE LINKS IN THE PRESENCE OF INTERFERENCE, AWGN AND IMPULSIVE NOISE"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:21Z"}