Muri sisitemu yitumanaho rya digitale, uwakiriye yakira igiteranyo cyikimenyetso cyatanzwe hamwe n urusaku rwumuyoboro.
Uwitekakwakirwa nezaby'ibimenyetso bya digitale bishingiye kubipimo "byiza" hamwe nibibazo bito bishoboka.Amakosa yasuzumwe muri iki gice aterwa ahanini n urusaku rwinshi rwa urusaku rwa Gaussiya.Muri iki gitekerezo, ibimenyetso bibiri byahinduwe bigabanijwemo ubwoko butatu: ibimenyetso bisobanutse, ibimenyetso biterwa nicyiciro, nibimenyetso bihindagurika.Nibura byibuze amakosa ashobora gusesengurwa mubwinshi.Mubyongeyeho, ikosa rishoboka ryo kwakira ibimenyetso byinshi bya baseband ibimenyetso nabyo birasesengurwa.
Uwitekaihame shingiro ryisesengurani Kuri Reba Byose Byatanzwe Byerekana Ibimenyetso Byakiriwe Ikimenyetso Nka vector mu k-Urwego rwakiriwe rwerekana umwanya kandi ugabanye umwanya wakiriwe mu turere tubiri.Niba ikosa ribaho cyangwa ritabaho bigenwa ukurikije akarere yakiriwe na vector.Igishushanyo mbonera cyo guhagarika igishushanyo cyiza cyakirwa kirashobora kuboneka kandi igipimo cyibeshya gishobora kubarwa nigipimo cyicyemezo.Igipimo cyamakosa ya biti nibyiza muburyo bwiza - ni ukuvuga, bito bito bishoboka.
Uwitekaikosa ryizaigipimo cyibimenyetso byerekana ibimenyetso bigenwa na coefficient p ihuza ibimenyetso bibiri nibimenyetso byerekana urusaku E / n, ariko ntaho bihuriye nuburyo bwo kwerekana ibimenyetso.Gutoya ihuriro coefficient p, hepfo igipimo cyibeshya.Coefficient de la coiffe ya 2PSK ni ntoya (p = -1), kandi igipimo cyayo cyo kwibeshya ni gito.Ikimenyetso cya 2FSK gishobora gufatwa nkikimenyetso cya quadrature kandi coeffisente yacyo ni p = 0.
Kuriicyiciro gikurikiran'ikimenyetso gihindagurika, gusa iIkimenyetso cya FSKikoreshwa nkuhagarariye gusesengura, kuko muriyi nzira, amplitude hamwe nicyiciro cyibimenyetso bihinduka biturutse ku ngaruka z’urusaku, bityo ibimenyetso bya FSK bikwiranye cyane no gusaba.Kubera ko umuyoboro utera impinduka zidasanzwe mugice cyibimenyetso, demodulation ya coherent ntishobora gukoreshwa.Ahubwo, demodulation idahuje nuburyo bwiza bwo kwakira ibimenyetso.
Ugereranije na biti yibipimo byabakiriye nyirizina nauwakira neza. bibiri ni bimwe.Ariko, ibi ntibishoboka buri gihe kuberako ababyakira.Rero, imikorere yabakiriye nyayo ihora mibi kurenza iyakirwa neza.
Nibyo Shenzhen HDV Phoelectron Technology Co., Ltd. kuri wewe.ikuzaniye kubyerekeye "Kwakira neza Ibimenyetso bya Digital".Nizere ko iyi ngingo ishobora kugufasha kongera ubumenyi.Usibye iyi ngingo niba ushaka ibikoresho byiza bya fibre itumanaho ibikoresho bya sosiyete ushobora gutekerezaibyerekeye twe.
Shenzhenni uwukora ibicuruzwa byitumanaho.Kugeza ubu, ibikoresho byakozwe bitwikiriyeUrukurikirane rwa ONU, icyiciro cya optique, Urukurikirane rwa OLT, naurukurikirane.Turashobora gutanga serivisi yihariye kubintu bitandukanye.Murakaza nezabaza.
