AU738870B2 - Adaptive predistortion system - Google Patents

Adaptive predistortion system Download PDF

Info

Publication number
AU738870B2
AU738870B2 AU57280/98A AU5728098A AU738870B2 AU 738870 B2 AU738870 B2 AU 738870B2 AU 57280/98 A AU57280/98 A AU 57280/98A AU 5728098 A AU5728098 A AU 5728098A AU 738870 B2 AU738870 B2 AU 738870B2
Authority
AU
Australia
Prior art keywords
constellation
receiver
signal
matrix
transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU57280/98A
Other languages
English (en)
Other versions
AU5728098A (en
Inventor
Sheldon Salinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Dynamics Government Systems Corp
Original Assignee
General Dynamics Government Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Dynamics Government Systems Corp filed Critical General Dynamics Government Systems Corp
Publication of AU5728098A publication Critical patent/AU5728098A/en
Assigned to GENERAL DYNAMICS GOVERNMENT SYSTEMS CORPORATION reassignment GENERAL DYNAMICS GOVERNMENT SYSTEMS CORPORATION Amend patent request/document other than specification (104) Assignors: GTE GOVERNMENT SYSTEMS CORPORATION
Application granted granted Critical
Publication of AU738870B2 publication Critical patent/AU738870B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
AU57280/98A 1996-12-24 1997-12-24 Adaptive predistortion system Ceased AU738870B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US77414396A 1996-12-24 1996-12-24
US08/774143 1996-12-24
PCT/US1997/024194 WO1998028888A1 (en) 1996-12-24 1997-12-24 Adaptive predistortion system

Publications (2)

Publication Number Publication Date
AU5728098A AU5728098A (en) 1998-07-17
AU738870B2 true AU738870B2 (en) 2001-09-27

Family

ID=25100366

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57280/98A Ceased AU738870B2 (en) 1996-12-24 1997-12-24 Adaptive predistortion system

Country Status (8)

Country Link
EP (1) EP0951769A1 (ja)
JP (1) JP3993640B2 (ja)
KR (1) KR20000062279A (ja)
AU (1) AU738870B2 (ja)
CA (1) CA2274522A1 (ja)
IL (1) IL130264A0 (ja)
NO (1) NO993128L (ja)
WO (1) WO1998028888A1 (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100379451B1 (ko) * 1998-12-04 2003-09-19 엘지전자 주식회사 디지털 텔레비전 송신 시스템 및 운용 방법
KR100379452B1 (ko) * 1999-07-31 2003-04-10 엘지전자 주식회사 디지털 티브이 중계기에서의 왜곡 신호 보상 방법
KR100404182B1 (ko) * 1999-08-14 2003-11-03 엘지전자 주식회사 디지털 ｔｖ 중계기의 경보 시스템 및 경보 방법
DE19942768B4 (de) * 1999-08-30 2019-08-14 Ipcom Gmbh & Co. Kg Verfahren zur Übertragung von Signalisierungsinformationen, Sendestation, Mobilstation und Nachrichtenelemente
WO2001017303A1 (de) * 1999-08-30 2001-03-08 Robert Bosch Gmbh Verfahren zur übertragung von signalisiserungsinformationen, sendestation, mobilstation und nachrichtenelemente
KR100379455B1 (ko) * 1999-09-13 2003-04-10 엘지전자 주식회사 디지털 ｔｖ 중계기에서 송신기의 왜곡 보상 장치 및 방법
KR20010060461A (ko) * 1999-12-27 2001-07-07 서평원 디지털 방송 시스템의 자동 경보 방법 및 장치
KR20010059728A (ko) * 1999-12-30 2001-07-06 서평원 브이에스비 자동 선형화 장치
GB0004125D0 (en) * 2000-02-23 2000-04-12 Koninkl Philips Electronics Nv Communications system
KR20010113423A (ko) * 2000-06-16 2001-12-28 최승국 오에프디엠 시스템에서 고출력 증폭기에 의한 비선형 왜곡보상 방법
GB2375016B (en) 2001-04-27 2005-03-16 Tandberg Television Asa Satellite up-link fade compensation
GB2376611A (en) * 2001-06-14 2002-12-18 Tandberg Television Asa Method of adjusting received constellation points
ITMI20011631A1 (it) * 2001-07-27 2003-01-27 Siemens Inf & Comm Networks Procedimento per la linearizzazione dello stadio di potenza di un trasmettitore di segnali relativo sistema e ricevitore
US7362821B1 (en) 2002-05-22 2008-04-22 Marvel International Ltd. Method and apparatus for amplifier linearization using adaptive predistortion
US7085330B1 (en) 2002-02-15 2006-08-01 Marvell International Ltd. Method and apparatus for amplifier linearization using adaptive predistortion
EP1402700B1 (en) * 2002-03-26 2010-07-21 Her Majesty in Right of Canada as Represented by the Minister of Industry Adaptive predistorter based on the probability distribution function of the output amplitude
DE50304960D1 (de) * 2003-07-17 2006-10-19 Benq Corp Verfahren und Schaltungsanordnung zur Linearisierung eines Leistungsverstärkers in Mobilfunktelefonen
JP4417174B2 (ja) 2004-05-19 2010-02-17 株式会社日立国際電気 プリディストータ
EP2117115B1 (en) 2008-05-06 2011-11-30 Nokia Siemens Networks S.p.A. Improvement to remote control methods of transmission signals adaptive predistortion
US8498591B1 (en) 2009-08-21 2013-07-30 Marvell International Ltd. Digital Predistortion for nonlinear RF power amplifiers
US8699620B1 (en) 2010-04-16 2014-04-15 Marvell International Ltd. Digital Predistortion for nonlinear RF power amplifiers
GB201302359D0 (en) 2013-02-11 2013-03-27 Newtec Cy Predistortion circuit and method for predistorting a signal
US9160586B1 (en) 2013-07-24 2015-10-13 Marvell International Ltd. Method and apparatus for estimating and compensating for in-phase and quadrature (IQ) mismatch in a receiver of a wireless communication device
JP6965376B2 (ja) 2017-07-03 2021-11-10 華為技術有限公司Huawei Technologies Co., Ltd. 位相雑音に対して最適化された直交振幅変調についての方法および装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107520A (en) * 1989-01-24 1992-04-21 U.S. Philips Corporation Adaptive predistortion circuit for a digital transmission system
US5148448A (en) * 1989-03-14 1992-09-15 U.S. Philips Corporation Adaptive predistortion circuit with memory
US5339054A (en) * 1992-07-01 1994-08-16 Nec Corporation Modulated signal transmission system compensated for nonlinear and linear distortion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291277A (en) * 1979-05-16 1981-09-22 Harris Corporation Adaptive predistortion technique for linearizing a power amplifier for digital data systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107520A (en) * 1989-01-24 1992-04-21 U.S. Philips Corporation Adaptive predistortion circuit for a digital transmission system
US5148448A (en) * 1989-03-14 1992-09-15 U.S. Philips Corporation Adaptive predistortion circuit with memory
US5339054A (en) * 1992-07-01 1994-08-16 Nec Corporation Modulated signal transmission system compensated for nonlinear and linear distortion

Also Published As

Publication number Publication date
NO993128D0 (no) 1999-06-23
IL130264A0 (en) 2000-06-01
NO993128L (no) 1999-08-20
JP3993640B2 (ja) 2007-10-17
WO1998028888A1 (en) 1998-07-02
JP2001507196A (ja) 2001-05-29
KR20000062279A (ko) 2000-10-25
AU5728098A (en) 1998-07-17
CA2274522A1 (en) 1998-07-02
EP0951769A1 (en) 1999-10-27

Similar Documents

Publication Publication Date Title
AU738870B2 (en) Adaptive predistortion system
US6252912B1 (en) Adaptive predistortion system
US20160254933A1 (en) Design and Optimization of Partial Response Pulse Shape Filter
CN1316757C (zh) 多输入多输出(mimo)通信系统中用信道状态信息处理数据的方法和装置
US9137057B2 (en) Constellation map optimization for highly spectrally efficient communications
US6785342B1 (en) Nonlinear pre-distortion modulator and long loop control
US8867601B2 (en) System and method for iterative nonlinear compensation for intermodulation distortion in multicarrier communication systems
WO2018042838A1 (ja) 光伝送歪補償装置、光伝送歪補償方法及び通信装置
US6674808B1 (en) Post-amplifier filter rejection equalization
US7016657B2 (en) Apparatus, and associated method, for communication system utilizing space-generated multilevel coding
US5694423A (en) Method and apparatus for detecting and correcting misconvergence of a blind equalizer
EP2954612B1 (en) Signal predistortion by addition of a correction term depending on a predefined constellation symbol, a transmission model and a target constellation symbol
US20010016014A1 (en) Communications system
JPH03255729A (ja) 復調システム
AU781463B2 (en) Adaptive array apparatus for correcting phase for forming directional pattern and correction method
US7352832B1 (en) Method and implementation for adaptive symbol decision mapping
Abdulkader et al. Natural gradient algorithm for neural networks applied to non‐linear high power amplifiers
WO1993000761A1 (en) Apparatus for and method of adjusting signal points, equalizer gains and the like
EP1180884B1 (en) QAM receiver with gain control, dc-offset correction, and passband equalisation
US7324611B2 (en) Symbol decision adjustment in demodulator
EP1280272B1 (en) Method for the linearization of the power stage of a signal transmitter and correponding system
JPH0983417A (ja) 無線機
JP6355221B2 (ja) 無線通信システム及び受信装置
JP3522568B2 (ja) Ｏｆｄｍ用歪補償回路およびピーク復元回路
KR960012496B1 (ko) 등화 알고리즘을 선택적으로 사용할 수 있는 등화기

Legal Events

Date Code Title Description
TC Change of applicant's name (sec. 104)

Owner name: GENERAL DYNAMICS GOVERNMENT SYSTEMS CORPORATION

Free format text: FORMER NAME: GTE GOVERNMENT SYSTEMS CORPORATION

FGA Letters patent sealed or granted (standard patent)