METHOD OF CALIBRATING I/Q CHARACTERISTIC, I/Q DEMODULATOR, I/Q MODULATOR, AND I/Q MODEM

PROBLEM TO BE SOLVED: To suppress an increase in I/Q phase and amplitude errors causing I/Q imbalance even if increasing a frequency. SOLUTION: A calibration signal, which does not include the I/Q imbalance causing the I/Q amplitude and phase errors, is generated, the calibration signal is used to a...

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Bibliographische Detailangaben

Hauptverfasser:	KAWAI KOJIRO, SASATANI MASAKI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MODULATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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