Patent ID: 11899128
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 16:
17. The method of claim 15, wherein the second data captured by the ADCs include third digital samples from the first receiving channel and fourth digital samples from the second receiving channel, wherein calculating the second frequency estimate of the RFIC comprises:
multiplying the third digital samples and the fourth digital samples with the complex tone to shift the third digital samples and the fourth digital samples to baseband, wherein after being shifted to baseband, the third digital samples and the fourth digital samples have complex values; and
after multiplying the third digital samples and the fourth digital samples, calculating a third sum of the third digital samples and a fourth sum of the fourth digital samples, wherein a magnitude of the third sum and a phase of the third sum are the third amplitude estimate and the third phase estimate, respectively, and wherein a phase of the fourth sum is the fourth phase estimate.