- 专利标题： Estimation and compensation of local oscillator frequency offset and chromatic dispersion using pilot tones in spectral-shaping subcarrier modulation
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申请号： US14831123申请日： 2015-08-20
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公开(公告)号： US09647767B2公开(公告)日： 2017-05-09
- 发明人: Qing Guo , Fei Zhu , Yu Sheng Bai
- 申请人： Futurewei Technologies, Inc.
- 申请人地址： US TX Plano
- 专利权人： Futurewei Technologies, Inc.
- 当前专利权人： Futurewei Technologies, Inc.
- 当前专利权人地址： US TX Plano
- 代理机构： Conley Rose, P.C.
- 主分类号： H04B10/06
- IPC分类号： H04B10/06 ; H04B10/61 ; H04J1/02 ; H04J14/00
摘要：
A signal processing method including obtaining, using an optical receiver, a data signal that comprises one or more pairs of pilot tones and a plurality of subcarrier signals, identifying the one or more pairs of pilot tones, determining a local oscillator frequency offset estimation for the data signal using the one or more pairs of pilot tones, wherein the local oscillator frequency offset estimation indicates a frequency offset, and compensating the data signal in accordance with the local oscillator frequency offset estimation. A signal processing method including obtaining, using an optical receiver, a data signal that comprises one or more pairs of pilot tones and a plurality of subcarrier signals, identifying the one or more pairs of pilot tones, determining a chromatic dispersion estimation for the data signal using the one or more pairs of pilot tones, and compensating the data signal in accordance with the chromatic dispersion estimation.
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