Emhlabeni ophumelele osheshayo wobuchwepheshe besimanje, umqondo we-modulator udlala indima ebalulekile nebalulekile ekusebenzeni kwamadivayisi ahlukahlukene nezinhlelo.Ama-modulatorsIzakhi ezibalulekile ezisetshenziselwa ukuguqula nokukhohlisa amasiginali ezinhlobonhlobo zezicelo kufaka ukuxhumana ngocingo, ukusakaza kanye nokuhanjiswa kwedatha. Njengoba ubuchwepheshe buqhubeka buqhubekisela phambili futhi bathuthukise, ukubaluleka kwama-modulators ekwenzeni lula ukuxhumana okusebenzayo nokusebenzayo akunakweqiwa.
Kwe-elekthronikhi nasekuxhumaneni ngocingo, i-modulator iyithuluzi noma umjikelezo obhekele imininingwane efaka ikhodi kwisiginali yenethiwekhi yokudlulisela. Empeleni iguqula imininingwane kusuka kufomu layo lasekuqaleni libe yifomethi efanelekile ekudluliseleni nge-medium ethile. Le nqubo ibalulekile ekuqinisekiseni ukuthi imininingwane idluliselwe futhi yamukelwa ngempumelelo endaweni yayo ehlosiwe.
Enye yezinhlelo zokusebenza ezibalulekile zama-modulators zikuxhumana ngocingo, lapho zisetshenziselwa ukudlulisa izwi, idatha nezimpawu zevidiyo ngaphezulu kwamanethiwekhi okuxhumana ahlukahlukene. Ezinhlelweni zezokuxhumana zedijithali, ama-mod modulators asetshenziselwa ukuguqula idatha yedijithali ibe amasiginali we-analog angadluliselwa ngaphezulu kwesiteshi sezokuxhumana se-analog. Le nqubo ivumela ukudluliselwa okusebenzayo kwemininingwane yedijithali ngengqalasizinda ekhona ye-analog, okunika amandla ukuhanjiswa kwedatha ephezulu kanye nokuxhumana okuthembekile.
Ngaphezu kwalokho,ama-modulators Dlala indima ebalulekile ekusakazweni nasekuzijabuliseni, zisetshenziswa ekudluliseni kwezimpawu zethelevishini nakwimisakazo. Ukusakazwa kwethelevishini, ngokwesibonelo, ukuthembela kuma-modwators ukuguqula amasiginali omsindo nevidiyo abe yifomethi engadluliselwa ngaphezulu kwamagagasi omsakazo noma nge-satellite amanethiwekhi. Ngokufanayo, ukusakazwa komsakazo kusebenzisa amamodeli ukukala amasiginali okulalelwayo kumagagasi ethwala ekudlulisela.
Ngaphezu kokuxhumana ngocingo kanye nokusakaza, ama-modwotors nawo abalulekile emkhakheni wokudluliselwa kwedatha kanye nokuxhumana. Kumanethiwekhi ekhompyutha, ama-modulators asetshenziselwa ukuguqula idatha yedijithali ibe amasiginali kagesi noma obonakalayo wokudlulisela iziteshi zokuxhumana ezibunjiwe noma ezingenantambo. Lokhu kunika amandla ukushintshana komthungo kwemininingwane phakathi kwamadivayisi axhunyiwe nezinhlelo, okwenza ukusebenza kahle kwamanethiwekhi wesimanjemanje wedatha.
Intuthuko kubuchwepheshe besizinda futhi iholele ekuthuthukisweni kwezinhlelo eziyinkimbinkimbi zokushintshashintsha ezingakwenza kahle ukudluliswa nokwamukela iziginali ngempumelelo. Ubuchwepheshe obufana nokuguqulwa kwe-amplitude (AM), ukuguquguquka imvamisa (i-FM), kanye nokushintshashintsha kwesigaba (PM) kuvame ukusetshenziswa ukuxhumana okusebenzayo nokuthembekile. Lezi zinhlelo zokushintshashintsha zikwazi ukufaka imininingwane esisayinweni esiphethe ngokunemba okuphezulu futhi zivumele isiginali ukuthi idluliselwe amabanga amade ngaphandle kokulahleka okukhulu noma ukonakaliswa.
Njengoba isidingo sokuxhumana ngesivinini esikhulu kanye nokudluliswa kwedatha kuyaqhubeka ukukhula, indima yemodeli kubuchwepheshe besimanje ihlala ibalulekile. Ukuthuthukiswa kobuchwepheshe be-modulator athuthukile kuveze indlela yamakhono okuxhumana okuthuthukisiwe ukuze adlulise izwi, idatha nezimpawu zevidiyo ngaphezulu kwamanethiwekhi okuxhumana ahlukene.
Ngokufigqiwe,ama-modulatorsziyingxenye ebalulekile yobuchwepheshe besimanje futhi badlale indima ebalulekile ekudluliseni imininingwane efanelekile kuzo zonke iziteshi ezahlukahlukene zokuxhumana. Ukusuka ekuxhumaneni ngocingo nasekusakazeni ekudluliseleni kwedatha kanye nokuxhumana kwenethiwekhi, ama-modulators angaphambili wokunika amandla ukuxhumana okuthembekile futhi okusebenzayo. Njengoba ubuchwepheshe buqhubeka buqhubekisela phambili, ukubaluleka kwama-modulators ekwenzeni lula ukuxhumeka komthungo kanye nokuxhumana kuzoqhubeka nokukhula.
Isikhathi Sokuthumela: Dec-14-2023