Apparatus and method for compensating I/Q imbalance based on...

Details Apparatus and method for compensating I/Q imbalance based on... Apparatus and method for compensating I/Q imbalance based on...

2007-07-24

2007-07-24

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Receivers

Automatic gain control

Reexamination Certificate

active

10856052

ABSTRACT:
An apparatus and a method for controlling a gain of I-channel signal and compensating Q-channel signal in response to the gain imbalance based on the gain-controlled I-channel signal as a reference channel signal is disclosed. The apparatus includes: an auto gain controller for controlling a gain of a signal selected from the I-channel signal and the Q-channel signal to have a predetermined amplitude, thereby generating a gain-controlled signal; a detector for detecting a gain imbalance between the gain-controlled signal and the remaining channel signal; and a compensator for compensating the gain imbalance of the remaining channel signal based on the detected gain imbalance.

REFERENCES:
patent: 5949821 (1999-09-01), Emami et al.
patent: 6044112 (2000-03-01), Koslov
patent: 6122325 (2000-09-01), Mogre et al.
patent: 6925132 (2005-08-01), Song et al.
patent: 7010059 (2006-03-01), Song et al.
patent: 7130359 (2006-10-01), Rahman
IEICE Trans. Commun., vol.E83-B, No. 1, Jan. 2000, pp. 99-102.
Digital Filter Equalization of Analog Gain and Phase Mismatch in I-Q Receivers, pp. 793-796.
A Joint Scheme for AGC and I/Q Imbalance Compensation at QPSK Receiver, 4 pages.

Affiliated with

Also associated with

Rating

Apparatus and method for compensating I/Q imbalance based on... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for compensating I/Q imbalance based on..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for compensating I/Q imbalance based on... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3820502