OQPSK and /4 QPSK which are discussed subsequently 33 QUADRATURE (OR) QUATERNARY PHASE SHIFT KEYING (QPSK)

This text excerpt mentions Quadrature Phase Shift Keying (QPSK) and its variants, Offset QPSK (OQPSK) and π/4-QPSK. It’s a fragment from a larger discussion on digital modulation techniques, likely from a telecommunications or signal processing textbook. To provide a helpful breakdown, I need a specific question. For example, you could ask:

  • “Explain the difference between QPSK, OQPSK, and π/4-QPSK.”
  • “What are the advantages and disadvantages of QPSK?”
  • “How is QPSK demodulated?”

Please provide a specific question about QPSK, OQPSK, or π/4-QPSK so I can give you a step-by-step solution.

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