9 mod analog_am_fm (1)

Modulación Analógica (AM-FM) Cx Eléctricas 09 – E.Tapia

Modulación de Onda CC (CW) ,[object Object],[object Object]

Modulation -Demodulation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Modulation ,[object Object],[object Object]

Amplitude Modulation ,[object Object],[object Object],[object Object]

Some issues on AM ,[object Object],[object Object],[object Object],[object Object]

Note that ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DSB-SC- (Double SideBand-Supressed Carrier)

Note that ,[object Object],[object Object]

SSB MOdulation ,[object Object],[object Object],[object Object]

VSB – Vestigial Sideband Modulation

Frequency Modulation (FM) ,[object Object],[object Object]

Which is the FM angle? ,[object Object],[object Object]

Noise in CW Modulation ,[object Object],[object Object],[object Object]

SNRs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Noise in DSB Coherent Detection ,[object Object],[object Object],[object Object],[object Object]

Figure of Merit in Coherent Detection ,[object Object],[object Object],[object Object]

Figure …. ,[object Object],[object Object],[object Object]

Figures of Merit ,[object Object],[object Object],[object Object],[object Object]

Threshold effect in AM Detectors

Noise Effects in FM ,[object Object]

Noise Model for FM ,[object Object],[object Object]

Discriminator Output ,[object Object]

Cont’ ,[object Object],[object Object],[object Object]

The conclusion ,[object Object],[object Object]

Threshold Effect in FM ,[object Object],[object Object],[object Object],[object Object]

No signal but Noise ,[object Object],[object Object],[object Object],is around

Alternatevely ,[object Object]

Threshold Effect ,[object Object],[object Object]

Designing an FM System ,[object Object],[object Object],[object Object],[object Object]

FM Threshold Reduction ,[object Object]

FM Threshold Reduction The VCO output The phase comparator output

Linear Model of the PLL-FM Demodulator

PreEmphasis - Deemphasis ,[object Object],[object Object]

Pre-emphasis & De-emphasis ,[object Object],[object Object]

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