WO2000070751A8 - Broadcast transmission system with correction for distortion - Google Patents

Broadcast transmission system with correction for distortion

Info

Publication number
WO2000070751A8
WO2000070751A8 PCT/US2000/013149 US0013149W WO0070751A8 WO 2000070751 A8 WO2000070751 A8 WO 2000070751A8 US 0013149 W US0013149 W US 0013149W WO 0070751 A8 WO0070751 A8 WO 0070751A8
Authority
WO
WIPO (PCT)
Prior art keywords
distortion
linear
component
components
compensates
Prior art date
Application number
PCT/US2000/013149
Other languages
French (fr)
Other versions
WO2000070751A1 (en
Inventor
Edwin Ray Twitchell
Wayne Duello
Original Assignee
Harris 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 Harris Corp filed Critical Harris Corp
Priority to JP2000619093A priority Critical patent/JP2003500876A/en
Priority to AU50111/00A priority patent/AU5011100A/en
Priority to KR1020017014549A priority patent/KR20020000175A/en
Priority to CA002374079A priority patent/CA2374079A1/en
Priority to EP00932384A priority patent/EP1181772A1/en
Publication of WO2000070751A1 publication Critical patent/WO2000070751A1/en
Publication of WO2000070751A8 publication Critical patent/WO2000070751A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • 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
    • H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output

Abstract

A transmission system (14) broadcasts a signal, a power amplifier (20) causes non-linear distortion. A pre-amp component, e.g. a band-pass filter (32), causes linear distortion. A high power filter (38) located downstream of the power amplifier (20) and causes linear distortion. A linear equalizer (42) compensates for the distortion caused by the high power filter (38). A non-linear corrector (44) compensates for the distortion caused by the power amplifier (20), and is located downstream of the linear equalizer (42). A linear equalizer (46) compensates for the distortion caused by the pre-amp components (e.g., 32). The compensating components (42-46) are located upstream of the distorting, pre-amp component (e.g., 32). An interpolation component (22) is located between the three compensating components (42-46) and the distortion causing components (20, 32, and 38). Signal sampling points (70-74) are located downstream of each distorting component (20, 32, and 38).
PCT/US2000/013149 1999-05-14 2000-05-12 Broadcast transmission system with correction for distortion WO2000070751A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2000619093A JP2003500876A (en) 1999-05-14 2000-05-12 Broadcast transmission system with distortion correction
AU50111/00A AU5011100A (en) 1999-05-14 2000-05-12 Broadcast transmission system with correction for distortion
KR1020017014549A KR20020000175A (en) 1999-05-14 2000-05-12 Broadcast transmission system with correction for distortion
CA002374079A CA2374079A1 (en) 1999-05-14 2000-05-12 Broadcast transmission system with correction for distortion
EP00932384A EP1181772A1 (en) 1999-05-14 2000-05-12 Broadcast transmission system with correction for distortion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/312,345 1999-05-14
US09/312,345 US6473133B1 (en) 1999-05-14 1999-05-14 Broadcast transmission system with correction for distortion caused by amplifying and signal conditioning components at a different rate

Publications (2)

Publication Number Publication Date
WO2000070751A1 WO2000070751A1 (en) 2000-11-23
WO2000070751A8 true WO2000070751A8 (en) 2001-04-19

Family

ID=23211029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/013149 WO2000070751A1 (en) 1999-05-14 2000-05-12 Broadcast transmission system with correction for distortion

Country Status (9)

Country Link
US (1) US6473133B1 (en)
EP (1) EP1181772A1 (en)
JP (1) JP2003500876A (en)
KR (1) KR20020000175A (en)
CN (1) CN1355956A (en)
AU (1) AU5011100A (en)
CA (1) CA2374079A1 (en)
TW (1) TW472486B (en)
WO (1) WO2000070751A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7058037B1 (en) * 1999-09-13 2006-06-06 Utstarcom, Inc. Radio frequency transmitting device of mobile radio communication base station system in code division multiple access system
SE522878C2 (en) * 2000-06-16 2004-03-16 Ericsson Telefon Ab L M Data communication systems
KR100360273B1 (en) * 2000-12-28 2002-11-09 엘지전자 주식회사 Linear compensation adaptive equalizer apparatus and his controll method for digital television repeater
KR100471592B1 (en) * 2002-07-09 2005-03-10 한국전자통신연구원 Pre-equalizer, VSB transmission system using the pre-equalizer and transmission method thereof
GB2394390B (en) 2002-10-18 2005-07-06 Ipwireless Inc Arrangement and method for RF filter
CN100428627C (en) * 2002-11-14 2008-10-22 株式会社日立国际电气 Distortion compensation circuit, distortion compensation signal generating method, and power amplifier
JP4175503B2 (en) * 2003-04-18 2008-11-05 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 Distortion compensation circuit and transmitter
US20050226345A1 (en) * 2004-03-31 2005-10-13 Interdigital Technology Corporation Apparatus for reducing channel interference between proximate wireless communication units
US20050233712A1 (en) * 2004-04-16 2005-10-20 Thales Broadcast & Multimedia, Inc. Low-frequency signal correction circuit
JP4617265B2 (en) * 2006-02-14 2011-01-19 富士通株式会社 Distortion compensation apparatus and distortion compensation method
US7889109B2 (en) * 2006-12-27 2011-02-15 Sharp Kabushiki Kaisha ΔΣ modulation digital-analog converter, digital signal processing method, and AV device
US8195118B2 (en) 2008-07-15 2012-06-05 Linear Signal, Inc. Apparatus, system, and method for integrated phase shifting and amplitude control of phased array signals
US8872719B2 (en) 2009-11-09 2014-10-28 Linear Signal, Inc. Apparatus, system, and method for integrated modular phased array tile configuration
CN102149179B (en) * 2010-02-09 2013-08-14 华为技术有限公司 Method and device for controlling power
US8204456B2 (en) * 2010-09-15 2012-06-19 Fujitsu Semiconductor Limited Systems and methods for spurious emission cancellation
WO2014034120A1 (en) * 2012-08-31 2014-03-06 日本電気株式会社 Device and method for spectrum degradation compensation
KR102081620B1 (en) * 2015-07-15 2020-02-27 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Transceivers and Methods for Reducing Self-Interference in Transceivers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652965A1 (en) * 1989-10-06 1991-04-12 Philips Electronique Lab PREDISTORSION DEVICE FOR DIGITAL TRANSMISSION SYSTEM.
US5428314A (en) * 1994-05-09 1995-06-27 Tacan Corporation Odd/even order distortion generator and distortion cancellation circuit
US5732333A (en) * 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
US5760646A (en) * 1996-03-29 1998-06-02 Spectrian Feed-forward correction loop with adaptive predistortion injection for linearization of RF power amplifier
US6081158A (en) * 1997-06-30 2000-06-27 Harris Corporation Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system
US6281936B1 (en) * 1999-05-14 2001-08-28 Harris Corporation Broadcast transmission system with sampling and correction arrangement for correcting distortion caused by amplifying and signal conditioning components

Also Published As

Publication number Publication date
EP1181772A1 (en) 2002-02-27
CA2374079A1 (en) 2000-11-23
TW472486B (en) 2002-01-11
US6473133B1 (en) 2002-10-29
JP2003500876A (en) 2003-01-07
WO2000070751A1 (en) 2000-11-23
AU5011100A (en) 2000-12-05
CN1355956A (en) 2002-06-26
KR20020000175A (en) 2002-01-04

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