(1) Umthombo wekhowudi kunye nokuguqula iikhowudi
Imisebenzi emibini esisiseko: enye kukuphucula ukusebenza kakuhle kokudluliselwa kolwazi, oko kukuthi, ngokusebenzisa uhlobo oluthile lweteknoloji yoxinzelelo lwekhowudi yokuzama ukunciphisa inani leesimboli ukunciphisa izinga lesimboli. Okwesibini kukugqiba ukuguqulwa kwe-analog / digital (A / D), oko kukuthi, xa umthombo wolwazi unika uphawu lwe-analog, i-encoder yomthombo iyayiguqula ibe ngumqondiso wedijithali ukufezekisa ukuhanjiswa kwedijithali yesignali ye-analog.
(2) Ukufakwa kweekhowudi kwijelo kunye nokudibanisa
Umsebenzi: Ulawulo lwempazamo. Isiginali yedijithali iya kuchaphazeleka ingxolo kunye nezinye iimpazamo kwinkqubo yokuhambisa. Ukuze kuncitshiswe iimpazamo, i-encoder yesiteshi kunye nolwazi oludlulisiweyo longeza amacandelo okukhusela (izinto zokulawula) ngokwemigaqo ethile yokwenza into ebizwa ngokuba yi-"anti-interference coding". I-decoder yeshaneli ekupheleni kokufumana i-decodes ngokwemigaqo ehambelanayo ye-inverse ukufumana okanye ukulungisa iimpazamo kunye nokuphucula ukuthembeka kwenkqubo yonxibelelwano.
(3) Uguqulelo oluntsonkothileyo kunye noguqulelo oluntsonkothileyo
Ukuze kuqinisekiswe ukukhuselwa kolwazi olugqithisiweyo, ukulandelelana kwedijithali kuphazamiseka ngokufanelekileyo ngokugqithiswa, oko kukuthi, igama eligqithisiweyo longezwa, le nkqubo ibizwa ngokuba yi-encryption. Ukubuyisela kwakhona umyalezo wokuqala kukuguqulelwa kwikhowudi.
(4) Ukumodareyithwa kwedijithali kunye nokuchithwa
Ukumodareyitha kweDijithali: I-spectrum ye-frequency ye-digital baseband signal ihanjiswe kwi-frequency ephezulu ukuze yenze isignali yonxibelelwano yebhendi efanelekileyo yokudluliselwa kwitshaneli. Ekupheleni kokufumana, umqondiso we-digital baseband unokubuyiselwa ngokuchithwa okuhambelanayo okanye ukuchithwa okungahambelaniyo.
(5) Ungqamaniso
Ulungelelwaniso: Kukugcina imiqondiso kwiziphelo zombini zokufumana kunye nokufumana inyathelo kunye nomnye ngexesha, kwaye kuyimfuneko yokuqinisekisa umsebenzi ocwangcisiweyo, ochanekileyo kunye nothembekileyo wenkqubo yonxibelelwano lwedijithali.
Le yiShenzhen HDV phoelectron Technology Ltd. ukukuzisela malunga nenqaku elithi "imodeli yenkqubo yonxibelelwano", ngethemba lokukunceda, iShenzhen HDV phoelectron Technology Ltd. yimveliso ekhethekileyo yabavelisi bezixhobo zonxibelelwano, iimveliso zonxibelelwano ezishushu zenkampani zezi:I-ONUuthotho, uthotho lwe-transceiver,OLTseries, kodwa kwakhona imveliso yothotho imodyuli, ezifana: Unxibelelwano imodyuli optical, imodyuli yonxibelelwano optical, network imodyuli optical, imodyuli yonxibelelwano optical, imodyuli ifayibha optical, Ethernet imodyuli ifayibha optical, njl., inokubonelela ngenkonzo ehambelanayo esemgangathweni kubasebenzisi abahlukeneyo ' iimfuno, wamkele utyelelo lwakho.