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a Repeat Problem 7 11 for the case when the binary sequence 11100101 is applied to a PSK modulator assuming that the line encoder and sinusoidal carrier wave oscillator are operated from a common

(a) Repeat Problem 7.11 for the case when the binary sequence 11100101 is applied to a PSK modulator, assuming that the line encoder and sinusoidal carrier-wave oscillator are operated from a common clock.

 

(b) Repeat your calculations, assuming that the line encoder and carrier-wave oscillator operate independently.

Problem 7.11

The binary sequence 11100101 is applied to an ASK modulator. The bit duration is and the sinusoidal carrier wave used to represent symbol 1 has a frequency equal to 7 MHz.

(a) Find the transmission bandwidth of the transmitted signal.

(b) Plot the waveform of the transmitted ASK signal.

Assume that the line encoder and the carrier-wave oscillator are controlled by a common clock.

Jul 30 2020 View more View Less

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