
modulation kramam

digital communication pathakam yokka modulation kramam daanini upayoginchi prasaram cheyagala vividha chihnala sankhya dwara nirnayinchabadutundi.
modulation kramaanni digital modulationlaku matrame nirvachinchavacchu. digital modulation yokka saralamaina roopaalu rendava kramamlo untaayi, endukante avi rendu chihnalanu matrame prasaram cheyagalavu (saadhaaranamgaa "0" mariyu "1" ledhaa "-1" mariyu "1" gaa suuchistaaru). vaatini "binary shift keying" (bii. ess. keey) anie pilustaaru.
4 mariyu anthakante ekkuva kramam unna modulationlanu saadhaaranamgaa hye-arder modulationluga pilustaaru. veetiki udaaharanalu "quadrature faze shift keying" (qpsk) mariyu m-ary "quadrature amplitude modulation" (m-qam) gaa daani saadhaaraneekarana.
endukante ippatike unna computerlu mariyu automation vyavasthalu binary logicpy aadharapadi untaayi, chaalaa varaku modulations rendu power gala aardarnu kaligi untayih 2,4,8,16 modalainavi. ayithe suutrapraayamgaa, modulation yokka kramam okati kante ekkuva unna edainaa puurnaamkam kaavacchu.

