DSP Final Revision Exercise 1

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Questions and Answers

What is the definition of amplification?

  • The process of decreasing the amplitude of a signal
  • The process of converting an analogue signal to a digital signal
  • The process of increasing the amplitude of a signal (correct)
  • The process of modifying the frequency of a signal

How would you define filtering?

  • The process of removing unwanted parts of a signal (correct)
  • The process of increasing the amplitude of a signal
  • The process of decreasing the amplitude of a signal
  • The process of modifying the frequency of a signal

What does rectification involve?

  • Converting an analogue signal to a digital signal
  • Increasing the frequency of a signal
  • Making a waveform purely negative
  • Making a waveform purely positive (correct)

What is the difference between a discrete time signal and a digital signal?

<p>A discrete time signal is quantized in time only, a digital signal is quantized both in time and amplitude (D)</p> Signup and view all the answers

What is modulation?

<p>The process of multiplying a signal by another signal (A)</p> Signup and view all the answers

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