Izindaba

1. Ihlukaniswa ngensizakalo yezokuxhumana Ngokwezinhlobo ezahlukene zezinsiza zokuxhumana, izinhlelo zokuxhumana zingahlukaniswa zibe izinhlelo zokuxhumana ngocingo, izinhlelo zokuxhumana ngocingo, izinhlelo zokuxhumana ngedatha, izinhlelo zokuxhumana ngezithombe, njll. Ngoba umphakathi wocingo...

(1) Ukukhipha amakhodi komthombo kanye nokuqopha Imisebenzi emibili eyisisekelo: eyodwa iwukuthuthukisa ukusebenza kahle kokudluliswa kolwazi, okungukuthi, ngokusebenzisa uhlobo oluthile lobuchwepheshe bokubhala amakhodi ukuze uzame ukunciphisa inani lezimpawu ukuze kuncishiswe izinga lezimpawu. Okwesibili ukuqedela i-analog/digital (A/D) con...

Kokubili isignali nomsindo ekuxhumaneni kungathathwa njengezinqubo ezingahleliwe ezishintsha ngokuhamba kwesikhathi. Inqubo engahleliwe inezici zokuguquguquka okungahleliwe kanye nomsebenzi wesikhathi, ongachazwa ngemibono emibili ehlukene kodwa ehlobene eduze: (1) Inqubo engahleliwe i...

Imodi yokuxhumana isho imodi yokusebenza noma imodi yokudlulisa isignali phakathi kwezinhlangothi ezimbili zokuxhumana. 1. Ukuxhumana kwe-Simplex, i-half-duplex, kanye ne-full-duplex Ukuze kuxhunywe iphuzu-kuya-iphuzu, ngokuya ngesiqondiso nesikhathi sokudluliswa komlayezo, ...

Ohlelweni lokuxhumana lwedijithali, lokho owamukelayo akutholayo isamba sesiginali edlulisiwe nomsindo wesiteshi. Ukwamukela okuphelele kwamasignali edijithali kusekelwe emathubeni amancane wephutha njengombandela "ongcono kakhulu". Amaphutha acatshangelwe kulesi sahluko anga...

Umfanekiso 6-6 umdwebo webhulokhi wesistimu yokudlulisa isignali ye-digital baseband evamile. Ikakhulukazi yakhiwe ngesihlungi esithumelayo (ijeneretha yesignali yesiteshi), isiteshi, isihlungi sokwamukela kanye nesinqumo samasampula. Ukuze kuqinisekiswe umsebenzi othembekile nohlelekile wohlelo, i...