Ukusetshenziswa kobuchwepheshe be-DSP ku Iziteshi zomsakazo we-FM akuyona into entsha. Ungakubona kokuningi abasakazi bomsakazo wedijithali FM. Ngakho hlobo luni lobuchwepheshe? Lesi sabelo sizokwethula i-DSP emikhakheni emithathu: umgomo wokusebenza we-DSP, ukwakheka kohlelo lwe-DSP, kanye nomsebenzi we-DSP.
OKUQUKETHWE
Yini i-DSP
Izingxenye ze-DSP
Izinzuzo ze-DSP
Umhlinzeki Ongcono Kakhulu Wama-FM Transmitters nge-DSP Technology
Isiphetho
Q&A
Yini i-DSP?
I-DSP isho ubuchwepheshe bokucubungula isignali yedijithali. Iguqula okokufaka kwesignali yomsindo ibe isidluliseli somsakazo we-FM ibe amasignali edijithali u-0 no-1, futhi isebenze, njengokuhlanganisa, ukususa, ukuphindaphinda, nokuhlukanisa ngezibalo, bese ikhipha isignali yedijithali ku-DDS ukuze iqhubeke nokusebenza.
Uma kuqhathaniswa nobuchwepheshe bokucubungula isignali ye-analog, i-DSP inezinzuzo zokucubungula isignali okunembile, amandla okulwa nokuphazamiseka okuqinile, isivinini esikhulu ekudluliseleni ibanga elide, nokuhlanekezela okuphansi. Ngakho-ke, abasakazi bomsakazo we-FM ngobuchwepheshe be-DSP bangadlulisela amasiginali alalelwayo ngekhwalithi ephezulu nokuhlanekezela okuphansi, futhi ngeke izethameli noma opharetha beziteshi zomsakazo bazocindezelwa umsindo. Enjalo Iziteshi zomsakazo we-FM asetshenziswa kakhulu eziteshini zomsakazo wedolobha, i-drive-in theatre, njalonjalo.
Iziphi Izingxenye I-DSP Equkethe?
Uhlelo oluhle kakhulu lwe-DSP luqukethe izingxenye eziningana ezihlukene: Okokufaka nokuphumayo, i-chip ye-DSP, inkumbulo yoHlelo, Injini yekhompyutha, Ukugcinwa kwedatha. Futhi banesibopho semisebenzi eyahlukene.
- Okokufaka nokuphumayo - Lawa ngamasango okuba abasakazi bomsakazo we-FM bathole amasiginali alalelwayo kanye namasiginali aphumayo. Isignali yedijithali noma isignali yedijithali eguqulelwe isignali ye-analogi ingena ohlelweni lwe-DSP ngokufaka, icutshungulwe, bese ingena esigabeni sokucubungula esilandelayo ngokuphumayo.
- I-chip ye-DSP - Lona "ubuchopho" bohlelo lwe-DSP, lapho amasignali edijithali acutshungulwa khona.
- Memory - Kulapho kugcinwa khona ama-algorithms okucubungula isignali yedijithali ye-DSP.
- Inkumbulo yohlelo - Njengezinye izinhlelo zememori, izinhlelo zokuguqulwa kwedatha zigcinwa lapha.
- Injini yekhompyutha - Lena ingxenye yesistimu ye-DSP, esetshenziselwa ukubala yonke imisebenzi yezibalo eyenzeka ngesikhathi sokucubungula isignali.
- Isitoreji sedatha - Lonke ulwazi olungase kudingeke ukuthi lucutshungulwe lugcinwe lapha.
Uhlelo lwe-DSP lufana nesikhungo sokucubungula, esidinga ukuhlukaniswa kwabasebenzi nokubambisana kwezingxenye ezehlukene ngaphambi kokuthi lucubungule kahle isignali yedijithali.
Yini I-DSP Engasenzela Ngayo?
Siyazi ukuthi ubuchwepheshe be-DSP buthuthukisa ikhwalithi yokudlulisa yomsindo ngokucubungula okudijithali kwesiginali yomsindo. Ngakho-ke ama-FM angasetshenziswa ezimeni eziningi. Nazi izibonelo:
- Ngeke usakwazi ukuphazanyiswa umsindo - Ubuchwepheshe be-DSP bungahlukanisa ukuthi yimiphi imisindo edingekayo nokuthi yimiphi imisindo ephazamisayo, njengezinyathelo. Ngokuphazanyiswa okubangelwa umsindo, ubuchwepheshe be-DSP bungabuvikela futhi buthuthukise i-SNR yesidlulisi somsakazo we-FM.
- Ingenza ivolumu izinze - Uhlelo lwe-DSP lunomsebenzi wokulawula inzuzo ngokuzenzakalelayo. Ingakwazi ukulinganisa ivolumu ngokuzenzekelayo ukuze isignali yomsindo ingabi phezulu kakhulu noma ithule kakhulu, okungathuthukisa ngempumelelo umuzwa wezilaleli zokulalela.
- Thuthukisa ikhwalithi yomsindo yefrikhwensi ngayinye - Izisetshenziswa ezihlukile zinokusetshenziswa okuhlukile komsindo wefrikhwensi efanayo. Isibonelo, uma umsakazo uthuthukiselwe umsindo wamafrikhwensi aphezulu, ikhwalithi yomsindo wefrikhwensi ephansi owudlalayo ingase ibe mbi. Ubuchwepheshe be-DSP bungabhalansisa lokhu kulungiselelwa futhi buthuthukise ikhwalithi yomsindo wefrikhwensi ephansi yomsakazo ngokushintsha isignali yomsindo.
- Ivumelana nezimo ezihlukene zomsindo - Ubuchwepheshe be-DSP bunamandla okucubungula imisindo ezindaweni ezahlukene, okubaluleke kakhulu ezindaweni ezinomsindo njengamafekthri.
- Kukongela isikhala esiningi - Ngaphambi kokuba abasakazi bomsakazo we-FM basebenzise ubuchwepheshe be-DSP, imiphumela eminingi yomsindo ibonakala ngamadivaysi amaningi engeziwe. Kodwa manje kudingeka imojuli encane kuphela ukuze kuzuzwe ikhwalithi engcono nemisindo eyengeziwe.
The Iziteshi zomsakazo we-FM ngobuchwepheshe be-DSP kungasisiza ukuthi sixazulule izinkinga eziningi, futhi senze isidlulisi sisetshenziswe emikhakheni eminingi, njengeziteshi zomsakazo zasemadolobheni ezichwepheshile, iziteshi zomsakazo zomphakathi, i-drive-in theatre, i-drive-in church njalonjalo.
Umhlinzeki Ongcono Kakhulu Wama-FM Transmitters nge-DSP Technology
The Umsakazi womsakazo we-FM ifakwe i-DSP ingasetshenziswa kabanzi ezigcawini ezihlukahlukene. Njengomunye wabaphakeli abahamba phambili bomsakazo we-FM onobuchwepheshe be-DSP, i-FMUSER ingakunikeza izixazululo ezenziwe ngokwezifiso ngokuya ngezimo zakho zokusebenzisa nobungcweti. amaphakheji wemishini yesiteshi somsakazo okuhlanganisa abasakazi bomsakazo we-FM abane-DSP yabasebenzi bomsakazo. Izinga lemikhiqizo yethu lihle ngokwanele futhi libiza amanani aphansi. Uma udinga ukwakha isiteshi sakho somsakazo futhi uthenge Abasakazi bomsakazo we-FM ngobuchwepheshe be-DSP, zizwe ukhululekile ukuxhumana nathi. Sonke siyizindlebe!
Isiphetho
Sithemba ukuthi lesi sihloko sizokusiza uqonde ubuchwepheshe be-DSP. Sicela uqhubeke ulandela i-FMSUER, futhi sizoqhubeka sikubuyekezela ulwazi oluhlobene nemishini yesiteshi somsakazo.
Q&A
Ziyini izihlungi ekucutshungulweni kwesignali yedijithali?
Ekucubunguleni isignali yedijithali, isihlungi siyidivayisi esusa izici ezithile ezingafuneki kusiginali.
Yiziphi izinhlobo zezihlungi ekucutshungulweni kwesignali yedijithali?
Kunezinhlobo ezimbili ezibalulekile zezihlungi zedijithali: i-finite impulse response (FIR) kanye ne-infinite impulse response (IIR).
Yibuphi ububi bokucubungula isignali yedijithali?
Ububi bokusebenzisa ukucubungula amasignali edijithali kufaka lokhu okulandelayo:
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