Apply I/Q Imbalance to 16-QAM Signal in Simulink
The model applies 16-QAM modulation, applies a I/Q imbalance to a signal, and the plots the signal constellation by using a Constellation Diagram block.
Display the signal constellation with no impairment.
Display the signal constellation with amplitude imbalance impairment only.
The amplitude imbalance is: 3.00 dB.
Display the signal constellation with phase imbalance impairment only.
The phase imbalance is: 30.00 degrees.
Display the signal constellation with in-phase DC offset impairment only.
The in-phase DC offset is: 1.50.
Display the signal constellation with quadrature DC offset impairment only.
The quadrature DC offset is: 1.50.
Impairments can be applied as negative values. Display the signal constellation with all imbalance parameters set to nonzero negative impairment values.
The amplitude imbalance is: -3.00 dB. The phase imbalance is: -30.00 degrees. The in-phase DC offset is: -1.50. The quadrature DC offset is: -1.50.