Hanyoyi na asali na ƙirar dijital na binary sune: binary amplitude keying (2ASK) - canjin girman siginar mai ɗauka; Binary mitar motsi keying (2FSK) - canjin mitar siginar mai ɗauka; Maɓallin motsin lokaci na binary (2PSK) - Canjin siginar mai ɗaukar lokaci. Saboda rashin tabbas na lokaci a cikin tsarin 2PSK, an haɓaka 2DPSK maɓalli na bambance-bambance.
Yawan bandwidth da 2ASK da 2PSK ke buƙata shine sau biyu ƙimar lambar. 2FSK yana buƙatar bandwidth mafi girma fiye da 2ASK da 2PSK.
Matsakaicin kuskuren bit na nau'ikan tsarin daidaitawa na dijital na binary ya dogara da sigina zuwa rabon amo (SNR) na demodulator. Dangane da hayaniyar Gaussian na anti-additive, daidaitaccen 2PSK yana da mafi kyawun aiki, sannan 2FSK ya biyo baya, kuma 2ASK yana da mafi munin aiki.
TAMBAYA shine ɗayan farkon hanyoyin daidaitawa. Amfaninsa shine kayan aiki mai sauƙi da amfani da bandeji mai girma; Rashin hasara shi ne cewa aikin hana amo ba shi da kyau, kuma yana kula da canjin halayen tashartics, kuma ba shi da sauƙi a sanya mai gano yanke shawara samfurin aiki a cikin mafi kyawun matakin matakin yanke shawara.
FSK hanya ce ta daidaitawa da ba makawa a cikin sadarwar dijital. Amfaninsa shine yana da ƙarfin hana tsangwama kuma ba shi da tasiri ta hanyar canje-canjen sigar tashoshi, don haka FSK ya dace musamman don tashoshi masu lalacewa. Rashin lahani shi ne cewa rukunin mitar da aka mamaye yana da faɗi, musamman MF-SK, kuma amfani da mitar yana da ƙasa. A halin yanzu, ana amfani da tsarin ƙirar mitar a cikin matsakaici da ƙananan watsa bayanai.
PSK ko DPSK shine yanayin daidaitawa tare da ingantaccen watsawa, ƙarfin hana surutu yana da ƙarfi fiye da ASK da FSK, kuma canjin yanayin tashar ba shi da sauƙi ya shafa, don haka an yi amfani da shi sosai wajen watsa bayanai masu girma da matsakaici. . Cikakkiyar canjin lokaci (PSK) tana da matsalar rashin daidaituwar lokaci mai ɗaukar hoto a cikin daidaituwar daidaituwa, don haka da wuya a yi amfani da shi a watsa kai tsaye a aikace. Ana amfani da MDPSK sosai.
Abin da ke sama shine labarin "Binary digital modulation" wanda Shenzhen HDV Phoelectron Technology Co., LTD ya kawo. Shi masana'anta ne da ya kware a kayan sadarwa a matsayin manyan samfuran, kamarONUjerin samfurori:OLT ONU, ACONU, SadarwaONU, fiber na ganiONU, CATVONU, GPONONU, XPONONU, da sauransu, ana iya amfani da kayan aikin da ke sama zuwa yanayin rayuwa daban-daban, da kuma daidaiONUjerin samfurori za a iya tsara su bisa ga bukatun kansu. Kamfaninmu na iya ba da ƙwararrun ƙwararru da goyan bayan fasaha. Muna jiran ziyarar ku.
