Cov yam ntxwv yooj yim ntawm cov zaus hloov pauv yuam sij (FSK) tsuas yog suav nrog cov hauv qab no:
Muaj zog tiv thaiv kev cuam tshuam Lub peev xwm: FSK cov ntaub ntawv xa cov ntaub ntawv los ntawm kev hloov pauv ntawm cov cab kuj. Qhov kev hloov no tau muaj zog tiv taus cov channel nrov thiab attenuation, yog li nws tau siv dav hauv cov ntaub ntawv nruab nrab thiab qis.
Yooj yim los siv: FSK Technology yog qhov yooj yim kuj, thiab cov txheej txheem demodulation yog qhov yooj yim rau siv.
Siv cov ntaub ntawv hluav taws xob ntau ntxiv: FSK tuaj yeem xa cov ntaub ntawv hauv kev txwv, tab sis nws cov kev siv spectrication tsawg dua li lwm cov kev coj ua xws li PSK.
Siv dav: FSK yog siv dav hauv kev sib txuas lus wireless, cov ntaub ntawv kis thiab lwm daim teb, xws li xov tooj cua hauv xov tooj cua, thiab lwm yam.
Ua haujlwm ua haujlwm ntawm tus qauv FSK kis cov ntaub ntawv digital los ntawm kev hloov pauv ntawm cov cab kuj. Tshwj xeeb, FSK siv cov kab mob PCandband mem tes los tswj cov zaus ntawm cov kab mob analog kom nws hloov pauv nrog cov kev hloov pauv ntawm tus luj membandband. Ob zaug f1 thiab F2 feem ntau siv los sawv cev binary "{0" thiab "1" feem.
Keeb kwm keeb kwm yav dhau los thiab kev thov daim ntawv teev xwm txheej
FSK yog cov txheej txheem thaum ntxov siv hauv cov ntaub ntawv kis. Nws yog dav siv hauv nruab nrab cov ntaub ntawv kis tau vim tias nws yooj yim los siv thiab muaj suab nrov zoo thiab ua kom pom zoo thiab ua kom pom zoo.
