Wararka

Marka awoodda gudbinta kanaalka jireed ay ka sarreyso baahida hal calaamad, kanaalka waxaa la wadaagi karaa calaamado badan. Tusaale ahaan, khadka jirridda ee nidaamka telifoonku waxa uu inta badan leeyahay kumanaan calaamadood oo lagu kala qaado hal fiber optic ah. Multiplexing waa tignoolajiyada xalisa...

1) Koodhka AMI Magaca buuxa ee AMI (Alternative Mark Inversion) koodka waa summada beddelka ah ee beddelka. bannaan) isma beddelin. Tusaale: Koodhka farriinta: 0 1 1 0 0 0 0 0 0 0 1 1 0 0 1 1… AMI code: 0 -1 +1 0 0 0 0 0 0 0 0 -1 +1 0 0 -1 +1… Qaabka mawjada u dhiganta AMI code waa...

Marka aynu gudbinayno signalka, hadday tahay ishaarka indhaha, haddii ay tahay signalka koronto, ama signalka wireless-ka, haddii si toos ah la isugu gudbiyo, signalka si fudud buu u dhibaa buuqa, wayna adag tahay in la helo macluumaad sax ah marka la gaadho meesha ugu dambaysa. Si loo hagaajiyo awoodda faragelinta ka hortagga...

Hababka aasaasiga ah ee habaynta dhijitaalka ah ee binary waa: furaha cabbirka laba-geesoodka ah (2ASK) - isbeddelka baaxadda ee calaamadda side; Fure-is-beddelka soo noqnoqda ee laba-geesoodka ah (2FSK) -isbeddelka soo noqnoqda ee calaamadda side; Fure-is-beddelka wajiga binary (2PSK) - isbeddelka wejiga ee calaamadda side. Isbedelka wajiga kala duwan ee muhiimka ah...

Nidaamka PON wuxuu qaataa tignoolajiyada isku dhufashada waqtiga-qaybinta ee jihada korka, iyo ONU waxay u dirtaa xogta jihada kor u kaca iyadoo la raacayo shaambada wakhtiga ay qoondaysay OLT. Marka ONU uu shido iftiin isagoon ku meelayn shaambada wakhtiga, waxay ka hor imanaysaa calaamadaha qiiqa ee kuwa kale

Iyadoo horumarinta hababka isgaarsiinta indhaha ee fogaan dheer, awoodda weyn, iyo xawaaraha sare, gaar ahaan marka hal mawjada hal abuur leh ka 40g in 100g ama xitaa super 100g, kala firdhiso chromatic, saamaynta aan online ahayn, kala firdhiso habka polarization, iyo saamaynta gudbinta kale ee. ..