Method and system for correcting receiver mixer IQ mismatch

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

2011-08-30

2011-08-30

Jackson, Blane J (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S296000

Reexamination Certificate

active

08010076

ABSTRACT:
A system for correcting an IQ mismatch in a receiver mixer is disclosed and may include one or more circuits that generate an IQ correlation with a training signal having periodic, uncorrelated I and Q signals. The one or more circuits may estimate a gain mismatch based on a power estimate of the periodic, uncorrelated I and Q signals over a unit period. The one or more circuits may estimate a phase mismatch based on the IQ correlation over the unit period, and may apply at least one correction parameter to the receiver mixer. The at least one correction parameter may be based on the gain mismatch estimate and the phase mismatch estimate. The one or more circuits may provide the training signal on a closed RF signal path between a transmitter and the receiver mixer, and may estimate the IQ mismatch iteratively.

REFERENCES:
patent: 5249203 (1993-09-01), Loper
patent: 5604929 (1997-02-01), Loper et al.
patent: 5828955 (1998-10-01), Lipowski et al.
patent: 6670900 (2003-12-01), Zhang
patent: 6760577 (2004-07-01), Li
patent: 6842489 (2005-01-01), Masenten
patent: 6977977 (2005-12-01), Dubrovin et al.
patent: 7020220 (2006-03-01), Hansen
patent: 7146146 (2006-12-01), Masenten et al.
patent: 7187916 (2007-03-01), Mo et al.
patent: 7248625 (2007-07-01), Chien
patent: 2003/0223480 (2003-12-01), Cafarella
patent: 2004/0038649 (2004-02-01), Lin et al.
patent: 2005/0107059 (2005-05-01), Lehning et al.

Affiliated with

Also associated with

Rating

Method and system for correcting receiver mixer IQ mismatch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for correcting receiver mixer IQ mismatch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for correcting receiver mixer IQ mismatch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2642497