NO163929C - Kombinert adaptiv utjevnings- og demoduleringskrets. - Google Patents

Kombinert adaptiv utjevnings- og demoduleringskrets.

Info

Publication number
NO163929C
NO163929C NO841836A NO841836A NO163929C NO 163929 C NO163929 C NO 163929C NO 841836 A NO841836 A NO 841836A NO 841836 A NO841836 A NO 841836A NO 163929 C NO163929 C NO 163929C
Authority
NO
Norway
Prior art keywords
demodulation circuit
adaptive calculation
combined adaptive
combined
calculation
Prior art date
Application number
NO841836A
Other languages
English (en)
Other versions
NO841836L (no
NO163929B (no
Inventor
Lydie Desperben
Hikmet Sari
Said Moridi
Georges Bonnerot
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of NO841836L publication Critical patent/NO841836L/no
Publication of NO163929B publication Critical patent/NO163929B/no
Publication of NO163929C publication Critical patent/NO163929C/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
NO841836A 1983-05-11 1984-05-08 Kombinert adaptiv utjevnings- og demoduleringskrets. NO163929C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8307910A FR2546008B1 (fr) 1983-05-11 1983-05-11 Circuit d'egalisation adaptative et de demodulation conjointes

Publications (3)

Publication Number Publication Date
NO841836L NO841836L (no) 1984-11-12
NO163929B NO163929B (no) 1990-04-30
NO163929C true NO163929C (no) 1990-08-08

Family

ID=9288812

Family Applications (1)

Application Number Title Priority Date Filing Date
NO841836A NO163929C (no) 1983-05-11 1984-05-08 Kombinert adaptiv utjevnings- og demoduleringskrets.

Country Status (9)

Country Link
US (1) US4594725A (no)
EP (1) EP0125722B1 (no)
JP (1) JPS59211337A (no)
AU (1) AU563907B2 (no)
CA (1) CA1211515A (no)
DE (1) DE3461977D1 (no)
FI (1) FI76655C (no)
FR (1) FR2546008B1 (no)
NO (1) NO163929C (no)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8406846D0 (en) * 1984-03-16 1984-04-18 British Telecomm Digital filters
GB2181008B (en) * 1985-09-25 1989-09-20 Sony Corp Infinite impulse response filters
US4716577A (en) * 1986-07-07 1987-12-29 Rockwell International Corporation Autoequalizer
FR2627032A1 (fr) * 1988-02-09 1989-08-11 Alcatel Thomson Faisceaux Filtre transverse
US4989170A (en) * 1988-06-09 1991-01-29 National Semiconductor Corporation Hybrid stochastic gradient for convergence of adaptive filter
JPH065822B2 (ja) * 1989-01-19 1994-01-19 日本電気株式会社 並列処理形トランスバーサル等化器
SE462943B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer frekvensstyrning av en koherent radiomottagare
SE462942B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare
FR2644638B1 (no) * 1989-03-14 1991-05-31 Labo Electronique Physique
US4947408A (en) * 1989-05-12 1990-08-07 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Digital carrier demodulator employing components working beyond normal limits
US5067140A (en) * 1989-08-16 1991-11-19 Titan Linkabit Corporation Conversion of analog signal into i and q digital signals with enhanced image rejection
GB2282030B (en) * 1993-09-14 1997-09-24 Plessey Semiconductors Ltd Direct conversion receiver
CN1082301C (zh) * 1994-09-10 2002-04-03 三星电子株式会社 数字无线电收发机
ES2101639B1 (es) * 1994-10-21 1998-03-01 Alcatel Standard Electrica Ecualizador adaptativo.
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
US7639759B2 (en) * 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
US7483505B2 (en) * 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
US7184473B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7502430B2 (en) * 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7173981B1 (en) * 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7184489B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7822154B2 (en) * 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US7471735B2 (en) * 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7583728B2 (en) * 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7151807B2 (en) * 2001-04-27 2006-12-19 The Directv Group, Inc. Fast acquisition of timing and carrier frequency from received signal
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
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
CA2489569C (en) * 2002-07-01 2012-05-22 The Directv Group, Inc. Improving hierarchical 8psk performance
AU2003281452A1 (en) * 2002-07-03 2004-01-23 The Directv Group, Inc. Method and apparatus for layered modulation
ES2398213T3 (es) 2002-10-25 2013-03-14 The Directv Group, Inc. Procesador de señal de modulación en capas de baja complejidad
US7474710B2 (en) * 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
US7463676B2 (en) * 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
US7529312B2 (en) * 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
CA2503532C (en) * 2002-10-25 2011-03-01 The Directv Group, Inc. Estimating the operating point on a nonlinear traveling wave tube amplifier
EP1579706B1 (en) * 2002-10-25 2010-12-08 The Directv Group, Inc. Method and apparatus for tailoring carrier power requirements according to availability in layered modulation systems
US7502429B2 (en) * 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
US9148162B2 (en) * 2014-01-15 2015-09-29 Guzik Technical Enterprises Digital down converter with equalization

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2167441B1 (no) * 1972-01-10 1977-07-15 Ibm France
FR2216715B1 (no) * 1973-01-31 1976-06-11 Ibm France
US4475211A (en) * 1982-09-13 1984-10-02 Communications Satellite Corporation Digitally controlled transversal equalizer

Also Published As

Publication number Publication date
FR2546008A1 (fr) 1984-11-16
FI841834A (fi) 1984-11-12
DE3461977D1 (en) 1987-02-12
CA1211515A (en) 1986-09-16
FI841834A0 (fi) 1984-05-08
AU2787884A (en) 1984-11-15
NO841836L (no) 1984-11-12
EP0125722A1 (fr) 1984-11-21
JPS59211337A (ja) 1984-11-30
FR2546008B1 (fr) 1985-07-12
FI76655B (fi) 1988-07-29
US4594725A (en) 1986-06-10
NO163929B (no) 1990-04-30
JPH0342735B2 (no) 1991-06-28
FI76655C (fi) 1988-11-10
EP0125722B1 (fr) 1987-01-07
AU563907B2 (en) 1987-07-23

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