Programvaredefinert radio

Programvaredefinert radio er et radiokommunikasjonssystem der deler av signalbehandlingen blir realisert med programvare. Ofte dreier det seg om funksjoner som tidligere vanligvis har blitt implementert ved hjelp av elekroniske kretser, disse blir her implementert av programmvare på en personlig datamaskin, eller i et innebygd system.[1]

Konseptet innebærer at operasjoner som miksing og filtrering gjøres digitalt i programvare, i tillegg til signalbehandling som deteksjon og modulasjon/demodulasjon osv. Programvaredefinert radio gir langt mer fleksible systemer ettersom radioen kan omprogrammeres til å bruke andre modulasjonsmetoder (bølgeformer) eller frekvensområder.

Programvaredefinert radio blir blant annet brukt i mobiltelefoner, trådløse datanett, digitalt fjernsyn og -radio.

Se også

Referanser

  1. ^ Software Defined Radio: Architectures, Systems and Functions (Markus Dillinger, Kambiz Madani, Nancy Alonistioti) side xxxiii (Wiley & Sons, 2003, ISBN 0-470-85164-3)
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