Engee documentation

QPSK Demodulator Baseband

Demodulate the QPSK-modulated data.

qpsk demodulator baseband

Description

The QPSK Baseband Demodulator unit demodulates a signal that has been modulated using the quadrature phase shift keying method. The input is a representation of the modulated signal in the modulating frequency band.

The input must be a complex signal. This block accepts the input signal as a scalar or column vector.

Parameters

Phase offset (rad) - phase offset (rad)
pi/4 (by default) | positive scalar | vector

Phase of the zero point of the signal constellation.

Constellation ordering - constellation ordering
Gray (By default) | `Binary `

Determines how the block maps each pair of input bits or input integers into constellation symbols.