CA2269055C - Method for the transmission of digital signals - Google Patents

Method for the transmission of digital signals Download PDF

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Publication number
CA2269055C
CA2269055C CA002269055A CA2269055A CA2269055C CA 2269055 C CA2269055 C CA 2269055C CA 002269055 A CA002269055 A CA 002269055A CA 2269055 A CA2269055 A CA 2269055A CA 2269055 C CA2269055 C CA 2269055C
Authority
CA
Canada
Prior art keywords
noise
test sequence
recited
signal
data
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 - Fee Related
Application number
CA002269055A
Other languages
English (en)
French (fr)
Other versions
CA2269055A1 (en
Inventor
Dietmar Rudolph
Christian Horlle
Andreas Schafer
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.)
Deutsche Telekom AG
Original Assignee
Deutsche Telekom AG
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 Deutsche Telekom AG filed Critical Deutsche Telekom AG
Publication of CA2269055A1 publication Critical patent/CA2269055A1/en
Application granted granted Critical
Publication of CA2269055C publication Critical patent/CA2269055C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/241—Testing correct operation using pseudo-errors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Noise Elimination (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Optical Communication System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
CA002269055A 1996-11-08 1997-11-03 Method for the transmission of digital signals Expired - Fee Related CA2269055C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19646164A DE19646164A1 (de) 1996-11-08 1996-11-08 Verfahren zur Übertragung digitaler Signale
DE19646164.2 1996-11-08
PCT/EP1997/006042 WO1998021849A1 (de) 1996-11-08 1997-11-03 Verfahren zur störsignalunterdrückung bei der übertragung digitaler signale

Publications (2)

Publication Number Publication Date
CA2269055A1 CA2269055A1 (en) 1998-05-22
CA2269055C true CA2269055C (en) 2005-01-18

Family

ID=7811082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002269055A Expired - Fee Related CA2269055C (en) 1996-11-08 1997-11-03 Method for the transmission of digital signals

Country Status (8)

Country Link
US (1) US6501804B1 (enExample)
EP (1) EP0944973B1 (enExample)
JP (1) JP3892911B2 (enExample)
CN (1) CN1146182C (enExample)
AT (1) ATE286332T1 (enExample)
CA (1) CA2269055C (enExample)
DE (2) DE19646164A1 (enExample)
WO (1) WO1998021849A1 (enExample)

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JP3385266B2 (ja) * 2000-11-27 2003-03-10 富士通株式会社 雑音除去方法及び装置
US7502430B2 (en) 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7778365B2 (en) 2001-04-27 2010-08-17 The Directv Group, Inc. Satellite TWTA on-line non-linearity measurement
US7639759B2 (en) 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
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
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7209524B2 (en) 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7151807B2 (en) 2001-04-27 2006-12-19 The Directv Group, Inc. Fast acquisition of timing and carrier frequency from received signal
US7822154B2 (en) 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
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
US7184473B2 (en) 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7483505B2 (en) 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
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
US8005035B2 (en) 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
JP3427381B2 (ja) 2001-06-20 2003-07-14 富士通株式会社 雑音キャンセル方法及び装置
JP3407254B1 (ja) * 2002-01-31 2003-05-19 富士通株式会社 データ伝送システム及びデータ伝送制御方法
AR040366A1 (es) 2002-07-01 2005-03-30 Hughes Electronics Corp Mejora del rendimiento de la modulacion jerarquica por desplazamiento de ocho fases (8psk)
CA2491259C (en) 2002-07-03 2013-09-17 The Directv Group, Inc. Method and apparatus for layered modulation
DE60335295D1 (de) 2002-10-25 2011-01-20 Directv Group Inc Verfahren und vorrichtung zum anpassen von trägerleistungsanforderungen gemäss verfügbarkeit in geschichteten modulationssystemen
US7474710B2 (en) 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
AU2003286494A1 (en) 2002-10-25 2004-05-25 The Directv Group, Inc. Estimating the operating point on a nonlinear traveling wave tube amplifier
CA2503530C (en) 2002-10-25 2009-12-22 The Directv Group, Inc. Lower complexity layered modulation signal processor
US7529312B2 (en) 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
US7463676B2 (en) 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
US7307666B2 (en) * 2003-01-30 2007-12-11 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Industry Through The Communications Research Centre Canada Transmitter identification system
CA2453902A1 (en) * 2003-01-30 2004-07-30 Brian A. Harron Gimballed reflector mounting platform
US7298396B2 (en) * 2003-08-25 2007-11-20 Spx Corporation Apparatus and method for monitoring transmission systems using embedded test signals
AU2004218611B2 (en) * 2003-10-10 2007-03-08 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7502429B2 (en) 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
GB2435660B (en) * 2004-11-22 2009-10-14 Baker Hughes Inc Identification of the channel frequency response using chirps
US7313052B2 (en) * 2005-04-08 2007-12-25 Baker Hughes Incorporated System and methods of communicating over noisy communication channels
GB2472535B (en) * 2005-04-08 2011-04-13 Baker Hughes Inc System and methods of communicating over noisy communication channels
WO2019167140A1 (ja) * 2018-02-27 2019-09-06 三菱電機株式会社 無線通信システムおよび干渉抑圧方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511274A1 (de) * 1985-03-28 1986-10-09 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum erfassen der pegelaenderungen eines pilotfrequenzsignals
EP0497433B1 (en) * 1987-06-23 1995-09-20 Nec Corporation Phase controlled demodulation system for digital communication
JPH036156A (ja) * 1989-06-01 1991-01-11 Mitsubishi Electric Corp データ伝送路障害検知回路
DE4004576C1 (enExample) * 1990-02-14 1991-02-21 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen, De
FR2672453B1 (fr) * 1991-01-31 1993-04-09 Alcatel Telspace Procede de detection de signal perturbateur pour demodulateur de donnees numeriques et dispositif de mise en óoeuvre d'un tel procede.
JP3269577B2 (ja) * 1991-10-02 2002-03-25 モトローラ・インコーポレイテッド ビット誤り率検出方法
DE4201542C2 (de) * 1992-01-22 1994-03-03 Rohde & Schwarz Anordnung zum Unterdrücken von im Empfangssignal des Empfängers eines Hochfrequenz-Nachrichten-Übertragungssystems auftretenden Störsignalen
JP2760240B2 (ja) * 1992-03-11 1998-05-28 松下電器産業株式会社 雑音抑圧装置
US5430894A (en) * 1992-03-11 1995-07-04 Matsushita Electric Industrial Co., Ltd. Radio receiver noise suppression system
DE4335843C2 (de) * 1993-10-20 1997-02-13 Siemens Ag Verfahren zur Elimination digitaler quasiperiodischer Störsignale
DE4430348C2 (de) * 1994-08-26 1998-04-02 Rohde & Schwarz Verfahren zum Trennen von Carrier-Signal und Interferer-Signal in einem Funksignal eines Mobilfunknetzes
DE19535075A1 (de) 1994-10-21 1996-04-25 Deutsche Telekom Ag Digitalmodulation
JP2685031B2 (ja) * 1995-06-30 1997-12-03 日本電気株式会社 雑音消去方法及び雑音消去装置
US5995567A (en) * 1996-04-19 1999-11-30 Texas Instruments Incorporated Radio frequency noise canceller
JPH1141141A (ja) * 1997-05-21 1999-02-12 Mitsubishi Electric Corp スペクトル拡散信号受信方法及びスペクトル拡散信号受信装置
US5903615A (en) * 1998-03-30 1999-05-11 3Com Corporation Low complexity frequency estimator and interference cancellation method and device
US6122015A (en) * 1998-12-07 2000-09-19 General Electric Company Method and apparatus for filtering digital television signals

Also Published As

Publication number Publication date
DE59712149D1 (de) 2005-02-03
US6501804B1 (en) 2002-12-31
DE19646164A1 (de) 1998-05-14
EP0944973A1 (de) 1999-09-29
CN1236514A (zh) 1999-11-24
ATE286332T1 (de) 2005-01-15
CA2269055A1 (en) 1998-05-22
JP3892911B2 (ja) 2007-03-14
JP2001504291A (ja) 2001-03-27
CN1146182C (zh) 2004-04-14
WO1998021849A1 (de) 1998-05-22
EP0944973B1 (de) 2004-12-29

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Effective date: 20121105