发明授权
- 专利标题: Offset correction for a homodyne radio
- 专利标题(中): 零差收音机的偏移校正
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申请号: US549363申请日: 1995-10-27
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公开(公告)号: US5748681A公开(公告)日: 1998-05-05
- 发明人: Vittorio Comino , Gerard Joseph Foschini , Isam M. Habbab , Sanjay Kasturia , Jack Salz , Michael Edward Prise , Ravi Subramanian
- 申请人: Vittorio Comino , Gerard Joseph Foschini , Isam M. Habbab , Sanjay Kasturia , Jack Salz , Michael Edward Prise , Ravi Subramanian
- 申请人地址: NJ Murrvay Hill
- 专利权人: Lucent Technologies Inc
- 当前专利权人: Lucent Technologies Inc
- 当前专利权人地址: NJ Murrvay Hill
- 主分类号: H04L7/027
- IPC分类号: H04L7/027 ; H04L7/04 ; H04L7/10 ; H04L25/06
摘要:
DC offset cancellation and timing recovery is provided in a homodyne receiver. The homodyne receiver demodulates an RF signal to produce a baseband signal. An initial offset correction module determines an initial DC offset of the baseband signal. An initial offset correction is applied to the baseband signal to provide an initial corrected baseband signal. Wherein, a dynamic DC offset correction module determines a dynamic DC offset. A dynamic DC offset correction is applied to the initial corrected baseband signal providing a dynamic corrected baseband signal. A timing signal is acquired from the baseband signal for synchronizing the receiver to a transmitter. A method for correcting DC offset of a baseband signal in a homodyne receiver is also described.
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