CN110168967A - An Optical Receiver and Its Delay Estimation Method - Google Patents

An Optical Receiver and Its Delay Estimation Method Download PDF

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Publication number
CN110168967A
CN110168967A CN201780082891.1A CN201780082891A CN110168967A CN 110168967 A CN110168967 A CN 110168967A CN 201780082891 A CN201780082891 A CN 201780082891A CN 110168967 A CN110168967 A CN 110168967A
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China
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signal
frequency domain
sub
domain signal
delay
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CN201780082891.1A
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Chinese (zh)
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CN110168967B (en
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卢彦兆
李良川
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

一种光接收机及延时估计方法，该光接收机包括：模拟信号处理器，用于对接收的光信号进行光电转换处理，获得电信号；数字信号处理器，用于对电信号进行时频变换处理，获得频域信号；延时估计器，用于根据所述频域信号，获取所述光信号的同相分量的第一子频域信号和所述光信号的正交分量的第二子频域信号，以及根据所述第一子频域信号和所述第二子频域信号计算所述同相分量和所述正交分量的相位差；延时补偿器，用于利用所述相位差对所述光信号进行延时补偿。

An optical receiver and a delay estimation method, the optical receiver includes: an analog signal processor, used to perform photoelectric conversion processing on a received optical signal to obtain an electrical signal; a digital signal processor, used to perform time delay on the electrical signal Frequency transform processing to obtain a frequency domain signal; a delay estimator configured to obtain the first sub-frequency domain signal of the in-phase component of the optical signal and the second sub-frequency domain signal of the quadrature component of the optical signal according to the frequency domain signal A sub-frequency domain signal, and calculating the phase difference between the in-phase component and the quadrature component according to the first sub-frequency domain signal and the second sub-frequency domain signal; a delay compensator for using the phase The difference performs delay compensation on the optical signal.

Description

PCT国内申请，说明书已公开。PCT domestic application, specification has been published.

Claims (19)

PCT国内申请，权利要求书已公开。PCT domestic application, the claims have been published.
CN201780082891.1A 2017-04-24 2017-04-24 A kind of optical receiver and delay estimation method Active CN110168967B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/081706 WO2018195722A1 (en) 2017-04-24 2017-04-24 Optical receiver and delay estimation method

Publications (2)

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CN110168967A true CN110168967A (en) 2019-08-23
CN110168967B CN110168967B (en) 2020-12-22

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CN201780082891.1A Active CN110168967B (en) 2017-04-24 2017-04-24 A kind of optical receiver and delay estimation method

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CN (1) CN110168967B (en)
WO (1) WO2018195722A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024139596A1 (en) * 2022-12-29 2024-07-04 华为技术有限公司 Receiver, communication device, and system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101154958A (en) * 2006-09-29 2008-04-02 安国国际科技股份有限公司 Method for adjusting in-phase/quadrature signal
CN101548520A (en) * 2006-08-31 2009-09-30 超威半导体公司 I/Q imbalance compensation
CN201690437U (en) * 2010-05-13 2010-12-29 高宪民 Precision phase discriminator
CN102511135A (en) * 2011-02-17 2012-06-20 华为技术有限公司 Path delay inequality estimator, path delay inequality compensator and coherent receiver
US20120270516A1 (en) * 2010-10-13 2012-10-25 Young Hwan Kang Receiver for estimating and compensating for in-phase/quadrature mismatch
US20140169786A1 (en) * 2012-12-14 2014-06-19 Electronics And Telecommunications Research Institute Apparatus and method for measuring iq imbalance for optical receiver
CN104185974A (en) * 2012-03-16 2014-12-03 美国亚德诺半导体公司 Real-time i/q imbalance correction for wide-band rf receivers
CN104980377A (en) * 2014-04-03 2015-10-14 华为技术有限公司 IQ imbalance estimation and correction equipment, system and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4303760B2 (en) * 2007-02-16 2009-07-29 富士通株式会社 AD conversion control device, optical receiving device, and optical receiving method
JP5136236B2 (en) * 2008-06-19 2013-02-06 富士通株式会社 Optical receiver

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101548520A (en) * 2006-08-31 2009-09-30 超威半导体公司 I/Q imbalance compensation
CN101154958A (en) * 2006-09-29 2008-04-02 安国国际科技股份有限公司 Method for adjusting in-phase/quadrature signal
CN201690437U (en) * 2010-05-13 2010-12-29 高宪民 Precision phase discriminator
US20120270516A1 (en) * 2010-10-13 2012-10-25 Young Hwan Kang Receiver for estimating and compensating for in-phase/quadrature mismatch
CN102511135A (en) * 2011-02-17 2012-06-20 华为技术有限公司 Path delay inequality estimator, path delay inequality compensator and coherent receiver
CN104185974A (en) * 2012-03-16 2014-12-03 美国亚德诺半导体公司 Real-time i/q imbalance correction for wide-band rf receivers
US20140169786A1 (en) * 2012-12-14 2014-06-19 Electronics And Telecommunications Research Institute Apparatus and method for measuring iq imbalance for optical receiver
CN104980377A (en) * 2014-04-03 2015-10-14 华为技术有限公司 IQ imbalance estimation and correction equipment, system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024139596A1 (en) * 2022-12-29 2024-07-04 华为技术有限公司 Receiver, communication device, and system

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Publication number Publication date
WO2018195722A1 (en) 2018-11-01
CN110168967B (en) 2020-12-22

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