Keying

Offset QPSK Demodulation using GnuRadio

Offset QPSK Demodulation using GnuRadio
  1. How do you demodulate a QPSK signal?
  2. What is OQPSK?

How do you demodulate a QPSK signal?

The QPSK Demodulator Baseband block demodulates a signal that was modulated using the quadrature phase shift keying method. The input is a baseband representation of the modulated signal. The input must be a complex signal. This block accepts a scalar or column vector input signal.

What is OQPSK?

Offset quadrature phase-shift keying (OQPSK) is a variant of phase-shift keying modulation using four different values of the phase to transmit. It is sometimes called staggered quadrature phase-shift keying (SQPSK).

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