Ib tus neeg sib txawv zaus txhais tau tias yog tus hloov pauv zaus hloov pauv mus rau qhov hloov pauv hloov pauv Cov neeg ntxub ntxaug yog siv ntau yam kev siv, ib qho yog qhov ncaj qha demodulation ntawm zaus modulated signals [1, 2] ib. Kev sib xyaw cov teeb liab dav dav mus rau qhov nruab nrab zaus nruab nrab zaus Hauv kev sib txuas lus thiab kev tsim hluav taws xob, qhov nruab nrab zaus (IF) yog ib zaus uas cov neeg nqa khoom nthwv dej hloov pauv raws li theem nrab hauv kev sib kis lossis txais tos… Thaum siv ob peb theem ntawm cov ntxaij lim dej, lawv tuaj yeem raug teeb tsa mus rau qhov zaus, uas ua rau lawv yooj yim rau kev tsim thiab kho. https://en.wikipedia.org › wiki › Intermediate_frequency
Intermediate zaus - Wikipedia
tuaj yeem ua haujlwm nyuaj.
Dab tsi yog qhov sib txawv ntawm qhov kev ntxub ntxaug ntau zaus?
Muaj ntau hom FM demodulators suav nrog:
- Slope Detector.
- Foster-Seeley Discriminator.
- Ratio Detector.
- Pulse-Averaging Discriminators.
- Quadrature Detectors.
- Phase-Locked Loops.
Digital frequency discriminator yog dab tsi?
Wide Band Systems 'Digital Frequency Discriminators ua tau raws li qhov yuav tsum tau ua ntawm cov khoom siv bandwidth, qhov tseeb, thiab kev daws teeb meem. Cov kev teeb tsa modular tso cai ntau zaus ntawm 0.5 GHz txog 18 GHz. …
cov neeg ntxub ntxaug ua dab tsi?
Lub hom phiaj ntawm tus neeg ntxub ntxaug yog txiav txim siab thaum lub tswv yim yog ib yam dab tsi uas koj txaus siab rau Nws ua qhov no los ntawm kev tso tawm lub logic mem tes thaum lub teeb liab tawm tswv yim ua tau raws li tus nqi pib kho.. Tag nrho cov kev ntxub ntxaug poob rau hauv ib qho ntawm ob pawg, cov thawj coj lossis cov feem tsis tu ncua.
Dab tsi yog kev ntxub ntxaug hauv kev sib txuas lus?
Ib tus neeg ntxub ntxaug yog tsim los ntawm heterodyning hauv lub ntsuas nrawm cov teb tau cuam tshuam los ntawm kab noj hniav, thiab theem-sensitively kuaj xyuas qhov sib tw zaus tawm tsam rf modulation qhov chaw.
