CN113796052A - 一种信号预补偿的方法和装置 - Google Patents

一种信号预补偿的方法和装置 Download PDF

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CN113796052A
CN113796052A CN202180003235.4A CN202180003235A CN113796052A CN 113796052 A CN113796052 A CN 113796052A CN 202180003235 A CN202180003235 A CN 202180003235A CN 113796052 A CN113796052 A CN 113796052A
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CN113796052B (zh
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索洛夫·德米特里
陈杰
田甲申
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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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • 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
    • H04B10/50—Transmitters
    • H04B10/58—Compensation for non-linear transmitter output
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6164—Estimation or correction of the frequency offset between the received optical signal and the optical local oscillator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion

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

Abstract

提供了一种信号预补偿的方法和装置，应用于光信号发送设备，该方法包括：从第一光信号的多个子频带中确定至少一个目标子频带；根据至少一个目标子频带，对第一光信号中至少一个目标子频带的光信号进行解调，解调后得到第一电信号；根据至少一个目标子频带、第一电信号和第二电信号，更新预补偿参数，预补偿参数用于对第二电信号进行信号预补偿，第二电信号经过预补偿后生成第一光信号。由于预补偿参数的更新无需依赖接收设备的反馈，能够降低了因配置反馈通道而产生的成本，减少了预补偿参数更新的时延，提高了预补偿处理的准确性，进而提高通信性能。并且，由于对目标子频带的光信号的解调，降低解调器件的带宽要求，进而降低成本。

Description

PCT国内申请，说明书已公开。

Claims (22)

  1. PCT国内申请，权利要求书已公开。
CN202180003235.4A 2020-03-13 2021-03-02 一种信号预补偿的方法和装置 Active CN113796052B (zh)

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CN114326924A (zh) * 2022-03-03 2022-04-12 阿里巴巴达摩院(杭州)科技有限公司 信号处理方法和存储介质
CN114401045A (zh) * 2022-01-07 2022-04-26 深圳创维－Rgb电子有限公司 应用于可见光通信的模拟预失真***及方法

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US20180183521A1 (en) * 2016-12-28 2018-06-28 Zte Corporation Optical pulse amplitude modulation transmission using digital pre-compensation

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ITMI20010443A1 (it) * 2001-03-02 2002-09-02 Marconi Comm Spa Metodo e apparati per la rilevazione e compensazione di parametri della pmd in segnali trasmessi lungo collegamenti a fibre ottiche e sistem
US7756421B2 (en) * 2002-10-03 2010-07-13 Ciena Corporation Electrical domain compensation of non-linear effects in an optical communications system
DE60220507T2 (de) * 2002-12-05 2007-09-27 Agilent Technologies Inc., Santa Clara Steuerung einer optischen Quelle unter Verwendung einer Schwebungsfrequenz
WO2008119164A1 (en) * 2007-03-30 2008-10-09 Nortel Networks Limited Amplifier pre-distortion systems and methods
WO2014063295A1 (zh) * 2012-10-22 2014-05-01 华为技术有限公司 一种电光调制装置、方法、发射机及电光调制***
US8890609B2 (en) * 2012-11-20 2014-11-18 Telefonaktiebolaget L M Ericsson (Publ) Systems and methods for band-limited adaptation for PA linearization
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JP6661263B2 (ja) * 2014-09-03 2020-03-11 富士通株式会社 光伝送装置、非線形歪み補償方法及び非線形歪み予等化方法
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CN107306241A (zh) * 2016-04-18 2017-10-31 中兴通讯股份有限公司 一种信号预补偿的方法、装置以及信号发射机

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US20180183521A1 (en) * 2016-12-28 2018-06-28 Zte Corporation Optical pulse amplitude modulation transmission using digital pre-compensation
CN107911149A (zh) * 2017-12-26 2018-04-13 武汉邮电科学研究院 一种相干光通信中的多普勒频移补偿***和补偿方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114401045A (zh) * 2022-01-07 2022-04-26 深圳创维－Rgb电子有限公司 应用于可见光通信的模拟预失真***及方法
CN114401045B (zh) * 2022-01-07 2024-03-12 深圳创维－Rgb电子有限公司 应用于可见光通信的模拟预失真***及方法
CN114326924A (zh) * 2022-03-03 2022-04-12 阿里巴巴达摩院(杭州)科技有限公司 信号处理方法和存储介质

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WO2021179953A1 (zh) 2021-09-16
US20230006743A1 (en) 2023-01-05
EP4109833A1 (en) 2022-12-28
EP4109833A4 (en) 2023-07-26
CN113796052B (zh) 2022-09-23

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