In Pulse Amplitude Modulation (PAM), the carrier wave is a periodic train of pulses. The frequency of this pulse train is equivalent to the sampling rate at which the message signal is sampled. This sampling rate must adhere to Nyquist's sampling theorem for proper reconstruction of the message signal.
In PAM, the carrier wave consists of a periodic train of rectangular pulses and the carrier frequency is equal to
Asked in GS&EI ElectEngg 14 2024 1601 2025 · Topic: Computer and Information Technology (Data Acquisition Systems and Signal Processing in Experimental Physics)
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Answer: B. the sampling rate of the modulating signal
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