CN112703677A - 信号处理方法及系统 - Google Patents

信号处理方法及系统 Download PDF

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Publication number
CN112703677A
CN112703677A CN201880097106.4A CN201880097106A CN112703677A CN 112703677 A CN112703677 A CN 112703677A CN 201880097106 A CN201880097106 A CN 201880097106A CN 112703677 A CN112703677 A CN 112703677A
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signal
value
processing
envelope
digital predistortion
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CN201880097106.4A
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CN112703677B (zh
Inventor
任志雄
司小书
欧阳涛
彼得·路易斯·吉拉伯特
加西亚·加西亚 何塞·安赫尔
盖布里尔·蒙托罗
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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
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/36—Indexing scheme relating to amplifiers the amplifier comprising means for increasing the bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0425—Circuits with power amplifiers with linearisation using predistortion

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Amplifiers (AREA)

Abstract

本申请实施例提供了一种信号处理方法及系统，涉及通信领域，该系统包括：基带信号处理模块用于对第一信号进行慢包络处理，以获取经慢包络处理后的所述第一信号的包络值E(n)；基于所述包络值E(n)，获取相位值θ(n)，其中，所述θ(n)与所述E(n)呈线性关系；以及，依据所述θ(n)，将所述第一信号分离为第二信号与第三信号，所述第二信号与所述第三信号的相位差为2θ(n)；所述放大器，用于对所述第二信号与所述第三信号进行放大处理；所述合成器，用于对放大后的所述第二信号与所述第三信号进行合成，以获取所述第四信号。从而降低对放大器的带宽要求，以提升放大器的增益和效率，进而提高系统的整体性能。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN201880097106.4A 2018-09-07 2018-09-07 信号处理方法及系统 Active CN112703677B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/104648 WO2020047853A1 (zh) 2018-09-07 2018-09-07 信号处理方法及系统

Publications (2)

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CN112703677A true CN112703677A (zh) 2021-04-23
CN112703677B CN112703677B (zh) 2021-12-28

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US (1) US11411587B2 (zh)
CN (1) CN112703677B (zh)
WO (1) WO2020047853A1 (zh)

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US5929710A (en) * 1997-03-20 1999-07-27 National Semiconductor Corporation Cascode single-ended to differential converter
DE10015833A1 (de) * 2000-03-30 2001-10-11 Red Chip Co Niederfrequenz-Schaltung zur Dynamikbegrenzung
US20070082628A1 (en) * 2004-10-22 2007-04-12 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including multiple input single output (MISO) amplifier embodiments
CN101110595A (zh) * 2006-07-21 2008-01-23 联发科技股份有限公司 多级linc发射器
CN101651459A (zh) * 2009-09-15 2010-02-17 电子科技大学 高效率线性linc发射机
CN103166578A (zh) * 2011-12-08 2013-06-19 富士通株式会社 放大器
US20140118063A1 (en) * 2012-10-30 2014-05-01 Eta Devices, Inc. RF Amplifier Architecture and Related Techniques
CN108336975A (zh) * 2018-01-05 2018-07-27 中兴通讯股份有限公司 异相功率放大器及其实现输出匹配的方法和装置、功放支路

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JPH0974320A (ja) * 1995-09-05 1997-03-18 Nippon Motorola Ltd 定振幅波合成型電力増幅回路
US7826553B2 (en) * 2006-07-21 2010-11-02 Mediatek Inc. Multilevel LINC transmitter
WO2008144017A1 (en) * 2007-05-18 2008-11-27 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2012023624A1 (ja) * 2010-08-15 2012-02-23 フォーダン株式会社 包絡線追跡型電源を用いたシレー電力増幅方法および送信機
US9190967B2 (en) * 2013-03-13 2015-11-17 Futurewei Technologies Inc. Apparatus and method for asymmetrically driven partial outphasing power amplifier
CN104283573B (zh) * 2014-09-16 2016-11-09 电子科技大学 一种改进linc发射机效率的方法及其装置
US10148228B2 (en) * 2016-12-20 2018-12-04 Nxp Usa, Inc. RF power amplifier bias modulation with programmable stages
WO2019054980A1 (en) * 2017-09-12 2019-03-21 Intel Corporation DIGITAL PREDISTORTION OF SIGNALS

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929710A (en) * 1997-03-20 1999-07-27 National Semiconductor Corporation Cascode single-ended to differential converter
DE10015833A1 (de) * 2000-03-30 2001-10-11 Red Chip Co Niederfrequenz-Schaltung zur Dynamikbegrenzung
US20070082628A1 (en) * 2004-10-22 2007-04-12 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including multiple input single output (MISO) amplifier embodiments
CN101110595A (zh) * 2006-07-21 2008-01-23 联发科技股份有限公司 多级linc发射器
CN101651459A (zh) * 2009-09-15 2010-02-17 电子科技大学 高效率线性linc发射机
CN103166578A (zh) * 2011-12-08 2013-06-19 富士通株式会社 放大器
US20140118063A1 (en) * 2012-10-30 2014-05-01 Eta Devices, Inc. RF Amplifier Architecture and Related Techniques
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邓向科: "基于F类功率放大器的移相发射机研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 *

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Publication number Publication date
US20210218427A1 (en) 2021-07-15
WO2020047853A1 (zh) 2020-03-12
CN112703677B (zh) 2021-12-28
US11411587B2 (en) 2022-08-09

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