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 PDFInfo
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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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- 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
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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
- H04B10/50—Transmitters
- H04B10/58—Compensation for non-linear transmitter output
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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
- 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
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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
- 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
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- 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)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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RU2020110701 | 2020-03-13 | ||
RU2020110701 | 2020-03-13 | ||
PCT/CN2021/078629 WO2021179953A1 (zh) | 2020-03-13 | 2021-03-02 | 一种信号预补偿的方法和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113796052A true CN113796052A (zh) | 2021-12-14 |
CN113796052B CN113796052B (zh) | 2022-09-23 |
Family
ID=77671204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202180003235.4A Active CN113796052B (zh) | 2020-03-13 | 2021-03-02 | 一种信号预补偿的方法和装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230006743A1 (zh) |
EP (1) | EP4109833A4 (zh) |
CN (1) | CN113796052B (zh) |
WO (1) | WO2021179953A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US20180183521A1 (en) * | 2016-12-28 | 2018-06-28 | Zte Corporation | Optical pulse amplitude modulation transmission using digital pre-compensation |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
WO2014189897A1 (en) * | 2013-05-20 | 2014-11-27 | Analog Devices, Inc. | Relaxed digitization system linearization |
CN103401513B (zh) * | 2013-08-02 | 2016-02-10 | 武汉邮电科学研究院 | 一种功率放大器的数字预失真处理方法和装置 |
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 |
US10050710B2 (en) * | 2015-05-26 | 2018-08-14 | Maxlinear, Inc. | Transmit optical sub-assembly with local feedback |
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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2021
- 2021-03-02 WO PCT/CN2021/078629 patent/WO2021179953A1/zh unknown
- 2021-03-02 CN CN202180003235.4A patent/CN113796052B/zh active Active
- 2021-03-02 EP EP21768053.7A patent/EP4109833A4/en active Pending
-
2022
- 2022-09-09 US US17/941,360 patent/US20230006743A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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)
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 |
Also Published As
Publication number | Publication date |
---|---|
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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