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</p> Signup and view all the answers

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

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

    What does each phase in PSK encode?

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

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