DE69413510D1 - Quadraturmodulator mit adaptivem unterdrückten Restträger - Google Patents

Quadraturmodulator mit adaptivem unterdrückten Restträger

Info

Publication number
DE69413510D1
DE69413510D1 DE69413510T DE69413510T DE69413510D1 DE 69413510 D1 DE69413510 D1 DE 69413510D1 DE 69413510 T DE69413510 T DE 69413510T DE 69413510 T DE69413510 T DE 69413510T DE 69413510 D1 DE69413510 D1 DE 69413510D1
Authority
DE
Germany
Prior art keywords
adaptive
quadrature modulator
residual carrier
suppressed residual
suppressed
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.)
Expired - Lifetime
Application number
DE69413510T
Other languages
English (en)
Other versions
DE69413510T2 (de
Inventor
James Russell Blodgett
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.)
AT&T Corp
Original Assignee
AT&T 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 AT&T Corp filed Critical AT&T Corp
Publication of DE69413510D1 publication Critical patent/DE69413510D1/de
Application granted granted Critical
Publication of DE69413510T2 publication Critical patent/DE69413510T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • H03C3/406—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated using a feedback loop containing mixers or demodulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
    • H03D7/168—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages using a feedback loop containing mixers or demodulators
    • 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)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
DE69413510T 1993-12-29 1994-12-09 Quadraturmodulator mit adaptivem unterdrückten Restträger Expired - Lifetime DE69413510T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/174,923 US5396196A (en) 1993-12-29 1993-12-29 Quadrature modular with adaptive suppression of carrier leakage

Publications (2)

Publication Number Publication Date
DE69413510D1 true DE69413510D1 (de) 1998-10-29
DE69413510T2 DE69413510T2 (de) 1999-04-15

Family

ID=22638082

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69413510T Expired - Lifetime DE69413510T2 (de) 1993-12-29 1994-12-09 Quadraturmodulator mit adaptivem unterdrückten Restträger

Country Status (6)

Country Link
US (1) US5396196A (de)
EP (1) EP0661801B1 (de)
JP (1) JP3022231B2 (de)
CN (1) CN1116375A (de)
DE (1) DE69413510T2 (de)
RU (1) RU94044345A (de)

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JP3565281B2 (ja) * 1993-10-08 2004-09-15 ソニー株式会社 受信機
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US5596606A (en) * 1994-04-05 1997-01-21 Scientific-Atlanta, Inc. Synchronous detector and methods for synchronous detection
JPH0832464A (ja) * 1994-07-15 1996-02-02 Uniden Corp 送信機におけるキャリアリーク補正方法
JPH0832462A (ja) * 1994-07-15 1996-02-02 Uniden Corp カーテジアンループのｄｃオフセット回路
US5608761A (en) * 1994-12-09 1997-03-04 Motorola, Inc. Method, device, and radio for compensating for modulator frequency drift while allowing for data transmission
GB2301247A (en) * 1995-05-22 1996-11-27 Univ Bristol A cartesian loop transmitter amplifier
GB9521769D0 (en) * 1995-10-24 1996-01-03 Philips Electronics Nv Transmitter
JP3175580B2 (ja) * 1996-03-14 2001-06-11 日本電気株式会社 直交位相変調器の調整装置
JPH10247952A (ja) * 1997-03-05 1998-09-14 Fujitsu Ltd 位相変調器
GB2329560A (en) * 1997-07-28 1999-03-24 Roke Manor Research Bias control for radio transmitter
GB2329085B (en) * 1997-09-09 2002-06-12 Gec Marconi Comm Ltd RF transmitter
US6618096B1 (en) 1997-09-29 2003-09-09 Scientific-Atlanta, Inc. System and method for adaptively balancing quadrature modulators for vestigial-sideband generation
FI104450B (fi) * 1997-10-09 2000-01-31 Nokia Networks Oy Menetelmä ja kytkentä viiveen kompensoimiseksi tehovahvistimen linearisointisilmukassa
US6148047A (en) * 1998-05-06 2000-11-14 Philips Electronics North America Corporation DC offset compensation for zero if quadrature demodulator
US6842495B1 (en) * 1998-11-03 2005-01-11 Broadcom Corporation Dual mode QAM/VSB receiver
US6169463B1 (en) 1999-03-24 2001-01-02 Philips Electronic North America Corp. Quadrature modulator with set-and-forget carrier leakage compensation
JP3540204B2 (ja) * 1999-07-02 2004-07-07 Ｎｅｃエレクトロニクス株式会社 直交変調器及びそれを備える移動体通信機、通信システム
JP3322307B2 (ja) * 1999-08-04 2002-09-09 日本電気株式会社 送信機
GB2363546B (en) 2000-06-14 2002-07-03 Motorola Israel Ltd Circuit and method for reducing local oscillator frequency transmission in a radio transceiver
JP3712985B2 (ja) * 2002-02-22 2005-11-02 アンリツ株式会社 直交変調器のキャリアリーク調整点検出方法、そのキャリアリーク調整方法、及び直交変調装置
US7415077B2 (en) * 2002-07-29 2008-08-19 Infineon Technologies Ag Transmission arrangement, particularly for mobile radio
EP1537744A1 (de) * 2002-09-06 2005-06-08 Koninklijke Philips Electronics N.V. Parametercodierung f r ein verbessertes atsc-dtv-system
DE602004025561D1 (de) * 2003-04-24 2010-04-01 Nxp Bv Quadraturmodulator und kalibrierungsverfahren dafür
US7003263B2 (en) * 2003-05-12 2006-02-21 Lucent Technologies Inc. Telecommunications receiver and a transmitter
JP4341418B2 (ja) * 2004-01-30 2009-10-07 日本電気株式会社 直交変調器の調整装置及び調整方法並びに通信装置とプログラム
CN100384269C (zh) * 2004-02-25 2008-04-23 华为技术有限公司 一种补偿基站发信机非理想特性的系统及方法
US7369624B2 (en) * 2004-06-01 2008-05-06 Orbital Sciences Corp. Carrier suppression type modulator with encoded modulating signals
US8032095B1 (en) * 2005-03-03 2011-10-04 Marvell International Ltd. Method and apparatus for detecting carrier leakage in a wireless or similar system
US7657236B2 (en) * 2005-08-16 2010-02-02 Broadcom Corporation Transmitter having reduced local oscillator (LO) leakage by determining direct LO coupling and baseband DC offset
US7440732B2 (en) * 2005-08-26 2008-10-21 Broadcom Corporation Apparatus and method of local oscillator leakage cancellation
FI20055632A0 (fi) * 2005-11-30 2005-11-30 Nokia Corp Paikallisoskillaattorin vuodon vaimentaminen radiolähettimessä
EP1841058B1 (de) * 2006-03-31 2011-07-06 Nokia Siemens Networks S.p.A. Sender mit unterdrücktem Träger,und Verfahren dazu
JP4805107B2 (ja) * 2006-11-27 2011-11-02 日本無線株式会社 直交変調器
KR100961260B1 (ko) * 2007-12-04 2010-06-03 한국전자통신연구원 직교 변조 시스템에서 반송파 누설 보상 장치 및 그 방법
US8238846B2 (en) * 2009-12-18 2012-08-07 Motorola Solutions, Inc. Multi carrier leakage tuning by error power detection
CN102377450B (zh) * 2010-08-20 2014-03-12 中兴通讯股份有限公司 一种抑制载波泄漏的系统和方法
JP5599352B2 (ja) * 2011-03-30 2014-10-01 パナソニック株式会社 受信装置
US8964892B2 (en) 2011-08-23 2015-02-24 Motorola Solutions, Inc. Apparatus and method for operating a transmitter
US8787864B2 (en) * 2012-11-30 2014-07-22 Qualcomm Incorporated Receiver IIP2 analog calibration
US9136989B2 (en) 2013-10-10 2015-09-15 Motorola Solutions, Inc. Method and apparatus for reducing carrier leakage
CN106130674B (zh) * 2016-06-12 2018-08-28 广州杰赛科技股份有限公司 一种直放站带内载波泄漏抑制测试方法与装置
CN106160783A (zh) * 2016-08-23 2016-11-23 池州睿成微电子有限公司 一种用于载波泄漏消除系统的正交信号发生器
CN107589325B (zh) * 2017-09-12 2020-07-03 中国电子科技集团公司第四十一研究所 一种多载波信号的产生装置和产生方法
KR101977783B1 (ko) * 2017-10-17 2019-05-13 주식회사 케이엠더블유 전력 증폭기 성능 보정 방법 및 그를 위한 장치
CN112671681B (zh) * 2020-02-03 2022-03-01 腾讯科技（深圳）有限公司 边带抑制方法、装置、计算机设备和存储介质

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US4243955A (en) * 1978-06-28 1981-01-06 Motorola, Inc. Regulated suppressed carrier modulation system
US4843351A (en) * 1987-08-28 1989-06-27 Hewlett-Packard Company Vector modulation signal generator
FI81704C (fi) * 1989-04-11 1990-11-12 Telenokia Oy Kvadraturmodulator.
US5033110A (en) * 1990-05-18 1991-07-16 Northern Telecom Limited Frequency converter for a radio communications system
US5119399A (en) * 1990-09-28 1992-06-02 Hewlett-Packard Co. Quadrature measurement and calibration of a vector modulator
JPH0514429A (ja) * 1991-07-08 1993-01-22 Oki Electric Ind Co Ltd 直交変調器キヤリア・リーク調整回路
JPH05102881A (ja) * 1991-10-08 1993-04-23 Mitsubishi Electric Corp 音声信号処理回路

Also Published As

Publication number Publication date
EP0661801A1 (de) 1995-07-05
DE69413510T2 (de) 1999-04-15
JP3022231B2 (ja) 2000-03-15
US5396196A (en) 1995-03-07
EP0661801B1 (de) 1998-09-23
CN1116375A (zh) 1996-02-07
JPH0870327A (ja) 1996-03-12
RU94044345A (ru) 1996-10-20

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