JP5783070B2 - 信号処理システムおよび信号処理方法 - Google Patents

信号処理システムおよび信号処理方法 Download PDF

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Publication number
JP5783070B2
JP5783070B2 JP2012019263A JP2012019263A JP5783070B2 JP 5783070 B2 JP5783070 B2 JP 5783070B2 JP 2012019263 A JP2012019263 A JP 2012019263A JP 2012019263 A JP2012019263 A JP 2012019263A JP 5783070 B2 JP5783070 B2 JP 5783070B2
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Japan
Prior art keywords
signal
clipping
band
papr
noise
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JP2012019263A
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English (en)
Japanese (ja)
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JP2013157955A (ja
JP2013157955A5 (enExample
Inventor
エヌ ロズキン アレクサンダー
エヌ ロズキン アレクサンダー
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Fujitsu Ltd
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Fujitsu Ltd
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Publication date
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Priority to JP2012019263A priority Critical patent/JP5783070B2/ja
Priority to US13/721,695 priority patent/US9077409B2/en
Publication of JP2013157955A publication Critical patent/JP2013157955A/ja
Publication of JP2013157955A5 publication Critical patent/JP2013157955A5/ja
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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Classifications

    • 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
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • 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
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms
    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2623—Reduction thereof by clipping
    • H04L27/2624—Reduction thereof by clipping by soft clipping
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3224—Predistortion being done for compensating memory effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Amplifiers (AREA)
JP2012019263A 2012-01-31 2012-01-31 信号処理システムおよび信号処理方法 Expired - Fee Related JP5783070B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012019263A JP5783070B2 (ja) 2012-01-31 2012-01-31 信号処理システムおよび信号処理方法
US13/721,695 US9077409B2 (en) 2012-01-31 2012-12-20 Signal processing system and signal processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012019263A JP5783070B2 (ja) 2012-01-31 2012-01-31 信号処理システムおよび信号処理方法

Publications (3)

Publication Number Publication Date
JP2013157955A JP2013157955A (ja) 2013-08-15
JP2013157955A5 JP2013157955A5 (enExample) 2015-07-23
JP5783070B2 true JP5783070B2 (ja) 2015-09-24

Family

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Family Applications (1)

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JP2012019263A Expired - Fee Related JP5783070B2 (ja) 2012-01-31 2012-01-31 信号処理システムおよび信号処理方法

Country Status (2)

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US (1) US9077409B2 (enExample)
JP (1) JP5783070B2 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8804873B1 (en) * 2013-02-13 2014-08-12 Crestcom, Inc. Communication system and method with PAPR; and backoff configured for equilibrium
US9154168B2 (en) 2013-05-14 2015-10-06 Intel IP Corporation Signal peak-to-average power ratio (PAR) reduction
US9628305B2 (en) * 2014-02-12 2017-04-18 Intel IP Corporation Systems and methods to compensate for memory effects using enhanced memory polynomials
CN105227507B (zh) * 2014-06-13 2019-08-02 中兴通讯股份有限公司 非线性系统失真校正装置及方法
US9806929B2 (en) * 2014-12-12 2017-10-31 Intel IP Corporation Communication device with power amplifier crest factor reduction
JP6526448B2 (ja) 2015-03-05 2019-06-05 富士通株式会社 ピーク抑圧装置およびピーク抑圧方法
US9484962B1 (en) * 2015-06-05 2016-11-01 Infineon Technologies Ag Device and method for adaptive digital pre-distortion
CN105072067B (zh) * 2015-08-27 2018-02-23 西安电子科技大学 一种低信噪比下突发信号的检测方法
US10367671B2 (en) * 2017-11-28 2019-07-30 Avago Technologies International Time domain transmitter signal shaping
WO2019205171A1 (zh) 2018-04-28 2019-10-31 华为技术有限公司 一种射频接收机、射频发射机及通信设备
CN110636025B (zh) * 2019-10-25 2022-02-01 海鹰企业集团有限责任公司 一种降低ofdm声纳的papr方法
US11342950B2 (en) 2020-05-27 2022-05-24 Microsoft Technology Licensing, Llc Out-of-band radio frequency emission filtering
US20240048420A1 (en) * 2022-08-04 2024-02-08 Qualcomm Incorporated Dynamic control of power amplifier back off for amplify and forward repeaters
CN116346562B (zh) * 2023-02-24 2025-06-24 西安电子科技大学 基于ofdm信号限幅噪声的粒子群优化峰均比抑制方法
US12451915B2 (en) * 2023-05-26 2025-10-21 Qualcomm Incorporated Nonlinear power amplifier operating mode indication

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3139395B2 (ja) * 1996-11-19 2001-02-26 松下電器産業株式会社 送信装置
GB0110106D0 (en) * 2001-04-25 2001-06-20 Filtronic Plc Electrical signal preconditioning
JP2003032219A (ja) * 2001-07-17 2003-01-31 Nippon Hoso Kyokai <Nhk> Ｏｆｄｍ高能率増幅装置
US7366252B2 (en) * 2004-01-21 2008-04-29 Powerwave Technologies, Inc. Wideband enhanced digital injection predistortion system and method
JP4755069B2 (ja) * 2006-11-07 2011-08-24 三菱電機株式会社 送信装置
US8185065B2 (en) * 2009-10-15 2012-05-22 Crestcom, Inc. Transmitting unit that reduces PAPR using out-of-band distortion and method therefor

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Publication number Publication date
JP2013157955A (ja) 2013-08-15
US9077409B2 (en) 2015-07-07
US20130195221A1 (en) 2013-08-01

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