Q. Signal to noise ratio is highest in

A
PWM
B
PPM
C
PAM
D
PPM and PWM
Solution:

Signal to noise Ratio (SNR) In PWM (Pulse width modulation, SNR is moderate In PDM (Pulse position Modulation), SNR is high while in PAM (Pulse Amplitude Modulation), SNR is low. So option (b) is correct

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