Chidziwitso

Pamene titumiza chizindikiro, kaya ndi chizindikiro cha kuwala, chizindikiro cha magetsi, kapena chizindikiro chopanda zingwe, ngati chikuperekedwa mwachindunji, chizindikirocho chimasokonezeka mosavuta ndi phokoso, ndipo n'zovuta kupeza chidziwitso cholondola pamapeto olandira. Pofuna kukonza luso la anti-interference ...

Njira zoyambira zakusintha kwa digito ndi: Binary amplitude keying (2ASK) -kusintha kwa matalikidwe a chizindikiro chonyamulira; Binary frequency shift keying (2FSK) -kusintha pafupipafupi kwa chizindikiro chonyamulira; Binary phase shift keying (2PSK) -kusintha kwagawo kwa chizindikiro chonyamulira. Kusintha kwagawo losiyana makiyi ...

Dongosolo la PON limagwiritsa ntchito ukadaulo wogawanitsa nthawi munjira ya uplink, ndipo ONU imatumiza ma datagraphs kupita ku uplink direction molingana ndi sitampu yanthawi yomwe OLT idaperekedwa. ONU ikatulutsa kuwala popanda kuyika sitampu yanthawi, imasemphana ndi ma siginecha ena pa...

Ndi chitukuko cha njira zoyankhulirana zowoneka bwino zokhala ndi mtunda wautali, mphamvu zazikulu, ndi liwiro lapamwamba, makamaka pamene mafunde amodzi amachokera ku 40g mpaka 100g kapena ngakhale super 100g, chromatic dispersion, nonlinear zotsatira, polarization mode dispersion, ndi zotsatira zina zopatsirana. ..

Khodi yozindikira zolakwika (kodi yoyang'ana): cheke chapawiri chimakhala ndi n-1 bit information unit ndi 1 bit check element. N-1 bit information unit ndi data yovomerezeka muzambiri zomwe timatumiza, ndipo 1-bit cheke unit imagwiritsidwa ntchito pozindikira zolakwika ndi khodi ya redundancy. Chodabwitsa: ngati n...

Moni, Owerenga. M'nkhaniyi ndikambirana za OSI-Data Link Layer Error Control ndikufotokozera. Tiyeni tiyambire… Kuti timvetsetse kasamalidwe ka ulalo wa data tiyeni titenge chitsanzo, ngati chipangizo A chikufunika kulumikizana ndi chipangizo B, ulalo wolumikizirana ...