Method and system for measuring receiver mixer IQ mismatch

Details Method and system for measuring receiver mixer IQ mismatch Method and system for measuring receiver mixer IQ mismatch

2007-03-06

2007-03-06

Urban, Edward F. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S296000, C455S324000, C375S346000

Reexamination Certificate

active

10774116

ABSTRACT:
Aspects for measuring receiver mixer IQ mismatch in a transceiver are described. The measuring includes providing a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals. A phase mismatch in the receiver mixer is determined from IQ correlation over a unit period. A gain mismatch in the receiver mixer is determined from a power estimate of both I and Q signal for the unit period.

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