Mufananidzo 6-6 ibhuroka dhizaini yeyakajairwa dhijitari baseband chiratidzo chekufambisa system. Iyo inonyanya kuumbwa nekutumira sefa (chiteshi chiratidzo jenareta), chiteshi, kugamuchira sefa uye sampling sarudzo. Kuti uve nechokwadi chebasa rakavimbika uye rakarongeka rehurongwa, panofanirawo kunge paine synchronous system.
Mabasa ebhokisi rega rega mumufananidzo uye maitiro ekutapurirana echiratidzo anotsanangurwa seizvi:
(1) Chigero chiratidzo jenareta (kutumira sefa). Basa rayo ndere kugadzira baseband signal waveform yakakodzera kutapurirana chiteshi. Nekuti iyo yekuisa kazhinji ikodhi yekutumira inogadzirwa nekodhi encoder, inoenderana basic waveform inowanzoita rectangular pulse, uye spectrum yayo yakakura kwazvo, iyo isingakodzeri kutapurirana. Iyo yekufambisa sefa inoshandiswa kudzvanya yekupinza siginecha frequency bhendi uye kushandura kodhi yekufambisa kuita baseband signal waveform yakakodzera kutapurirana chiteshi.
(2) Channel. Iyo svikiro inobvumira baseband masaini kuti apfuure, kazhinji chiteshi chine waya, senge twisted pair, coaxial tambo, etc. Hunhu hwekutapurirana hwechiteshi kazhinji hahusangane nemamiriro ekukanganisa-isina kutapurirana, saka zvinokonzeresa kukanganisa. ye transmission waveform. Pamusoro pezvo, chiteshi chinounza ruzha n (t) uye inofungidzira kuti iGaussian chena ruzha ine zvinoreva zero.
(3) Kugamuchira sefa. Iyo inoshandiswa kugashira chiratidzo, kusefa kunze kwechiteshi ruzha uye kumwe kupindira zvakanyanya sezvinobvira, kuenzanisa maitiro echiteshi, uye kuita inobuda baseband waveform inoenderana nesampling sarudzo.
(4) Sampling sarudzo. Pasi pemashure ekusagutsikana kwekutapurirana maitiro uye ruzha, iyo yakabuda waveform yeinogamuchira sefa inotorwa panguva yakatarwa (inodzorwa nechinguva chidiki pulse) kudzoreredza kana kuvandudza chiratidzo chebhendi.
(5) Nguva yekupuruzira uye synchronous kutorwa. Iyo bit time pulse inoshandiswa kuita sampling inotorwa kubva kune yakagamuchirwa siginecha neiyo synchronous yekubvisa wedunhu, uye iko kurongeka kweiyo bit time kunokanganisa zvakananga sarudzo.
Uyu ndiye ShenzhenHDV Phoerekitironi Vadivelu Comedy Technology Ltd. kukuunza nezve "Kuumbwa kwedhijitari baseband chiratidzo chekufambisa system", tariro yekukubatsira, uye ShenzhenHDV Phoerekitironi Technology Ltd kuwedzera kuneONUseries, transceiver series,OLTdzakatevedzana, asiwo dzinogadzira module dzakatevedzana, dzakadai se: Kukurukurirana optical module, optical communication module, network optical module, communication optical module, optical fiber module, Ethernet optical fiber module, nezvimwewo, inogona kupa iyo inoenderana mhando sevhisi kune akasiyana vashandisi 'zvido , gamuchirai kushanya kwenyu.
