- Izimpawu ze-analogi ziyahlukahluka ngokuqhubekayo ngokuhamba kwesikhathi futhi zinezinhlelo zokusebenza kumsindo, umsakazo nomabonakude.
- Zihlukile kumasignali edijithali ngoba ukudluliselwa kwazo kusekelwe ku-amplitude nemvamisa, okuzenza zibe lula ekuphazamisekeni.
- Izinzuzo zayo zihlanganisa ukwethembeka komsindo, kuyilapho ukonakala kwayo kuhlanganisa ukucekelwa phansi lapho ikopishwa nomsindo.
Izimpawu ze-analog zikhona ezicini eziningi zokuphila kwethu kwansuku zonke, kusukela ekusakazweni komsakazo nakuthelevishini kuya ekulinganisweni kwezimo eziguquguqukayo ezifana nokushisa noma ingcindezi . Naphezu kwentuthuko yezobuchwepheshe kanye nokwenyuka kwezibonakaliso zedijithali, izimpawu ze-analog ziyaqhubeka nokudlala indima ebalulekile ezinhlelweni eziningi.
Kulesi sihloko, sizohlola ngokujulile ukuthi iyini isignali ye-analog, ukuthi isebenza kanjani, yiziphi izici zayo kanye nomehluko ngezimpawu zedijithali, kanye nezinzuzo zayo kanye nokubi. Ngale ndlela, uzokwazi ukuqonda kangcono ukubaluleka kwayo kanye nokusetshenziswa kwayo emikhakheni ehlukahlukene.
Iyini isignali ye-analog?
Isignali ye-analog uhlobo lwesignali olushintshashintsha njalo ngokuhamba kwesikhathi. Lokhu kusho ukuthi ingathatha inani elingenamkhawulo lamanani ngaphakathi kobubanzi obunikeziwe, ngokungafani nesignali yedijithali , engathatha kuphela amanani ahlukene.
Lezi zinhlobo zezibonakaliso zikhona emhlabeni wemvelo , njengoba amanani amaningi angokwenyama, njengokushisa, umsindo, ingcindezi, noma ukukhanya, angamelwa yizibonakaliso ze-analog. Ukwehluka kwalezi zibonakaliso kuvame ukubonakaliswa njengamagagasi e-sinusoidal , achaza izinguquko zesibonakaliso ngendlela eqhubekayo neqhubekayo.
Izici zezimpawu ze-analog
Amasignali e-analogi anochungechunge lwezimpawu eziwahlukanisa kwezinye izinhlobo zamasignali. Phakathi kwezibaluleke kakhulu sithola:
- Ukuhluka okuqhubekayo: Azinaziphazamiso futhi zingathatha noma yiliphi inani ngaphakathi kobubanzi.
- Ukudluliswa kwesikhathi sangempela: Zifanele ukudluliswa komsindo nevidiyo, njengoba zibonisa ngokwethembeka ukuhlukahluka kwesiginali yokuqala.
- Ngokusekelwe kumapharamitha amabili: Ukuziphatha kwayo kuchazwa ngama-amplitude kanye nemvamisa.
- Ukuzwela ekuphazamiseni: Zingacekelwa phansi ngomsindo kagesi.
Umehluko phakathi kwamasignali e-analog nedijithali
Izimpawu ze - analog nezedijithali ziyahlukahluka ezicini eziningana eziyisisekelo, okwenza zifaneleke kakhulu ekusetshenzisweni okuthile.
- Ifomu lokudlulisela: Eze-analogi ziyahlukahluka ngokuqhubekayo, kuyilapho ezedijithali zisebenzisa amanani ahlukene noma kanambambili (0 kanye no-1).
- Ikhwalithi yolwazi: Isignali yedijithali igcina ikhwalithi yayo kangcono futhi ayinciphisi ngamakhophi, ngokungafani ne-analogue.
- ukuphazamiseka: Amasignali edijithali amelana kakhulu nomsindo kunezimpawu ze-analog.
- Izindleko nokusebenza kahle: Ukudluliswa kwe-analogi kuvamise ukushibhile, kodwa kungasebenzi kahle ngokomthamo wedatha.
Izibonelo zezimpawu ze-analog
Izimpawu ze-analog zikhona ezimweni eziningi zansuku zonke. Ezinye izibonelo zihlanganisa:
- Isignali yomsakazo: Abasakazi bendabuko basakaza amasignali e-analog ahlelwe nge-AM ne-FM.
- Umabonakude we-analogue: Nakuba ishintshwe kakhulu ithelevishini yedijithali, amashumi eminyaka isignali ye-TV yayiyi-analog.
- Umsindo wezwi lomuntu: Ukuxhumana ngomlomo kuyisibonelo esicacile sokudluliswa kwe-analog, njengoba ukudlidliza kuqhubeka.
- Ukurekhodwa kwe-vinyl: Ifomethi yerekhodi ye-vinyl igcina imininingwane ngefomu le-analog.
Izinzuzo kanye nokubi kwezimpawu ze-analog
Izinzuzo
- Ukuthembeka okuphezulu: Kwezinye izimo, njengomsindo we-vinyl, ikhwalithi yesiginali ye-analog ingaba phezulu kunedijithali ngokuya ngokunotha kwe-sonic.
- Izindleko eziphansi: Ukudluliswa kwe-analogi namadivayisi ngokuvamile kuba nezindleko eziphansi.
- Ukusetshenziswa kumasistimu amadala: Izingqalasizinda eziningi zisathembele kumasiginali we-analog.
nebubi
- Ukwanda kokuvumeleka kokuphazanyiswa: Ukwehluka kwesignali kungabangela ukuhlanekezela ngenxa yomsindo.
- Ukulahleka kwekhwalithi kumakhophi: Ngaso sonke isikhathi uma isignali ye-analog ikopishwa, ikhwalithi yayo iyehla.
- Ukusebenza okuncane ekudluliselweni kwedatha: Ayikuvumeli ukudluliselwa ngendlela efanele futhi esheshayo njengokudluliswa kwedijithali.
Nakuba amasiginali edijithali azuze amandla ezimbonini eziningi, amasiginali e-analog asadlala indima ebalulekile ezinhlelweni eziningi zokusebenza. Ukuba khona kwayo emvelweni nakubuchwepheshe bukhombisa ukuthi, nakuba umhlaba uphokophele kudijithali, i-analogue isaqhubeka nokuba yingxenye ebalulekile yezokuxhumana kanye nokudluliswa kolwazi.