Constellation shine ainihin ra'ayi a cikin ƙirar dijital. Lokacin da muka aika sigina na dijital, yawanci ba mu aika 0 ko 1 kai tsaye ba, amma da farko muna samar da rukuni na sigina 0 da 1 (bits) bisa ga ɗaya ko da yawa. Misali, kowane bitibiyu suna kafa kungiya, wato 00, 01, 10, da 11. Jihohi hudu ne gaba daya (idan babu bit uku, akwai jihohi takwas, da sauransu). A wannan lokacin, za mu iya zaɓar QPSK (daidaituwa ta mataki huɗu, daidai da jahohi huɗu da suka gabata na 00, 01, 10, da 11), Makiyoyin QPSK huɗu sun zama ƙungiyar tauraro ta QPSK. Kowane maki yana da digiri 90 nesa da maki kusa (mafi girma iri ɗaya ne). Wurin taurari yana daidai da alamar daidaitawa. Ta wannan hanyar, kowane alamar daidaitawa da aka aika yana ninka bayanan da aka aiko.
QPSK gyare-gyaren ƙungiyar taurari
Tsarin taurari na siginar da aka karɓa
Lokacin karɓa da ƙaddamar da siginar QPSK, yanke hukunci wanda siginar aka aika bisa ga nisa tsakanin siginar da aka karɓa da maki huɗu a cikin ƙungiyar taurari (wanda ake magana da shi a matsayin nesa na Turai), kuma ƙayyade wane batu ya fi kusa da wanne batu don ƙaddamarwa.
Don haka, an fi amfani da zanen taurarin don yin taswira yayin daidaitawa (kamar QPSK, 16QAM, 64QAM, da sauransu) da kuma gano ko wane batu ake aika lokacin liyafar ta yadda za a iya ɓata bayanai daidai.
Abin da ke sama shi ne bayanin ilimin Tarihi na Tarihi wanda Shenzhen Haidiwei Optoelectronics Technology Co., Ltd. ya kawo, wanda shine masana'antar sadarwa ta gani kuma ke samar da sadarwasamfurori.
