MULTIPLE-TAP IQ COMPENSATION AND CALIBRATION

MULTIPLE-TAP IQ COMPENSATION AND CALIBRATION

Corrections are provided for mismatches between an in-phase (I) signal and a quadrature-phase (Q) signal, the I and Q signals having a first frequency band. A frequency filter circuit filters the I and Q signals to produce a filtered I and Q output with a second frequency band that is a subset of th...

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Hauptverfasser: RUTTEN, Robert, BOLATKALE, Muhammed, BAJORIA, Shagun, BREKELMANS, Johannes Hubertus Antonius, NIEHOF, Jan, BREEMS, Lucien Johannes
Format: Patent
Sprache:eng ; fre ; ger
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BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator RUTTEN, Robert
BOLATKALE, Muhammed
BAJORIA, Shagun
BREKELMANS, Johannes Hubertus Antonius
NIEHOF, Jan
BREEMS, Lucien Johannes
description Corrections are provided for mismatches between an in-phase (I) signal and a quadrature-phase (Q) signal, the I and Q signals having a first frequency band. A frequency filter circuit filters the I and Q signals to produce a filtered I and Q output with a second frequency band that is a subset of the first frequency band. Digital circuitry includes a multiple-tap correction filter having a plurality of taps and configured to generate I and Q output signals by filtering the I and Q signals according to respective sets of coefficients for the plurality of taps. A coefficient estimator generates the sets of coefficients relative to different frequency bands.
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subjects BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title MULTIPLE-TAP IQ COMPENSATION AND CALIBRATION
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