Lokacin da muke watsa sigina, ko siginar gani ne, siginar lantarki, ko siginar mara waya, idan ana watsa ta kai tsaye, siginar yana cikin sauƙi da hayaniya, kuma yana da wahala a sami ingantaccen bayani a ƙarshen karɓar. Don haɓaka ikon hana tsangwama na tsarin, ana iya gane shi ta hanyar daidaita siginar. Modulation kuma na iya yin amfani da tashoshi mafi kyau, don haka yana da babban tasiri kan yadda tsarin sadarwa ke aiki da aminci.
Tsarin kusurwar da aka kwatanta a ƙasa don siginar analog ne.
Mai ɗaukar sinusoidal yana da sigogi guda uku:amplitude, mita, da lokaci. Za mu iya loda bayanan siginar da aka daidaita ba kawai a cikin girman canjin mai ɗaukar kaya ba har ma a cikin mitar ko canjin lokaci na mai ɗauka. Lokacin daidaitawa, idan mitar mai ɗaukar hoto ya bambanta da siginar na'urar, ana kiranta mita daidaitawa ko daidaitawar mita (FM); idan tsarin na’urar dakon kaya ya bambanta da siginar na’urar, ana kiransa “fase modulation” ko “fase modulation” (PM) A cikin waxannan nau’ukan nau’ukan na’urorin zamani guda biyu, girman na’urar ya tsaya tsayin daka, kuma ana nuna canjin mita da lokaci kamar yadda canji na lokaci mai sauri na mai ɗauka. Don haka, FM da tsarin daidaitawa ana kiransu gaba ɗaya azaman daidaitawar kusurwa.
Bambancintsakanin gyare-gyaren kusurwa da haɓakar haɓaka shi ne cewa ƙirar siginar da aka daidaita ba ita ce motsin layi na ainihin siginar siginar da aka canza ba, amma canzawa maras kyau na bakan, wanda zai haifar da sababbin abubuwan mitar da suka bambanta da motsin bakan, don haka ake kira shi. rashin daidaituwar layi.
FM da PMana amfani da su sosai a tsarin sadarwa. FM ana amfani dashi sosai a watsa shirye-shiryen kiɗa mai inganci, watsa siginar sauti na TV, sadarwar tauraron dan adam, da tsarin wayar salula. Baya ga yin amfani da shi kai tsaye don watsawa, ana kuma amfani da PM azaman sauyi don samar da siginar FM a kaikaice. Akwai dangantaka ta kud-da-kud tsakanin gyare-gyaren mitar mita da daidaitawar lokaci.
Idan aka kwatanta da fasahar juzu'i na amplitude, fitaccen fa'idar daidaitawar kusurwa shine babban aikin sa na hana amo. Duk da haka, akwai riba da asara. Kudin samun wannan fa'idar shine cewa ƙirar kusurwa ta mamaye babban bandwidth mai faɗi fiye da siginar haɓakawa.
Abin da ke sama shi ne bayanin bayanan ilimi game da tsarin daidaitawa mara kyau (kwanatin gyaran fuska) ya kawo HDV photoelectric Technology Co., Ltd. Shenzhen HDV photoelectric Technology Co., Ltd. shine mai kera na samfuran sadarwa. A halin yanzu, kayan aikin da aka samar sun rufejerin ONU, na gani module jerin, Hanyoyin ciniki na OLT, kumatransceiver jerin. Za mu iya samar da ayyuka na musamman don yanayi daban-daban. Barka da zuwatuntuba.
