Lub diode ntes yog daim ntawv yooj yim ntawm kev ntes lossis demodulator siv rau AM demodulation - nws pom lub hnab ntawv AM teeb liab. Lub diode ntes yog qhov yooj yim tshaj plaws thiab yooj yim tshaj plaws ntawm amplitude modulation, AM teeb liab ntes thiab nws ntes lub hnab ntawv ntawm AM teeb liab.
Dab tsi yog tus demodulator siv rau AM?
Lub hnab ntim khoom yog siv los ntes (demodulate) qib siab AM yoj. … Li no, lub hnab ntawv ntes kuj hu ua diode detector. Cov lim dej qis dhau muaj qhov sib txuam ua ke ntawm cov resistor thiab lub capacitor. Lub AM yoj s(t) yog siv los ua ib qho kev tawm tswv yim rau qhov ntsuas no.
Qhov twg hauv qab no yog AM demodulation cov txheej txheem?
Lub synchronous AM demodulator siv lub mixer lossis khoom ntesnrog lub teeb liab oscillator hauv zos. Lub teeb liab oscillator hauv zos yog synchronized rau cov khoom xa tuaj rau lub teeb liab kom nws ua tsis muaj ntawv ceeb toom nrog cov khoom xa tuaj. Lub sidebands ntawm lub teeb liab AM yog tom qab ntawd demodulated los muab lub teeb liab xav tau.
hom AM yog dab tsi?
Type of Amplitude modulation:
- Double Sideband Suppressed Carrier (DSB SC) Taw qhia. Mathematical Expression: …
- Ob sab-band tag nrho cov neeg nqa khoom (Tswj Amplitude Modulation) Taw qhia. …
- Quadrature Amplitude Modulation (QAM) Block Diagram. …
- Ib sab band (SSB) Bandwidth. …
- Vestigial sideband (VSB) Bandwidth.
Tus demodulator ua haujlwm li cas?
Demodulation. Lub txheej txheem ntawm kev cais cov ntaub ntawv qub lossis SIGNAL los ntawm MODULATED CARRIERNyob rau hauv rooj plaub ntawm AMPLITUDE lossis FREQUENCY MODULATION nws suav nrog ib qho khoom siv, hu ua demodulator lossis detector, uas ua rau lub teeb liab sib xws rau cov kev hloov pauv tam sim hauv amplitude lossis zaus, feem.
