{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-VSE7OOV2/0aaae3fe-54fa-42df-b72b-ba8697c1dead/PDF","dcterms:extent":"556 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-VSE7OOV2/756dea2e-a0da-4254-9c49-aa0c69288713/TEXT","dcterms:extent":"24 KB"}],"edm:TimeSpan":{"@rdf:about":"1985-2025","edm:begin":{"@xml:lang":"en","#text":"1985"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-VSE7OOV2","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-Z2J12Z6C"},{"@xml:lang":"sl","#text":"Informacije MIDEM"}],"dcterms:issued":"2001","dc:creator":["Javornik, Tomaž","Kandus, Gorazd","Ozimek, Igor","Plevel, Srečo","Trobec, Roman"],"dc:format":[{"@xml:lang":"sl","#text":"številka:1"},{"@xml:lang":"sl","#text":"letnik:31"},{"@xml:lang":"sl","#text":"str. 33-38"}],"dc:identifier":["ISSN:0352-9045","COBISSID:15982375","URN:URN:NBN:SI:doc-VSE7OOV2"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Strokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale"},"dc:subject":[{"@xml:lang":"sl","#text":"algoritmi"},{"@xml:lang":"sl","#text":"dekodiranje"},{"@xml:lang":"sl","#text":"komunikacijski sistemi"},{"@xml:lang":"sl","#text":"mobilne naprave"},{"@xml:lang":"sl","#text":"obdelava signalov"}],"dcterms:temporal":{"@rdf:resource":"1985-2025"},"dc:title":{"@xml:lang":"sl","#text":"Viterbijev algoritem za DSP procesorje| Viterbi algorithm for DSP processors|"},"dc:description":[{"@xml:lang":"sl","#text":"Modern digital communication systems, especially mobile wireless devices, are playing more and more important role in everday life. For reliable data transmission and efficient utillisation of limited frequency spectrum resources, bandwidth-efficient modulation and coding must be employed. An important coding technique is convolutional coding with Viterbi algorithm. Modulation and coding procedures are relatively demanding for digital real-time processing and until recently they were mostly implemented in specialised integrated circuits. The development of ever more powerful general-purpose signal processors came to the point, where software implementation of those procedures is viable. This approach, known as software radio, has a number of advantages. It allows easy modification and adaptation to various communication systems and standards. In the article, the implementation of the Viterbi algorithm is described for two families of general-purpose digital signal processors, TMS320C4x and TMS320C6x. Various optimisations are presented together with resulting performance in terms of achievable bit rates and error bit rates for hard and soft Viterbi decoding"},{"@xml:lang":"sl","#text":"Sodobni digitalni komunikacijski sistemi zlasti mobilne radijske naprave, so v vse širši uporabi. Za kvaliteten prenos podatkov in učinkovito izrabo razpoložljivega radijskega frekvenčnega spektra so potrebni kvalitetni modulacijski in kodirni postopki. Ena od pomembnih tehnik kodiranja je konvolucijsko kodiranje in dekodiranje z uporabo Viterbijevega algoritma. Modulacijski in kodirni postopki so relativno zahtevni za obdelavo v realnem času in so se običajno izvajali v specializiranih vezjih. Razvoj vedno bolj zmogljivih univerzalnih signalnih procesorjev pa omogoča programsko izvedbo teh postopkov in s tem koncept t.i. programljivega radia. Ta prinaša razne prednosti, med drugim enostavno spreminjanje in s tem prilagodljivost raznim komunikacijskim sistemom in standardom. V članku je predstavljena izvedba Viterbijevega algoritma za dve družini univerzalnih signalnih procesorjev TMS320C4x in TMS320C6x. Opisani so razni načini optimizacije in pohitritve Viterbijevega algoritma ter predstavljene dosežene zmogljivosti algoritma pri izvajanju na teh dveh procesorjih takoza trdo kot mehko dekodiranje"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:doc-VSE7OOV2","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-VSE7OOV2"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-VSE7OOV2/0aaae3fe-54fa-42df-b72b-ba8697c1dead/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Strokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:doc-VSE7OOV2/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-VSE7OOV2"}}}}