{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0217"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0217","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΣΧΕΔΙΑΣΗ ΟΙΚΟΝΟΜΙΚΩΝ F.I.R. ΦΙΛΤΡΩΝ ΓΙΑ ΣΗΜΑΤΑ ΔΙΑΜΟΡΦΩΣΗΣ Δ","abstract":"THE OBJECT OF THIS THESIS IS THE DESIGN OF ECONOMICAL FIR FILTERS FOR DELTA MODULATION SIGNALS (D.M. FILTERS). THE MOTIVATION FOR THIS RESEARCH WAS THE OUT-COME OF THE FOLLOWING TWO CONSIDERATIONS A: THE IMPLEMENTATION OF FIR FILTER IN GENERAL REQUIRES ALOT OF HARDWARE, B. THE SIMPLICITY OF THE CIRCUITS PERFORMING THE OPERATIONS OF ADDITION AND MULTIPLICATION ON D.M. SIGNALS. THUS FIR FILTERS WERE SOUGHT WHICH WOULD REQUIRE REDUCE HARDWARE FOR THEIR IMPLEMENTATIOND.M. FILTERS. THIS GOOD WAS ACHIEVED BY A SPECIAL MODIFICATION IN THE APPLICATION OF THE WINDOW METHOD. CLEARLY THE WINDOW FUNCTION IS ADJUSTED IN EACH FILTER IN SUCH A WAY THAT MOST OF ITS COEFFICIENTS ARE SIMPLY RELATED TO EACH OTHER. IT IS SHOWN THAT THIS SIMPLE RELATIONSHIP AMONG MOST OF THE FILTER COEFFICIENTS ACTUALLY 1 : 2, COUPLED WITH THE PROPERLY OF THE DELTA ADDER CIRCUIT TOGIVE HALF-SUMS OF THE UNDER ADDITION DELTA SEQUENCES LEADS TO ECONOMICAL FIR FILTER STRUCTURES.","abstract_html":"THE OBJECT OF THIS THESIS IS THE DESIGN OF ECONOMICAL FIR FILTERS FOR DELTA MODULATION SIGNALS (D.M. FILTERS). THE MOTIVATION FOR THIS RESEARCH WAS THE OUT-COME OF THE FOLLOWING TWO CONSIDERATIONS A: THE IMPLEMENTATION OF FIR FILTER IN GENERAL REQUIRES ALOT OF HARDWARE, B. THE SIMPLICITY OF THE CIRCUITS PERFORMING THE OPERATIONS OF ADDITION AND MULTIPLICATION ON D.M. SIGNALS. THUS FIR FILTERS WERE SOUGHT WHICH WOULD REQUIRE REDUCE HARDWARE FOR THEIR IMPLEMENTATIOND.M. FILTERS. THIS GOOD WAS ACHIEVED BY A SPECIAL MODIFICATION IN THE APPLICATION OF THE WINDOW METHOD. CLEARLY THE WINDOW FUNCTION IS ADJUSTED IN EACH FILTER IN SUCH A WAY THAT MOST OF ITS COEFFICIENTS ARE SIMPLY RELATED TO EACH OTHER. IT IS SHOWN THAT THIS SIMPLE RELATIONSHIP AMONG MOST OF THE FILTER COEFFICIENTS ACTUALLY 1 : 2, COUPLED WITH THE PROPERLY OF THE DELTA ADDER CIRCUIT TOGIVE HALF-SUMS OF THE UNDER ADDITION DELTA SEQUENCES LEADS TO ECONOMICAL FIR FILTER STRUCTURES.","abstract_has_math":false,"creators":["Anastassopoulos, Vassilis","Αναστασόπουλος, Βασίλειος"],"institution":"University of Patras","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1986,"date_issued":"1986","date_published":"1986","updated_at":"2026-07-24T02:25:08Z","subjects":["ΔΙΑΜΟΡΦΩΣΗ Δ","ΔΙΑΜΟΡΦΩΣΗ ΔΕΛΤΑ","ΕΛΑΤΤΩΣΗ ΥΛΙΚΟΥ","ΕΠΕΞΕΡΓΑΣΙΑ ΨΗΦΙΑΚΟΥ ΣΗΜΑΤΟΣ","Ηλεκτρονική","ΟΙΚΟΝΟΜΙΚΟ ΦΙΛΤΡΑΡΙΣΜΑ","ΨΗΦΙΑΚΑ ΦΙΛΤΡΑ {F.I.R.}","ΨΗΦΙΑΚΟ ΦΙΛΤΡΑΡΙΣΜΑ","DELTA MODULATION","DIGITAL FILTERING","Digital signal processing","ECONOMICAL FILTERING","F.I.R. FILTERS","HARDWARE REDUCTION","Φυσικές Επιστήμες","Φυσική","Natural Sciences","Physical Sciences"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0217"],"render_values":[{"text":"10.12681/eadd/0217","href":"https://doi.org/10.12681/eadd/0217","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0217","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Anastassopoulos, Vassilis","Αναστασόπουλος, Βασίλειος"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1986"]},{"key":"dc:publisher","label":"Institution","values":["University of Patras","Πανεπιστήμιο Πατρών"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["ΔΙΑΜΟΡΦΩΣΗ Δ","ΔΙΑΜΟΡΦΩΣΗ ΔΕΛΤΑ","ΕΛΑΤΤΩΣΗ ΥΛΙΚΟΥ","ΕΠΕΞΕΡΓΑΣΙΑ ΨΗΦΙΑΚΟΥ ΣΗΜΑΤΟΣ","Ηλεκτρονική","ΟΙΚΟΝΟΜΙΚΟ ΦΙΛΤΡΑΡΙΣΜΑ","ΨΗΦΙΑΚΑ ΦΙΛΤΡΑ {F.I.R.}","ΨΗΦΙΑΚΟ ΦΙΛΤΡΑΡΙΣΜΑ","DELTA MODULATION","DIGITAL FILTERING","Digital signal processing","ECONOMICAL FILTERING","F.I.R. FILTERS","HARDWARE REDUCTION","Φυσικές Επιστήμες","Φυσική","Natural Sciences","Physical Sciences"]}]},{"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/0217","http://hdl.handle.net/10442/hedi/0217"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE OBJECT OF THIS THESIS IS THE DESIGN OF ECONOMICAL FIR FILTERS FOR DELTA MODULATION SIGNALS (D.M. FILTERS). THE MOTIVATION FOR THIS RESEARCH WAS THE OUT-COME OF THE FOLLOWING TWO CONSIDERATIONS A: THE IMPLEMENTATION OF FIR FILTER IN GENERAL REQUIRES ALOT OF HARDWARE, B. THE SIMPLICITY OF THE CIRCUITS PERFORMING THE OPERATIONS OF ADDITION AND MULTIPLICATION ON D.M. SIGNALS. THUS FIR FILTERS WERE SOUGHT WHICH WOULD REQUIRE REDUCE HARDWARE FOR THEIR IMPLEMENTATIOND.M. FILTERS. THIS GOOD WAS ACHIEVED BY A SPECIAL MODIFICATION IN THE APPLICATION OF THE WINDOW METHOD. CLEARLY THE WINDOW FUNCTION IS ADJUSTED IN EACH FILTER IN SUCH A WAY THAT MOST OF ITS COEFFICIENTS ARE SIMPLY RELATED TO EACH OTHER. IT IS SHOWN THAT THIS SIMPLE RELATIONSHIP AMONG MOST OF THE FILTER COEFFICIENTS ACTUALLY 1 : 2, COUPLED WITH THE PROPERLY OF THE DELTA ADDER CIRCUIT TOGIVE HALF-SUMS OF THE UNDER ADDITION DELTA SEQUENCES LEADS TO ECONOMICAL FIR FILTER STRUCTURES.","Η ΔΙΑΤΡΙΒΗ ΑΥΤΗ ΕΧΕΙ ΑΝΤΙΚΕΙΜΕΝΟ ΤΗ ΣΧΕΔΙΑΣΗ ΟΙΚΟΝΟΜΙΚΩΝ FIR ΦΙΛΤΡΩΝ ΔΙΑΜΟΡΦΩΣΗΣ Δ. ΛΟΓΩ ΤΟΥ ΑΥΞΗΜΕΝΟΥ ΥΛΙΚΟΥ ΚΑΤΑΣΚΕΥΗΣ ΤΩΝ FIR ΦΙΛΤΡΩΝ ΚΑΙ ΛΑΜΒΑΝΟΜΕΝΗΣ ΥΠ'ΟΨΗ ΤΗΣ ΑΠΛΟΤΗΤΑΣ ΤΩΝ ΚΥΚΛΩΜΑΤΩΝ ΠΡΑΞΕΩΝ ΤΗΣ ΔΙΑΜΟΡΦΩΣΗΣ Δ, ΑΝΑΖΗΤΗΘΗΚΑΝ FIR ΦΙΛΤΡΑ ΤΑ ΟΠΟΙΑ ΝΑ ΠΑΡΟΥΣΙΑΖΟΥΝ ΟΙΚΟΝΟΜΙΚΕΣ ΔΟΜΕΣ ΟΤΑΝ ΑΥΤΑ ΠΡΑΓΜΑΤΟΠΟΙΟΥΝΤΑΙ ΩΣ ΦΙΛΤΡΑ ΔΙΑΜΟΡΦΩΣΗΣ Δ. Η ΣΧΕΔΙΑΣΗ FIR ΦΙΛΤΡΩΝ ΜΕ ΟΙΚΟΝΟΜΙΚΕΣ ΔΟΜΕΣ ΕΓΙΝΕ ΜΕΤΑ ΑΠΟ ΕΙΔΙΚΟ ΤΡΟΠΟ ΕΦΑΡΜΟΓΗΣ ΤΗΣ ΜΕΘΟΔΟΥ ΤΩΝ ΠΑΡΑΘΥΡΩΝ. ΣΕ ΚΑΘΕ ΕΝΑ ΑΠΟ ΤΑ ΣΧΕΔΙΑΖΟΜΕΝΑ ΦΙΛΤΡΑ Η ΣΥΝΑΡΤΗΣΗ ΤΟΥ ΠΑΡΑΘΥΡΟΥ ΕΙΝΑΙ ΡΥΘΜΙΖΟΜΕΝΗ ΜΕ ΤΕΤΟΙΟ ΤΡΟΠΟ ΩΣΤΕ ΤΟ ΦΙΛΤΡΟ ΝΑ ΕΧΕΙ ΤΟΥΣ ΠΕΡΙΣΣΟΤΕΡΟΥΣ ΣΥΝΤΕΛΕΣΤΕΣ ΤΟΥ ΣΧΕΤΙΖΟΜΕΝΟΥΣ ΜΕ ΤΗΝΑΠΛΗ ΣΧΕΣΗ 1 : 2. ΑΠΟΔΕΙΚΝΥΕΤΑΙ, ΑΝ ΛΗΦΘΕΙ ΥΠ'ΟΨΗ Η ΔΥΝΑΤΟΤΗΤΑ ΤΟΥ ΠΡΟΣΘΕΤΗ ΔΝΑ ΔΙΝΕΙ ΗΜΙΑΘΡΟΙΣΜΑΤΑ, ΟΤΙ Η ΣΧΕΣΗ ΑΥΤΗ ΟΔΗΓΕΙ ΣΕ ΟΙΚΟΝΟΜΙΚΕΣ ΔΟΜΕΣ ΟΤΑΝ ΤΑ ΦΙΛΤΡΑ ΑΥΤΑ ΠΡΑΓΜΑΤΟΠΟΙΟΥΝΤΑΙ ΩΣ ΦΙΛΤΡΑ ΔΙΑΜΟΡΦΩΣΗΣ Δ."]},{"key":"dc:title","label":"Title","values":["ΣΧΕΔΙΑΣΗ ΟΙΚΟΝΟΜΙΚΩΝ F.I.R. ΦΙΛΤΡΩΝ ΓΙΑ ΣΗΜΑΤΑ ΔΙΑΜΟΡΦΩΣΗΣ Δ","DESIGN OF ECONOMICAL F.I.R. FILTERS FOR DELTA-MODULATED SIGNALS"]}]}],"canonical_facts":{"dc:creator":["Anastassopoulos, Vassilis","Αναστασόπουλος, Βασίλειος"],"dc:date":["1986"],"dc:description":["THE OBJECT OF THIS THESIS IS THE DESIGN OF ECONOMICAL FIR FILTERS FOR DELTA MODULATION SIGNALS (D.M. FILTERS). THE MOTIVATION FOR THIS RESEARCH WAS THE OUT-COME OF THE FOLLOWING TWO CONSIDERATIONS A: THE IMPLEMENTATION OF FIR FILTER IN GENERAL REQUIRES ALOT OF HARDWARE, B. THE SIMPLICITY OF THE CIRCUITS PERFORMING THE OPERATIONS OF ADDITION AND MULTIPLICATION ON D.M. SIGNALS. THUS FIR FILTERS WERE SOUGHT WHICH WOULD REQUIRE REDUCE HARDWARE FOR THEIR IMPLEMENTATIOND.M. FILTERS. THIS GOOD WAS ACHIEVED BY A SPECIAL MODIFICATION IN THE APPLICATION OF THE WINDOW METHOD. CLEARLY THE WINDOW FUNCTION IS ADJUSTED IN EACH FILTER IN SUCH A WAY THAT MOST OF ITS COEFFICIENTS ARE SIMPLY RELATED TO EACH OTHER. IT IS SHOWN THAT THIS SIMPLE RELATIONSHIP AMONG MOST OF THE FILTER COEFFICIENTS ACTUALLY 1 : 2, COUPLED WITH THE PROPERLY OF THE DELTA ADDER CIRCUIT TOGIVE HALF-SUMS OF THE UNDER ADDITION DELTA SEQUENCES LEADS TO ECONOMICAL FIR FILTER STRUCTURES.","Η ΔΙΑΤΡΙΒΗ ΑΥΤΗ ΕΧΕΙ ΑΝΤΙΚΕΙΜΕΝΟ ΤΗ ΣΧΕΔΙΑΣΗ ΟΙΚΟΝΟΜΙΚΩΝ FIR ΦΙΛΤΡΩΝ ΔΙΑΜΟΡΦΩΣΗΣ Δ. ΛΟΓΩ ΤΟΥ ΑΥΞΗΜΕΝΟΥ ΥΛΙΚΟΥ ΚΑΤΑΣΚΕΥΗΣ ΤΩΝ FIR ΦΙΛΤΡΩΝ ΚΑΙ ΛΑΜΒΑΝΟΜΕΝΗΣ ΥΠ'ΟΨΗ ΤΗΣ ΑΠΛΟΤΗΤΑΣ ΤΩΝ ΚΥΚΛΩΜΑΤΩΝ ΠΡΑΞΕΩΝ ΤΗΣ ΔΙΑΜΟΡΦΩΣΗΣ Δ, ΑΝΑΖΗΤΗΘΗΚΑΝ FIR ΦΙΛΤΡΑ ΤΑ ΟΠΟΙΑ ΝΑ ΠΑΡΟΥΣΙΑΖΟΥΝ ΟΙΚΟΝΟΜΙΚΕΣ ΔΟΜΕΣ ΟΤΑΝ ΑΥΤΑ ΠΡΑΓΜΑΤΟΠΟΙΟΥΝΤΑΙ ΩΣ ΦΙΛΤΡΑ ΔΙΑΜΟΡΦΩΣΗΣ Δ. Η ΣΧΕΔΙΑΣΗ FIR ΦΙΛΤΡΩΝ ΜΕ ΟΙΚΟΝΟΜΙΚΕΣ ΔΟΜΕΣ ΕΓΙΝΕ ΜΕΤΑ ΑΠΟ ΕΙΔΙΚΟ ΤΡΟΠΟ ΕΦΑΡΜΟΓΗΣ ΤΗΣ ΜΕΘΟΔΟΥ ΤΩΝ ΠΑΡΑΘΥΡΩΝ. ΣΕ ΚΑΘΕ ΕΝΑ ΑΠΟ ΤΑ ΣΧΕΔΙΑΖΟΜΕΝΑ ΦΙΛΤΡΑ Η ΣΥΝΑΡΤΗΣΗ ΤΟΥ ΠΑΡΑΘΥΡΟΥ ΕΙΝΑΙ ΡΥΘΜΙΖΟΜΕΝΗ ΜΕ ΤΕΤΟΙΟ ΤΡΟΠΟ ΩΣΤΕ ΤΟ ΦΙΛΤΡΟ ΝΑ ΕΧΕΙ ΤΟΥΣ ΠΕΡΙΣΣΟΤΕΡΟΥΣ ΣΥΝΤΕΛΕΣΤΕΣ ΤΟΥ ΣΧΕΤΙΖΟΜΕΝΟΥΣ ΜΕ ΤΗΝΑΠΛΗ ΣΧΕΣΗ 1 : 2. ΑΠΟΔΕΙΚΝΥΕΤΑΙ, ΑΝ ΛΗΦΘΕΙ ΥΠ'ΟΨΗ Η ΔΥΝΑΤΟΤΗΤΑ ΤΟΥ ΠΡΟΣΘΕΤΗ ΔΝΑ ΔΙΝΕΙ ΗΜΙΑΘΡΟΙΣΜΑΤΑ, ΟΤΙ Η ΣΧΕΣΗ ΑΥΤΗ ΟΔΗΓΕΙ ΣΕ ΟΙΚΟΝΟΜΙΚΕΣ ΔΟΜΕΣ ΟΤΑΝ ΤΑ ΦΙΛΤΡΑ ΑΥΤΑ ΠΡΑΓΜΑΤΟΠΟΙΟΥΝΤΑΙ ΩΣ ΦΙΛΤΡΑ ΔΙΑΜΟΡΦΩΣΗΣ Δ."],"dc:identifier":["10.12681/eadd/0217","http://hdl.handle.net/10442/hedi/0217"],"dc:language":["gre"],"dc:publisher":["University of Patras","Πανεπιστήμιο Πατρών"],"dc:subject":["ΔΙΑΜΟΡΦΩΣΗ Δ","ΔΙΑΜΟΡΦΩΣΗ ΔΕΛΤΑ","ΕΛΑΤΤΩΣΗ ΥΛΙΚΟΥ","ΕΠΕΞΕΡΓΑΣΙΑ ΨΗΦΙΑΚΟΥ ΣΗΜΑΤΟΣ","Ηλεκτρονική","ΟΙΚΟΝΟΜΙΚΟ ΦΙΛΤΡΑΡΙΣΜΑ","ΨΗΦΙΑΚΑ ΦΙΛΤΡΑ {F.I.R.}","ΨΗΦΙΑΚΟ ΦΙΛΤΡΑΡΙΣΜΑ","DELTA MODULATION","DIGITAL FILTERING","Digital signal processing","ECONOMICAL FILTERING","F.I.R. FILTERS","HARDWARE REDUCTION","Φυσικές Επιστήμες","Φυσική","Natural Sciences","Physical Sciences"],"dc:title":["ΣΧΕΔΙΑΣΗ ΟΙΚΟΝΟΜΙΚΩΝ F.I.R. ΦΙΛΤΡΩΝ ΓΙΑ ΣΗΜΑΤΑ ΔΙΑΜΟΡΦΩΣΗΣ Δ","DESIGN OF ECONOMICAL F.I.R. FILTERS FOR DELTA-MODULATED SIGNALS"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:08Z"}