AU2001259538A1 - Digital communication receiver with digital, if, i-q balancer - Google Patents

Digital communication receiver with digital, if, i-q balancer

Info

Publication number
AU2001259538A1
AU2001259538A1 AU2001259538A AU5953801A AU2001259538A1 AU 2001259538 A1 AU2001259538 A1 AU 2001259538A1 AU 2001259538 A AU2001259538 A AU 2001259538A AU 5953801 A AU5953801 A AU 5953801A AU 2001259538 A1 AU2001259538 A1 AU 2001259538A1
Authority
AU
Australia
Prior art keywords
digital
balancer
communication receiver
digital communication
receiver
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.)
Abandoned
Application number
AU2001259538A
Inventor
Bruce A Cochran
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.)
Conexant Systems Worldwide Inc
Original Assignee
Sicom Inc
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 Sicom Inc filed Critical Sicom Inc
Publication of AU2001259538A1 publication Critical patent/AU2001259538A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3863—Compensation for quadrature error in the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0036—Correction of carrier offset using a recovered symbol clock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0038—Correction of carrier offset using an equaliser
AU2001259538A 2000-05-22 2001-05-04 Digital communication receiver with digital, if, i-q balancer Abandoned AU2001259538A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/576,220 US6442217B1 (en) 2000-05-22 2000-05-22 Digital communication receiver with digital, IF, I-Q balancer
US09576220 2000-05-22
PCT/US2001/014579 WO2001091395A1 (en) 2000-05-22 2001-05-04 Digital communication receiver with digital, if, i-q balancer

Publications (1)

Publication Number Publication Date
AU2001259538A1 true AU2001259538A1 (en) 2001-12-03

Family

ID=24303448

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001259538A Abandoned AU2001259538A1 (en) 2000-05-22 2001-05-04 Digital communication receiver with digital, if, i-q balancer

Country Status (3)

Country Link
US (1) US6442217B1 (en)
AU (1) AU2001259538A1 (en)
WO (1) WO2001091395A1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7486722B2 (en) 2001-04-18 2009-02-03 Bae Systems Information And Electronic Systems Integration Inc. Bandwidth efficient cable network modem
US20030072393A1 (en) * 2001-08-02 2003-04-17 Jian Gu Quadrature transceiver substantially free of adverse circuitry mismatch effects
US7076008B2 (en) * 2001-11-02 2006-07-11 Texas Instruments Incorporated Method and apparatus for estimating and correcting gain and phase imbalance in a code division multiple access system
US7653164B2 (en) * 2001-12-31 2010-01-26 Intel Corporation Adaptive IQ imbalance correction for multicarrier wireless communication systems
DE60211753T2 (en) * 2002-01-29 2006-12-28 Mitsubishi Denki K.K. Transmission of an Additional Dedicated Physical Control CHannel (ADPCCH) in a W-CDMA system
US7158586B2 (en) 2002-05-03 2007-01-02 Atheros Communications, Inc. Systems and methods to provide wideband magnitude and phase imbalance calibration and compensation in quadrature receivers
US7660344B2 (en) * 2002-06-28 2010-02-09 Bwa Technology, Inc. AGC fine-tuning by the adaptive time domain equalizer
US7248625B2 (en) * 2002-09-05 2007-07-24 Silicon Storage Technology, Inc. Compensation of I-Q imbalance in digital transceivers
US20050180534A1 (en) * 2002-09-09 2005-08-18 Infineon Technologies Ag Iterative estimation and equalization of asymmetries between inphase and quadrature branches in multicarrier transmission systems
DE10241679A1 (en) * 2002-09-09 2004-03-18 Infineon Technologies Ag IQ-asymmetries iterative estimation and correction method e.g. for multi-carrier transmission systems, requires using new channel coefficients together with reference symbols
US7133657B2 (en) * 2002-09-26 2006-11-07 Agere Systems Inc. Channel calibrator for use with a quadrature mixing receiver and a method of operation thereof
US7656846B2 (en) * 2002-11-18 2010-02-02 Ge Fanuc Automation North America, Inc. PLC based wireless communications
CN1723669A (en) * 2002-12-09 2006-01-18 皇家飞利浦电子股份有限公司 Phase/gain imbalance estimation or compensation
US6950480B2 (en) * 2003-01-24 2005-09-27 Texas Instruments Incorporated Receiver having automatic burst mode I/Q gain and phase balance
GB2406984B (en) * 2003-06-18 2005-12-21 Motorola Inc Method and arrangement for I-Q balancing and radio receiver incorporating same
US7131271B2 (en) * 2003-08-28 2006-11-07 International Engine Intellectual Property Company, Llc Clean, low-pressure EGR in a turbocharged engine by back-pressure control
US8677434B2 (en) * 2003-12-03 2014-03-18 Broadcom Corporation Method and system for direct digital up-conversion in a cable modem
US7342976B2 (en) * 2004-01-27 2008-03-11 Crestcom, Inc. Predistortion circuit and method for compensating A/D and other distortion in a digital RF communications transmitter
US20050163208A1 (en) * 2004-01-27 2005-07-28 Crestcom, Inc. Equalized signal path with predictive subtraction signal and method therefor
US7099399B2 (en) * 2004-01-27 2006-08-29 Crestcom, Inc. Distortion-managed digital RF communications transmitter and method therefor
US7430248B2 (en) * 2004-01-27 2008-09-30 Crestcom, Inc. Predistortion circuit and method for compensating nonlinear distortion in a digital RF communications transmitter
US7469491B2 (en) * 2004-01-27 2008-12-30 Crestcom, Inc. Transmitter predistortion circuit and method therefor
US20050163249A1 (en) * 2004-01-27 2005-07-28 Crestcom, Inc. Predistortion circuit and method for compensating linear distortion in a digital RF communications transmitter
US20050163205A1 (en) * 2004-01-27 2005-07-28 Crestcom, Inc. Equalized signal path with predictive subtraction signal and method therefor
US7369606B1 (en) * 2004-02-19 2008-05-06 L-3 Communications Corporation Phase error detector using I/Q interference cancellation
US8144806B2 (en) 2004-09-27 2012-03-27 Marvell International Ltd. Device, system and method of I/Q mismatch correction
US20060109893A1 (en) * 2004-11-24 2006-05-25 Hsin-Hung Chen Inphase/quadrature phase imbalance compensation
US8208530B2 (en) * 2005-03-14 2012-06-26 Broadcom Corporation Apparatus and method for correcting IQ imbalance
TWI323590B (en) * 2005-04-14 2010-04-11 Realtek Semiconductor Corp Method and circuit for equalizing and compensating iq imbalance simultaneously
US7496340B1 (en) * 2005-06-02 2009-02-24 Rf Micro Devices, Inc. I/Q mismatch calibration of direct conversion receivers using radio frequency noise
US20070082617A1 (en) * 2005-10-11 2007-04-12 Crestcom, Inc. Transceiver with isolation-filter compensation and method therefor
GB2431322B (en) * 2005-10-17 2008-03-26 Univ Westminster Communications system
US7382297B1 (en) * 2005-12-08 2008-06-03 Marvell International Ltd. Transmitter I/Q mismatch calibration for low IF design systems
GB2433684A (en) * 2005-12-23 2007-06-27 British Broadcasting Corp Detecting and correcting I/Q crosstalk in complex quadrature-modulated signals
US7724840B2 (en) * 2006-12-19 2010-05-25 Crestcom, Inc. RF transmitter with predistortion and method therefor
US7856065B2 (en) * 2007-05-02 2010-12-21 Telefonkaktiebolaget Lm Ericsson (publ) Method and apparatus for correcting IQ imbalance in an OFDM receiver
US7822399B2 (en) 2007-05-11 2010-10-26 Telefonaktiebolaget Lm Ericsson (Publ) Image compensation for wireless receiver
US20080285640A1 (en) * 2007-05-15 2008-11-20 Crestcom, Inc. RF Transmitter With Nonlinear Predistortion and Method Therefor
US7894555B2 (en) * 2007-08-02 2011-02-22 Telefonaktiebolaget Lm Ericsson (Publ) IQ imbalance image suppression
US7986930B2 (en) * 2007-08-02 2011-07-26 Telefonaktiebolaget Lm Ericsson (Publ) IQ imbalance image suppression in presence of unknown phase shift
US8135094B2 (en) * 2008-08-27 2012-03-13 Freescale Semiconductor, Inc. Receiver I/Q group delay mismatch correction
JP5273151B2 (en) * 2008-09-30 2013-08-28 富士通株式会社 Radio transmission apparatus and modulation method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004226A (en) 1975-07-23 1977-01-18 Codex Corporation QAM receiver having automatic adaptive equalizer
US4626803A (en) 1985-12-30 1986-12-02 General Electric Company Apparatus for providing a carrier signal with two digital data streams I-Q modulated thereon
DE3765947D1 (en) * 1986-01-18 1990-12-13 Hewlett Packard Ltd NON-INFLUENCY ANALYZER FOR DETECTING CHANNEL FAULTS.
CA2073944C (en) * 1991-07-26 2000-09-19 Woo H. Paik Carrier phase recovery for an adaptive equalizer
US5285480A (en) 1991-09-03 1994-02-08 General Electric Company Adaptive MLSE-VA receiver for digital cellular radio
US5301167A (en) * 1992-08-05 1994-04-05 Northeastern University Apparatus for improved underwater acoustic telemetry utilizing phase coherent communications
US5386239A (en) * 1993-05-03 1995-01-31 Thomson Consumer Electronics, Inc. Multiple QAM digital television signal decoder
JPH0775099A (en) * 1993-05-07 1995-03-17 Philips Electron Nv Transmission method, transmitter and receiver for transmitting multiplex orthogonal-amplitude-modulation type television
US5673293A (en) * 1994-09-08 1997-09-30 Hitachi America, Ltd. Method and apparatus for demodulating QAM and VSB signals
US5751766A (en) * 1995-04-27 1998-05-12 Applied Signal Technology, Inc. Non-invasive digital communications test system
US5671257A (en) 1995-06-06 1997-09-23 Sicom, Inc. Symbol timing recovery based on complex sample magnitude
US5818832A (en) 1995-10-10 1998-10-06 Sicom, Inc. Rapid synchronization for communication systems
US5721756A (en) 1996-03-26 1998-02-24 Sicom, Inc. Digital receiver with tunable analog parameters and method therefor
US6041088A (en) 1996-10-23 2000-03-21 Sicom, Inc. Rapid synchronization for communication systems
US5764102A (en) 1997-02-13 1998-06-09 Sicom, Inc. Multi-stage symbol synchronization
DE69920737T2 (en) * 1998-11-03 2005-10-13 Broadcom Corp., Irvine QAM / VSB TWO-DAY RECEIVER
US6151368A (en) * 1999-03-22 2000-11-21 Sicom, Inc. Phase-noise compensated digital communication receiver and method therefor
US6160443A (en) * 1999-09-08 2000-12-12 Atmel Corporation Dual automatic gain control in a QAM demodulator

Also Published As

Publication number Publication date
WO2001091395A1 (en) 2001-11-29
US6442217B1 (en) 2002-08-27

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