Receiver image calibration with noise from a power amplifier

A processing circuit in a first receive path of a homodyne receiver, the processing circuit configured to estimate and correct an IQ error in the first receive path, the processing circuit comprising;

• an IQ error estimation circuit configured to estimate an amplitude error based at least in part on a first function of I and Q samples and estimate a phase error based at least in part on a second function of the I and Q samples, the estimate of the amplitude error being further based at least in part on a prior estimate of the amplitude error and the estimate of the phase error being further based at least in part on a prior estimate of the phase error, the amplitude and phase errors arising from noise that is coupled to the first receive path when a portion of transceiver circuitry of the homodyne receiver is disabled;
• and
• an IQ correction circuit in electrical communication with the IQ error estimation circuit, the IQ correction circuit configured to correct the I and Q samples in the first receive path when the portion of transceiver circuitry of the homodyne receiver is subsequently reenabled, the corrections to the I and Q samples being based at least in part on the estimated amplitude and phase error.