- 专利标题: Systems and methods for carrier phase recovery
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申请号: US17077906申请日: 2020-10-22
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公开(公告)号: US11387929B1公开(公告)日: 2022-07-12
- 发明人: Junwen Zhang , Zhensheng Jia , Mu Xu , Haipeng Zhang , Luis Alberto Campos , Curtis Dean Knittle
- 申请人: CABLE TELEVISION LABORATORIES, INC
- 申请人地址: US CO Louisville
- 专利权人: CABLE TELEVISION LABORATORIES, INC
- 当前专利权人: CABLE TELEVISION LABORATORIES, INC
- 当前专利权人地址: US CO Louisville
- 代理机构: Armstrong Teasdale LLP
- 主分类号: H04J14/06
- IPC分类号: H04J14/06 ; H04B10/61 ; H04B10/67
摘要:
A digital receiver is configured to process a polarization multiplexed carrier from a communication network. The polarization multiplexed carrier includes a first polarization and a second polarization. The receiver includes a first lane for transporting a first input signal of the first polarization, a second lane for transporting a second input signal of the second polarization, a dynamic phase noise estimation unit disposed within the first lane and configured to determine a phase noise estimate of the first input signal, a first carrier phase recovery portion configured to remove carrier phase noise from the first polarization based on a combination of the first input signal and a function of the determined phase noise estimate, and a second carrier phase recovery portion configured to remove carrier phase noise from the second polarization based on a combination of the second input signal and the function of the determined phase noise estimate.
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