| 摘要 |
A method and an apparatus for calibrating an IQ(In-phase Quadrature) mismatch, a carrier leakage, and a DC offset are provided to prevent RF transmission and reception from being interrupted by a calibration process by performing the calibration process during a guard interval. An apparatus for calibrating an IQ mismatch, a carrier leakage, and a DC offset includes an RF(Radio Frequency) transceiver(10), a temperature sensor(50), and a digital signal processor(30). During a normal operation period for at least one of a wireless transmission interval and a wireless reception interval, the RF transceiver up-converts a transmission digital signal to a transmission RF signal, and delivers the transmission RF signal to an antenna. The RF transceiver down-converts a reception RF signal to a reception digital signal. The digital signal processor perform a calibration process on at least one of the IQ mismatch, the carrier leakage, and the DC offset according to a temperature measured by the temperature sensor.
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