Digital signal processing

Digital signal processing

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The processing of signals which have been converted to digital form - digital signal processing - is now commonplace and this subject area is likely to grow more important in the future. The purpose of this chapter is to give an elementary grounding in digital signal processing including the process and limitations of sampling, digital filtering and spectral analysis. Quite unusually for this subject, little reference is made to mathematics, and so there are limitations to the depths of explanation.

Chapter Contents:

  • Introduction
  • 2.1 Continuous versus discrete waveforms
  • 2.2 Sampling
  • 2.3 Digital filtering
  • 2.3.1 Time domains and frequency domains
  • 2.3.2 Filter descriptions
  • 2.3.3 Types of digital filter
  • 2.4 Spectral analysis
  • 2.4.1 Discrete Fourier transform
  • 2.4.2 Fast Fourier transform
  • 2.5 Digital filtering in protection relays
  • 2.5.1 Design constraints
  • 2.5.2 Real-time considerations
  • 2.6 Further reading

Inspec keywords: signal processing; spectral analysis; filtering theory

Other keywords: digital signal processing

Subjects: Signal processing and detection

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