Blog

Mudhijitari yekutaurirana sisitimu, izvo zvinogashirwa nemugamuchiri ihuwandu hwechiratidzo chinofambiswa uye ruzha rwechiteshi. Kugashira kwakaringana kwemasaini edhijitari kwakavakirwa padiki kukanganisa mukana se "yakanakisa" chiyero. Mhosho dzakatariswa muchitsauko chino ndedze...

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 ive nechokwadi chekuvimbika uye kurongeka basa rehurongwa, th...

Kana simba rekufambisa rechiteshi chemuviri rakakwirira kudarika kudiwa kwechiratidzo chimwe, chiteshi chinogona kugoverwa nezviratidzo zvakawanda, semuenzaniso, trunk line yenharembozha inowanzova nezviuru zvezviratidzo zvinopfuudzwa mune imwe fiber. Multiplexing iteknoloji yekugadzirisa sei ...

(1) AMI kodhi AMI (Alternative Mark Inversion) kodhi ndiro zita rizere reimwe chiratidzo inversion kodhi, mutemo wayo weencoding ndeyekuchinja kodhi meseji "1" (maka) kuita "+1" uye "-1", ukuwo. iyo "0" (chiratidzo chisina chinhu) chinoramba chisina kuchinjwa. Somuenzaniso...

Patinotumira chiratidzo, ingave chiratidzo chemaziso kana chiratidzo chemagetsi kana chisimbiso chisina mhepo, kana chikatumirwa zvakananga, chiratidzo chinokonzerwa nekukanganiswa kweruzha, uye zvakaoma kuwana ruzivo rwakarurama pamagumo ekugamuchira. Kuti t...

Nzira dzakakosha dzebhinari yedhijitari modulation ndeiyi: binary amplitude keying (2ASK) - shanduko yeamplitude yechiratidzo chekutakura; Binary frequency shift keying (2FSK) - iyo frequency shanduko yechiratidzo chekutakura; Binary phase shift keying (2PSK) - Chikamu chekuchinja chemutakuri ...