发明申请
- 专利标题: Techniques for Calibrating a Transceiver of a Communication Device
- 专利标题(中): 用于校准通信设备的收发器的技术
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申请号: US12191831申请日: 2008-08-14
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公开(公告)号: US20100041353A1公开(公告)日: 2010-02-18
- 发明人: Ronald C. Alford , Leo G. Dehner , Richard B. Meador , Christian J. Rotchford
- 申请人: Ronald C. Alford , Leo G. Dehner , Richard B. Meador , Christian J. Rotchford
- 主分类号: H04B17/00
- IPC分类号: H04B17/00
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.
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