Nkhani

Pamene mphamvu yotumizira njira ya thupi imakhala yochuluka kuposa kufunikira kwa chizindikiro chimodzi, njirayo imatha kugawidwa ndi zizindikiro zambiri, mwachitsanzo, thunthu lamtundu wa foni nthawi zambiri limakhala ndi zizindikiro zambiri zomwe zimafalitsidwa mu fiber imodzi. Multiplexing ndi ukadaulo wothana ndi ...

(1) AMI code AMI(Alternative Mark Inversion) code ndi dzina lathunthu la code inversion code, lamulo lake la encoding ndikusintha mosinthana ma code code “1″ (chizindikiro) kukhala “+1″ ndi “-1″, pomwe "0" (chizindikiro chopanda kanthu) sichinasinthe. Mwachitsanzo...

Tikatumiza chizindikiro, kaya ndi chizindikiro cha kuwala kapena chizindikiro cha magetsi kapena chizindikiro chopanda zingwe, ngati chikuperekedwa mwachindunji, chizindikirocho chimatha kusokoneza phokoso, ndipo n'zovuta kupeza chidziwitso choyenera pamapeto olandira. Kuti t...

Njira zoyambira zakusintha kwa digito ndi: binary amplitude keying (2ASK) - kusintha kwa matalikidwe a chizindikiro chonyamulira; Binary frequency shift keying (2FSK) - kusintha kwafupipafupi kwa chizindikiro chonyamulira; Binary phase shift keying (2PSK)- Kusintha kwa gawo la chonyamulira ...

WiFi ndi muyezo wapadziko lonse lapansi wa Wireless Local Area Network (WLAN), dzina lathunthu Wireless Fidelity, womwe umadziwikanso kuti IEEE802.11b muyezo. WiFi poyambilira idakhazikitsidwa pa protocol ya IEEE802.11, yomwe idasindikizidwa mu 1997, yomwe idatanthauzira WLAN MAC wosanjikiza komanso miyezo yapagulu. Kutsatira ...

Kuwonongeka kwa chithunzi cha maso Cholinga: Chiŵerengero cha Kutha Kafukufuku ndi siteji yachitukuko: pakati pa 10-15 (yaikulu ndi yabwino kuposa yaying'ono), malingana ndi momwe zilili zenizeni zingakhale zoyenera kuti ziwongolere kutha, koma osati zotsika kwambiri. Zimakhudzana ndi kukhudzidwa. Kugwa...