Method and system for detecting and correcting in-phase/quadratu

Details Method and system for detecting and correcting in-phase/quadratu Method and system for detecting and correcting in-phase/quadratu

1998-02-04

2000-09-19

Pham, Chi H.

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

375235, 375349, 375268, H04L 512

Patent

active

061223255

ABSTRACT:
The invention provides a method and system for correcting imbalance in in-phase and quadrature components of a modulated received signal. The method includes assuming a signal imbalance to exist in the received signal, the signal imbalance having an amplitude imbalance and a phase imbalance, generating an amplitude imbalance correction factor and a phase imbalance correction factor to lessen the signal imbalance, and re-evaluating the amplitude and phase imbalance correction factors over a set of readings of the in-phase and quadrature components until the signal imbalance is minimized.

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patent: 5870439 (1999-02-01), Ben-Efraim et al.
patent: 5872538 (1999-02-01), Fowler
patent: 5937341 (1999-08-01), Suominen
patent: 5949821 (1999-09-01), Emami et al.
patent: 6009317 (1999-12-01), Wynn

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