发明名称 Techniques for calibrating a transceiver of a communication device
摘要 A technique for calibrating a transceiver of a wireless communication device includes selectively coupling an output node of a transmitter of the transceiver to an input node of a receiver of the transceiver. A calibration signal is provided, from the output node of the transmitter, to the input node of the receiver. The calibration signal is down-converted, with the receiver, to provide a down-converted calibration signal. A discrete Fourier transform is performed on the down-converted calibration signal. Finally, one or more correction factors are determined based on an analysis of the discrete Fourier transform of the down-converted calibration signal. At least one of the correction factors is utilized to facilitate substantial cancellation of a direct current offset associated with the transceiver.
申请公布号 US7986925(B2) 申请公布日期 2011.07.26
申请号 US20080191831 申请日期 2008.08.14
申请人 FREESCALE SEMICONDUCTOR, INC. 发明人 ALFORD RONALD C.;DEHNER LEO G.;MEADOR RICHARD B.;ROTCHFORD CHRISTIAN J.
分类号 H03C1/62 主分类号 H03C1/62
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