DE69608884D1 - Flanken-, drift-und offsetkompensierung für zero-zf-empfänger - Google Patents

Flanken-, drift-und offsetkompensierung für zero-zf-empfänger

Info

Publication number
DE69608884D1
DE69608884D1 DE69608884T DE69608884T DE69608884D1 DE 69608884 D1 DE69608884 D1 DE 69608884D1 DE 69608884 T DE69608884 T DE 69608884T DE 69608884 T DE69608884 T DE 69608884T DE 69608884 D1 DE69608884 D1 DE 69608884D1
Authority
DE
Germany
Prior art keywords
flank
drift
receivers
zero
offset compensation
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
DE69608884T
Other languages
English (en)
Other versions
DE69608884T2 (de
Inventor
Bjoern Lindquist
W Dent
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.)
Ericsson Inc
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DE69608884D1 publication Critical patent/DE69608884D1/de
Publication of DE69608884T2 publication Critical patent/DE69608884T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03273—Arrangements for operating in conjunction with other apparatus with carrier recovery circuitry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03401—PSK
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03401—PSK
    • H04L2025/03407—Continuous phase

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
DE69608884T 1995-03-09 1996-03-01 Flanken-, drift-und offsetkompensierung für zero-zf-empfänger Expired - Lifetime DE69608884T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/401,127 US5568520A (en) 1995-03-09 1995-03-09 Slope drift and offset compensation in zero-IF receivers
PCT/US1996/002983 WO1996028885A1 (en) 1995-03-09 1996-03-01 Slope, drift and offset compensation in zero-if receivers

Publications (2)

Publication Number Publication Date
DE69608884D1 true DE69608884D1 (de) 2000-07-20
DE69608884T2 DE69608884T2 (de) 2000-11-02

Family

ID=23586418

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69608884T Expired - Lifetime DE69608884T2 (de) 1995-03-09 1996-03-01 Flanken-, drift-und offsetkompensierung für zero-zf-empfänger
DE69634835T Expired - Lifetime DE69634835T2 (de) 1995-03-09 1996-03-01 Flanken-, Drift- und Offsetkompensation für Zero-ZF-Empfänger

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69634835T Expired - Lifetime DE69634835T2 (de) 1995-03-09 1996-03-01 Flanken-, Drift- und Offsetkompensation für Zero-ZF-Empfänger

Country Status (11)

Country Link
US (3) US5568520A (de)
EP (2) EP0952665B1 (de)
JP (1) JP3996593B2 (de)
KR (1) KR100366321B1 (de)
CN (1) CN1075283C (de)
AU (1) AU709812B2 (de)
BR (1) BR9607642A (de)
CA (1) CA2213855C (de)
DE (2) DE69608884T2 (de)
SG (1) SG87773A1 (de)
WO (1) WO1996028885A1 (de)

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US6246867B1 (en) * 1998-11-17 2001-06-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver
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SE9900289D0 (sv) * 1999-01-27 1999-01-27 Ericsson Telefon Ab L M DC estimate method for a homodyne receiver
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US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7184473B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7822154B2 (en) * 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7245671B1 (en) * 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
US8005035B2 (en) * 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7583728B2 (en) * 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7423987B2 (en) * 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7184489B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7173981B1 (en) * 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7039382B2 (en) * 2001-05-15 2006-05-02 Broadcom Corporation DC offset calibration for a radio transceiver mixer
US7231000B2 (en) * 2001-10-22 2007-06-12 Broadcom Corporation System and method for DC offset compensation and bit synchronization
US7038733B2 (en) 2002-01-30 2006-05-02 Ericsson Inc. Television receivers and methods for processing signal sample streams synchronously with line/frame patterns
WO2004004193A2 (en) * 2002-07-01 2004-01-08 The Directv Group, Inc. Improving hierarchical 8psk performance
EP1529347B1 (de) 2002-07-03 2016-08-24 The Directv Group, Inc. Verfahren und vorrichtung zur modulation in schichten
US7474710B2 (en) * 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
ATE491296T1 (de) * 2002-10-25 2010-12-15 Directv Group Inc Verfahren und vorrichtung zum anpassen von trägerleistungsanforderungen gemäss verfügbarkeit in geschichteten modulationssystemen
US7230480B2 (en) * 2002-10-25 2007-06-12 The Directv Group, Inc. Estimating the operating point on a non-linear traveling wave tube amplifier
US7529312B2 (en) * 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
EP1563620B1 (de) * 2002-10-25 2012-12-05 The Directv Group, Inc. Signalprozessor für geschichtete Modulation mit niedrigerer Komplexität
US7206557B2 (en) * 2003-01-08 2007-04-17 Lucent Technologies Inc. Method and apparatus for suppressing local oscillator leakage in a wireless transmitter
US7215722B2 (en) * 2003-06-09 2007-05-08 Ali Corporation Device for WLAN baseband processing with DC offset reduction
US7502429B2 (en) * 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
US7251300B2 (en) * 2003-12-22 2007-07-31 Spreadtrum Communications Corporation Method and apparatus for frequency tracking based on recovered data
DE10361037A1 (de) * 2003-12-23 2005-07-28 Infineon Technologies Ag Verfahren und Vorrichtung zur Demodulation eines phasenmodulierten Signals
US7526265B2 (en) 2005-05-24 2009-04-28 Skyworks Solutions, Inc. Method and system for receiver impairment estimation and correction
JP4516501B2 (ja) * 2005-08-25 2010-08-04 富士通オプティカルコンポーネンツ株式会社 Ｄｑｐｓｋ光受信回路
EP1952531A1 (de) * 2005-11-18 2008-08-06 Koninklijke Philips Electronics N.V. Kalkulation von gleichspannungsoffset
CN101529767B (zh) 2006-10-19 2013-09-18 日本电气株式会社 无线传输系统中的信号生成设备和信号生成方法
GB0803710D0 (en) * 2008-02-28 2008-04-09 Nokia Corp DC compensation
US8351874B2 (en) * 2008-04-08 2013-01-08 Telefonaktiebolaget Lm Ericsson (Publ) System and method for adaptive antenna impedance matching
CN101610090B (zh) * 2008-06-20 2012-10-10 大唐移动通信设备有限公司 一种零中频发射机和校准零中频发射信号的方法
US8855580B2 (en) * 2008-06-27 2014-10-07 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatus for reducing own-transmitter interference in low-IF and zero-IF receivers
US8055234B2 (en) * 2008-06-27 2011-11-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for suppressing strong-signal interference in low-IF receivers
US7995973B2 (en) * 2008-12-19 2011-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Own transmitter interference tolerant transceiver and receiving methods
US8120466B2 (en) * 2008-10-08 2012-02-21 Assa Abloy Ab Decoding scheme for RFID reader
US8090320B2 (en) * 2008-12-19 2012-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Strong signal tolerant OFDM receiver and receiving methods
CN101478317B (zh) * 2008-12-25 2012-02-01 苏州全波通信技术有限公司 直接变频调制中iq幅度的自适应平衡系统
CN103414486B (zh) * 2013-08-19 2015-12-09 电子科技大学 60GHz通信系统的零中频I/Q失配补偿电路
CN109728856B (zh) * 2017-10-27 2021-12-31 富士通株式会社 光发射机iq不平衡的估计装置、补偿装置及电子设备

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Also Published As

Publication number Publication date
US5568520A (en) 1996-10-22
US20020071506A1 (en) 2002-06-13
BR9607642A (pt) 1998-05-26
KR19980702881A (ko) 1998-08-05
KR100366321B1 (ko) 2003-03-15
DE69634835D1 (de) 2005-07-14
EP0813768B1 (de) 2000-06-14
WO1996028885A1 (en) 1996-09-19
US5712637A (en) 1998-01-27
EP0813768A1 (de) 1997-12-29
EP0952665A3 (de) 2002-07-10
AU709812B2 (en) 1999-09-09
DE69608884T2 (de) 2000-11-02
US6473471B2 (en) 2002-10-29
CA2213855A1 (en) 1996-09-19
JP2005137014A (ja) 2005-05-26
AU5419096A (en) 1996-10-02
EP0952665A2 (de) 1999-10-27
JP3996593B2 (ja) 2007-10-24
JPH11502080A (ja) 1999-02-16
CA2213855C (en) 2006-08-15
CN1075283C (zh) 2001-11-21
CN1183179A (zh) 1998-05-27
JP3690810B2 (ja) 2005-08-31
EP0952665B1 (de) 2005-06-08
SG87773A1 (en) 2002-04-16
DE69634835T2 (de) 2005-11-24

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