Kweli nqaku ndiza kuthetha ngeNkqubo yoNxibelelwano iModeli kwiinkcukacha zibandakanya iinxalenye zabo ze-5, (1) ikhowudi yomthombo kunye ne-decoding, (2) i-Encoding kunye ne-decoding of channels, (3) i-Encryption kunye ne-decryption, (4) i-modulation ye-Digital kunye ukuthotywa, (5) Ungqamaniso.Masingene nzulu...
Imodeli yeNkqubo yoNxibelelwano lwe-Analog
Imodeli yeNkqubo yoNxibelelwano lweDijithali
(1) Umthombo wekhowudi kunye nokuguqula iikhowudi:
Imisebenzi emibini esisiseko: enye kukuphucula ukusebenza kakuhle kokudluliselwa kolwazi, oko kukuthi, ukunciphisa inani leesimboli zokunciphisa izinga leesimboli ngokusebenzisa iteknoloji ethile yokucinezela ikhowudi.Okwesibini kukugqiba uguqulo lwe-analogue/digital (A/D).Oko kukuthi, xa umthombo wolwazi unika isignali ye-analogue, i-encoder yomthombo iyayiguqula ibe yisignali yedijithali ukuqonda ukuhanjiswa kwedijithali yesignali ye-analogue.
(2) Ukufakwa kweekhowudi kunye nokwenziwa kweekhowudi kwiitshaneli:
Umsebenzi: Ukwenza ulawulo lwemposiso.Imiqondiso yedijithali inokuchaphazeleka yingxolo kunye nezinye iimpazamo ngexesha lothumelo.Ukuze kuncitshiswe iimpazamo, i-encoder yesiteshi kunye neempawu zolwazi ezidlulisiweyo zongeza amacandelo okukhusela (iimpawu zokulawula) ngokwemigaqo ethile ukwenza oko kuthiwa "i-coding anti-interference coding.".Idikhowuda yesitishi ekupheleni kokufumana idikhowuwudi ngokusekelwe kwimigaqo echaseneyo naleyo isekupheleni kokuthumela.Ifumana iimpazamo okanye izilungise, nto leyo eyenza inkqubo yonxibelelwano ithembeke ngakumbi.
(3) Uguqulelo oluntsonkothileyo kunye noguqulelo oluntsonkothileyo:
Ukuze kuqinisekiswe ukukhuselwa kolwazi olugqithisiweyo, ulandelelwano lwedijithali olugqithisiweyo lutshitshiswa ngokufanelekileyo-oko kukuthi, igama lokugqitha liyongezwa.Le nkqubo ibizwa ngokuba yi-encryption.Ukubuyisela ulwazi lokuqala kukuguqulelwa kwikhowudi.
(4) Ukumodareyithwa kwedijithali kunye nokudilizwa:
Ukumodareyitha kweDijithali: I-spectrum ye-digital baseband signal itshintshelwe kwii-frequencies eziphezulu ukuze zenze umqondiso we-bandpass olungele ukuhanjiswa kwetshaneli.Ekupheleni kokufumana, isignali ye-digital baseband inokubuyiselwa ngokusebenzisa i-demodulation ehambelanayo okanye i-demodulation engahambelaniyo.
(5) Ungqamaniso:
Ulungelelwaniso: Kukugcina izibonakaliso kuzo zombini iziphelo ze-transceiver ezivumelanisiweyo ngexesha, kwaye kuyimfuneko yokuqinisekisa ukucwangciswa, ngokuchanekileyo, kunye nokusebenza okuthembekileyo kwenkqubo yonxibelelwano lwedijithali.
Eli nqaku malunga "neModeli yeNkqubo yoNxibelelwano" eziswe kuwe nguShenzhen HDV phoelectron Technology Co., Ltd. ithemba eli nqaku linokukunceda ukwandisa ulwazi lwakho.Ngaphandle kweli nqaku ukuba ujonge inkampani elungileyo yomenzi wezixhobo zonxibelelwano lwefiber onokuthi uyithathele ingqalelongathi.
Shenzhen HDV phoelectron Technology Co., Ltd.ikakhulu ngumvelisi weemveliso zonxibelelwano.Okwangoku, izixhobo eziveliswayo zigubungela iONU series, uthotho lwemodyuli yokubona, OLT series, kwayetransceiver series.Sinokubonelela ngeenkonzo ezilungiselelwe iimeko ezahlukeneyo.ezinokuthi zisetyenziselwe ezahlukeneyo Nika inkonzo ehambelanayo yomgangatho ophezulu ngokweemfuno zabasebenzisi.Wamkelekile ukubabonisana.