Kulesi sihloko ngizokhuluma nge-Communication System Model ngemininingwane ihlanganisa izingxenye zayo ezi-5, (1) Ukubhala amakhodi komthombo kanye nokukhishwa kwamakhodi, (2) Ukubhala ngekhodi nokukhishwa kwamakhodi kwamashaneli, (3) Ukubethela nokukhipha ukubethela, (4) Ukushintshwa kwedijithali kanye ukwehlisa, (5) Ukuvumelanisa.Masingene sijule...
Imodeli Yesistimu Yokuxhumana Ye-Analog
Imodeli Yesistimu Yokuxhumana Kwedijithali
(1) Umthombo wamakhodi nokuqopha:
Imisebenzi emibili eyisisekelo: eyodwa iwukuthuthukisa ukusebenza kahle kokudluliswa kolwazi, okungukuthi, ukunciphisa inani lezimpawu ukuze kuncishiswe izinga lezimpawu ngobuchwepheshe obuthile bokufaka amakhodi ngokucindezela.Okwesibili ukuqedela ukuguqulwa kwe-analogue/digital (A/D).Okusho ukuthi, lapho umthombo wolwazi unikeza isignali ye-analogue, isifaki khodi somthombo siyiguqulela kusignali yedijithali ukuze sibone ukudluliswa kwedijithali kwesiginali ye-analogue.
(2) Ukubhala ngekhodi nokuqopha amashaneli:
Umsebenzi: Ukwenza ukulawula iphutha.Amasignali edijithali angase athintwe umsindo namanye amaphutha ngesikhathi sokudlulisela.Ukuze kuncishiswe amaphutha, isifaki khodi sesiteshi nezimpawu zolwazi oludluliswayo zengeza izingxenye zokuvikela (izimpawu zokugada) ngokuvumelana nemithetho ethile ukuze zakhe lokho okubizwa ngokuthi “ikhodi yokunqanda ukuphazamiseka.”.Idikhoda yesiteshi ekugcineni ikhipha amakhodi ngokusekelwe emithethweni ephambene naleyo ekugcineni kokuthumela.Ithola amaphutha noma iwalungise, okwenza uhlelo lwezokuxhumana luthembeke kakhulu.
(3) Ukubethela nokususa ukubethela:
Ukuze kuqinisekiswe ukuvikeleka kolwazi oludlulisiwe, ukulandelana kwedijithali okudlulisiwe kuklwejwa ngokwenziwa—okungukuthi, iphasiwedi iyengezwa.Le nqubo ibizwa ngokuthi ukubethela.Ukubuyisela ulwazi lwangempela wukukhipha ukubethela.
(4) Ukushintshashintsha kwedijithali nokwehliswa kwenani:
Ukushintshashintsha kwedijithali: I-spectrum yesignali ye-baseband yedijithali ishintshelwa kumafrikhwensi aphezulu ukuze kwakhe isignali yebhendi efanele ukudluliselwa kwesiteshi.Ekupheleni kokwamukela, isignali ye-baseband yedijithali ingabuyiselwa kusetshenziswa ukwehlisa okuhambisanayo noma ukudilizwa okungahlangani.
(5) Ukuvumelanisa:
Ukuvumelanisa: Kuwukugcina amasignali emikhawulweni yomibili ye-transceiver evumelanisiwe ngesikhathi, futhi kuyimfuneko yokuqinisekisa ukusebenza okuhlelekile, okunembile, nokuthembekile kohlelo lokuxhumana lwedijithali.
Lesi isihloko esithi "Imodeli Yesistimu Yokuxhumana" olethwe kuwe yi-Shenzhen HDV phoelectron Technology Co., Ltd. ngethemba ukuthi lesi sihloko singakusiza ukukhulisa ulwazi lwakho.Ngaphandle kwalesi sihloko uma ufuna inkampani enhle yabakhiqizi bemishini yokuxhumana ye-fiber ongase uyicabangeleMayelana NATHI.
I-Shenzhen HDV phoelectron Technology Co., Ltd.ikakhulukazi umkhiqizi wemikhiqizo yezokuxhumana.Njengamanje, imishini ekhiqizwayo ihlanganisaUchungechunge lwe-ONU, optical module uchungechunge, Uchungechunge lwe-OLT, futhiuchungechunge lwe-transceiver.Singahlinzeka ngezinsizakalo ezenziwe ngezifiso ezimweni ezahlukahlukene.ezingasetshenziselwa ezahlukene Nikeza isevisi ehambisanayo yekhwalithi ephezulu ngokuya ngezidingo zabasebenzisi.Wamukelekilebonisana.