- 专利标题: Receiver synchronization using punctured preamble
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申请号: US9975申请日: 1998-01-21
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公开(公告)号: US5905762A公开(公告)日: 1999-05-18
- 发明人: Donald R. Stephens
- 申请人: Donald R. Stephens
- 申请人地址: MA Lexington
- 专利权人: Raytheon Company
- 当前专利权人: Raytheon Company
- 当前专利权人地址: MA Lexington
- 主分类号: H03J7/02
- IPC分类号: H03J7/02 ; H04L7/04 ; H04L27/227 ; H04L27/233 ; H03D3/24 ; H04L7/00
摘要:
A receiver carrier synchronization apparatus and method for carrier synchronization with a received signal having a known data pattern preamble uses a "punctured" preamble for making carrier synchronization estimates thereby reducing the number of receivers required. The known data pattern preamble of the received signal is processed with a local reference signal and a differentiated replica of the known data pattern preamble to generate an error signal. The error signal is selectively sampled in the time domain in accordance with a puncture scheme, and the sampled error signal is used to generate the local reference signal in a closed loop. The received signal is processed with the local reference signal and a replica of the known data pattern preamble to generate a synchronization estimate signal.
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