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    Umzekelo weNkqubo yoNxibelelwano

    Ixesha lokuposa: Nov-21-2024

    1. Ihlelwa ngokwenkonzo yonxibelelwano

    Ngokweentlobo ngeentlobo zeenkonzo zonxibelelwano, iinkqubo zonxibelelwano zinokwahlulwa zibe ziinkqubo zonxibelelwano ngetelegraph, iinkqubo zonxibelelwano ngomnxeba, iinkqubo zonxibelelwano lwedatha, iinkqubo zonxibelelwano ngemifanekiso, njl. isoloko isasazwa ngothungelwano lonxibelelwano lweefowuni zikawonke-wonke, olufana nonxibelelwano lwe-telegraph kunye nonxibelelwano lwedatha olukude lunokudluliselwa ngejelo lomnxeba. Inkonzo edityanisiweyo yothungelwano lonxibelelwano lwedijithali ilungele ukuhanjiswa kolwazi lweentlobo ngeentlobo zeenkonzo.

    2. Ihlelwe ngokwemowudi yomodareyitha

    Ngokumalunga nokuba isignali edluliselwe kwitshaneli imodulated okanye hayi, inkqubo yonxibelelwano inokwahlulwa ibe yi-baseband transmission system kunye ne-bandpass transmission system. Ukuhanjiswa kweBaseband kukuhanjiswa ngokuthe ngqo kweempawu ezingaguqukiyo, njengefowuni yendawo, usasazo lwentambo; Ukuhanjiswa kweBandpass ligama eliqhelekileyo lokuhanjiswa kweempawu ezahlukeneyo. Zininzi iindlela zokumodareyitha, kwaye iTheyibhile 1-1 idwelisa iindlela eziqhelekileyo zomodareyitha.

    3. Ukuhlelwa ngokweempawu zomqondiso

    Ngokutsho kwejelo lokuhambisa i-analog signal okanye isignali yedijithali, inkqubo yonxibelelwano yahlulwe ibe yinkqubo yonxibelelwano ye-analog kunye nenkqubo yonxibelelwano lwedijithali.

    4, ngokohlelo oluphakathi lothumelo

    Ngokwendlela yothumelo, inkqubo yonxibelelwano inokwahlulwa ibe yinkqubo yonxibelelwano ngeentambo kunye nenkqubo yonxibelelwano engenazingcingo. Unxibelelwano ngeengcingo kukusetyenziswa kocingo (njengocingo oluvulekileyo olungaphezulu, intambo yecoaxial, ifayibha ebonakalayo, i-waveguide, njl.njl.) njengendlela yokusasaza ukugqiba unxibelelwano, olufana nomnxeba wesixeko, i-TV yentambo, unxibelelwano lwentambo yenkwili. Unxibelelwano olungenazingcingo luxhomekeke ekusasazweni kwamaza ombane esithubeni ukufezekisa injongo yokuhambisa ulwazi, olufana nokusasazwa kwe-ionospheric yamaza amafutshane, i-microwave line-of-sight propagation, i-satellite relay njalo njalo.

    5, ngokohlelo lwebhendi yokusebenza

    Ngokuhambelana nokusebenza rhoqo okanye ubude besixhobo sonxibelelwano, yahlulwe yaba lunxibelelwano lwamaza amaza, unxibelelwano lwamaza aphakathi, unxibelelwano lwamaza omfutshane, unxibelelwano olukude lwe-infrared njalo njalo.

    6, ngokohlelo lwe-multiplexing lwesignali

    Kukho iindlela ezintathu ezisisiseko zokuphindaphinda ukuhambisa imiqondiso ye-multiplex, ezizezi, ulwahlulo lokuphindaphinda, ukuphinda-phinda ulwahlulo lwexesha kunye nokwahlulahlula ikhowudi. Ukwahlulahlula okuphindaphindayo kukwenza imiqondiso eyahlukeneyo ihlale kuluhlu lwamaza ohlukeneyo ngokutshintsha kwamaza. Ukwahlulahlula ixesha lokuphindaphinda kusebenzisa ukumodareyitha kwepulse ukwenza imiqondiso eyahlukeneyo ithathe ixesha elahlukileyo. Ikhowudi yokwahlula i-multiplexing kusetyenziso lwe-orthogonal encoding ukuthwala imiqondiso eyahlukeneyo. Ulwahlulo oluphindaphindiweyo lusetyenziswa kunxibelelwano lwe-analog yemveli. Ngophuhliso lonxibelelwano lwedijithali, ulwahlulo lwexesha lokuphindaphinda lusetyenziswa ngakumbi nangakumbi. Ikhowudi yokwahlula i-multiplexing isetyenziswa kunxibelelwano lwendawo yosasazo lwe-spectrum yonxibelelwano kunye nenkqubo yonxibelelwano lweselula. Ukongeza, kukho i-wavelength division multiplexing, i-space division multiplexing.



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