Identify four different kinds of modulation methods.
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- With reference to AM define modulation index (or) depth of modulation.Explain the difference between multiplexing and demultiplexing.Following are the characteristics of a modulation scheme i) It is an angle modulation, with noise immunity ii) It requires a larger bandwidith The name of the scheme is DSBSC O FM SSBSC О РСМ
- Differentiate between periodic pulse trains and non-periodic pulse trains in the context of digital signals.The most likely type of modulation to be used in motor speed control is(a) PAM (b) PPM(c) PWM (d) QAMThe maximum frequency deviation of the carrier is + 15 kHz and the maximum modulating frequency is 3 kHz, calculate for the modulation index.