Phase-Shift Keying (PSK) Quiz
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Questions and Answers

What does PSK stand for in the context of digital modulation?

  • Polarized Spectrum Kinesis
  • Packet-Switched Kernel
  • Phase-Shift Keying (correct)
  • Pulse-Shape Kinetics

How is the modulation in PSK accomplished?

  • By adjusting the phase of the carrier wave randomly
  • By altering the amplitude of the carrier wave
  • By varying the sine and cosine inputs at a precise time (correct)
  • By changing the frequency of the carrier wave

What does each phase in PSK encode?

  • A variable number of bits
  • An equal number of bits (correct)
  • An increasing number of bits
  • An alternating pattern of bits

What is required for the demodulator in PSK?

<p>To be able to compare the phase of the received signal to a reference signal (C)</p> Signup and view all the answers

What type of system is required for coherent demodulation in PSK?

<p>A system termed coherent (B)</p> Signup and view all the answers

In PSK, how is the modulation accomplished?

<p>By changing the phase of a constant frequency carrier wave (A)</p> Signup and view all the answers

What is the role of the demodulator in PSK?

<p>Determines the phase of the received signal and maps it back to the symbol it represents (A)</p> Signup and view all the answers

What does each phase in PSK encode?

<p>An equal number of bits (C)</p> Signup and view all the answers

What is required for coherent demodulation in PSK?

<p>The receiver to be able to compare the phase of the received signal to a reference signal (D)</p> Signup and view all the answers

What is the main characteristic of a digital modulation scheme like PSK?

<p>Uses a finite number of distinct signals to represent digital data (C)</p> Signup and view all the answers

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