Iindaba

Xa umthamo wokuhambisa umjelo womzimba uphezulu kunemfuno yomqondiso omnye, umjelo unokwabelwana ngemiqondiso emininzi. Ngokomzekelo, umbombo wenkqubo yemfonomfono udla ngokuba namawakawaka emiqondiso ethunyelwa kwi<em>optical fiber enye. I-Multiplexing yitekhnoloji exazulula...

1) Ikhowudi ye-AMI Igama elipheleleyo lekhowudi ye-AMI (Alternative Mark Inversion) yenye ikhowudi yokuguqula uphawu. blank) ihlala ingatshintshi. Umzekelo: Ikhowudi yomyalezo: 0 1 1 0 0 0 0 0 0 0 0 1 1 0 0 1 1… AMI khowudi: 0 -1 +1 0 0 0 0 0 0 0 0 0 -1 +1 0 0 0 -1 +1… Ifom yamaza ehambelana nekhowudi ye-AMI yi...

Xa sihambisa umqondiso, nokuba ngumqondiso we-optical, umbane wombane, okanye i-wireless signal, ukuba idluliselwe ngokuthe ngqo, isibonakaliso siphazamiseka ngokulula, kwaye kunzima ukufumana ulwazi oluchanekileyo ekupheleni kokufumana. Ukuze kuphuculwe i-anti-interference abilit...

Iindlela ezisisiseko ze-binary digital modulation zezi: I-Binary amplitude keying (2ASK) -utshintsho lwe-amplitude yesiginali yomphathi; I-binary frequency shift keying (2FSK) -ukutshintsha rhoqo kwesignali yenkampani; I-binary phase shift keying (2PSK) -utshintsho lwesigaba somqondiso womthwali. Isitshixo sokutshintsha kwesigaba esahlukileyo...

Inkqubo ye-PON ithatha iteknoloji ye-multiplexing ye-time-division in the direction of uplink, kwaye i-ONU ithumela idathagrams kwi-uplink direction direction ngokwesitampu sexesha esabiwe yi-OLT. Xa i-ONU ikhupha ukukhanya ngaphandle kokwabela isitampu sexesha, iya kungqubana neempawu zokukhupha zezinye kwi...

Ngophuhliso lweenkqubo zonxibelelwano lwamehlo ezinomgama omde, umthamo omkhulu, kunye nesantya esiphezulu, ngakumbi xa isantya samaza esinye sivela kwi-40g ukuya kwi-100g okanye nakwi-super 100g, i-chromatic dispersion, i-nonlinear effects, i-polarization mode dispersion, kunye nezinye iziphumo zokuhambisa. ..