ATE488908T1 - Verfahren und vorrichtung zur gleichzeitigen korrektur von automatischer verstärkung, phase und dc-offset bei kommunikationsempfängern - Google Patents

Verfahren und vorrichtung zur gleichzeitigen korrektur von automatischer verstärkung, phase und dc-offset bei kommunikationsempfängern

Info

Publication number
ATE488908T1
ATE488908T1 AT07113614T AT07113614T ATE488908T1 AT E488908 T1 ATE488908 T1 AT E488908T1 AT 07113614 T AT07113614 T AT 07113614T AT 07113614 T AT07113614 T AT 07113614T AT E488908 T1 ATE488908 T1 AT E488908T1
Authority
AT
Austria
Prior art keywords
phase
automatic gain
offset
adc
imbalances
Prior art date
Application number
AT07113614T
Other languages
English (en)
Inventor
Augustin Lebron
Konstantin A Kouznetsov
Mehdi Tavassoli Kilani
Original Assignee
Maxim Integrated Products
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 Maxim Integrated Products filed Critical Maxim Integrated Products
Application granted granted Critical
Publication of ATE488908T1 publication Critical patent/ATE488908T1/de

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
    • H04L27/3809—Amplitude regulation arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/008—Compensating DC offsets
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009—Compensating quadrature phase or amplitude imbalances
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of DC offset
    • H04L25/063—Setting decision thresholds using feedback techniques only
    • 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
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Analogue/Digital Conversion (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT07113614T 2006-11-28 2007-08-01 Verfahren und vorrichtung zur gleichzeitigen korrektur von automatischer verstärkung, phase und dc-offset bei kommunikationsempfängern ATE488908T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/605,617 US7769116B2 (en) 2006-11-28 2006-11-28 Methods and apparatus for simultaneous automatic gain, phase and DC offset correction in communication receivers

Publications (1)

Publication Number Publication Date
ATE488908T1 true ATE488908T1 (de) 2010-12-15

Family

ID=39218355

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07113614T ATE488908T1 (de) 2006-11-28 2007-08-01 Verfahren und vorrichtung zur gleichzeitigen korrektur von automatischer verstärkung, phase und dc-offset bei kommunikationsempfängern

Country Status (4)

Country Link
US (1) US7769116B2 (de)
EP (1) EP1928086B1 (de)
AT (1) ATE488908T1 (de)
DE (1) DE602007010571D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8792590B2 (en) * 2009-02-25 2014-07-29 Harris Corporation Communications device with in-phase/quadrature (I/Q) DC offset, gain and phase imbalance compensation and related method
JP4809450B2 (ja) * 2009-02-26 2011-11-09 パナソニック株式会社 デルタシグマａｄ変調器
CN105610760B (zh) * 2016-01-29 2018-11-16 深圳市极致汇仪科技有限公司 无线综测仪对单载波qpsk信号iq不平衡的检测方法
US10594281B1 (en) 2019-03-04 2020-03-17 Ciena Corporation Receiver automatic gain control systems and methods for asymmetrical or unbalanced constellations

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540974A (en) * 1981-10-30 1985-09-10 Rca Corporation Adaptive analog-to-digital converter
JP2574441B2 (ja) * 1987-03-20 1997-01-22 富士通株式会社 ディジタル復調装置
US5761251A (en) * 1995-11-08 1998-06-02 Philips Electronics North America Corporation Dual automatic gain control and DC offset correction circuit for QAM demodulation
US6757340B1 (en) 1999-02-22 2004-06-29 Telefonaktiebolaget L M Ericsson (Publ) Radio receiver and method for preloading an average DC-offset into a channel filter
DE19933266A1 (de) 1999-07-15 2000-11-02 Siemens Ag Vorrichtung zum Empfangen von Funksignalen
US6901121B1 (en) * 2001-02-20 2005-05-31 Comsys Communication & Signal Processing Ltd. Compensation of DC offset impairment in a communications receiver
US6941121B2 (en) * 2001-05-18 2005-09-06 Rf Micro Devices, Inc. Method for calibrating a DC offset cancellation level for direct conversion receivers
US7310387B2 (en) * 2003-12-26 2007-12-18 Electronics And Telecommunications Research Institute Apparatus for compensating DC offsets, gain and phase imbalances between I-channel and Q-channel in quadrature transceiving system
US7620373B2 (en) * 2006-06-23 2009-11-17 Sierra Monolithics, Inc. Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system

Also Published As

Publication number Publication date
DE602007010571D1 (de) 2010-12-30
EP1928086B1 (de) 2010-11-17
EP1928086A2 (de) 2008-06-04
US7769116B2 (en) 2010-08-03
US20080123785A1 (en) 2008-05-29
EP1928086A3 (de) 2009-06-24

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