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Light modulation method

Answer

Digital modulation

  • Phase Shift Keying
    (PSK: Phase Shift Keying)
  • Frequency Shift Keying
    (FSK: Frequency Shift Keying)
  • Amplitude Shift Keying
    (ASK: Amplitude Shift Keying)
  • Quadrature amplitude modulation
    (QAM: Quadrature amplitude modulation)

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