IT1119567B - Equalizzatore numerico adattativo per ricevitori di segnali dati utilizzanti una modulazione differenziale di fase - Google Patents

Equalizzatore numerico adattativo per ricevitori di segnali dati utilizzanti una modulazione differenziale di fase

Info

Publication number
IT1119567B
IT1119567B IT69173/79A IT6917379A IT1119567B IT 1119567 B IT1119567 B IT 1119567B IT 69173/79 A IT69173/79 A IT 69173/79A IT 6917379 A IT6917379 A IT 6917379A IT 1119567 B IT1119567 B IT 1119567B
Authority
IT
Italy
Prior art keywords
equalizer
numeric
adaptive
data signal
phase modulation
Prior art date
Application number
IT69173/79A
Other languages
English (en)
Other versions
IT7969173A0 (it
Inventor
Enrico Impallomeni
Roberto Montagna
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT69173/79A priority Critical patent/IT1119567B/it
Publication of IT7969173A0 publication Critical patent/IT7969173A0/it
Priority to US06/204,535 priority patent/US4330861A/en
Application granted granted Critical
Publication of IT1119567B publication Critical patent/IT1119567B/it

Links

Classifications

    • 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
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IT69173/79A 1979-11-08 1979-11-08 Equalizzatore numerico adattativo per ricevitori di segnali dati utilizzanti una modulazione differenziale di fase IT1119567B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT69173/79A IT1119567B (it) 1979-11-08 1979-11-08 Equalizzatore numerico adattativo per ricevitori di segnali dati utilizzanti una modulazione differenziale di fase
US06/204,535 US4330861A (en) 1979-11-08 1980-11-06 Digital equalizer for signal receiver in QPSK data-transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69173/79A IT1119567B (it) 1979-11-08 1979-11-08 Equalizzatore numerico adattativo per ricevitori di segnali dati utilizzanti una modulazione differenziale di fase

Publications (2)

Publication Number Publication Date
IT7969173A0 IT7969173A0 (it) 1979-11-08
IT1119567B true IT1119567B (it) 1986-03-10

Family

ID=11311484

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69173/79A IT1119567B (it) 1979-11-08 1979-11-08 Equalizzatore numerico adattativo per ricevitori di segnali dati utilizzanti una modulazione differenziale di fase

Country Status (2)

Country Link
US (1) US4330861A (it)
IT (1) IT1119567B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411000A (en) * 1980-09-08 1983-10-18 Bell Telephone Laboratories, Incorporated Timing recovery technique
FR2505111B1 (fr) * 1981-04-29 1986-04-18 Labo Electronique Physique Dispositif de recuperation de porteuse pour une modulation d'amplitude et de phase a seize etats et systeme de reception de donnees numeriques comprenant un tel dispositif
US4422175A (en) * 1981-06-11 1983-12-20 Racal-Vadic, Inc. Constrained adaptive equalizer
US4433422A (en) * 1982-03-29 1984-02-21 Sperry Corporation Frequency measuring system for alternating frequency signals
US4475211A (en) * 1982-09-13 1984-10-02 Communications Satellite Corporation Digitally controlled transversal equalizer
JPS59194540A (ja) * 1983-04-19 1984-11-05 Nec Corp 自動適応型等化器
US4705229A (en) 1983-10-17 1987-11-10 Mounque Barazone Compact apparatus for laying paving fabric
JPS6121660A (ja) * 1984-07-10 1986-01-30 Toshiba Corp 搬送波再生回路
US4703357A (en) * 1985-12-24 1987-10-27 Rca Corporation Adaptive television deghosting system
JPS6335045A (ja) * 1986-07-30 1988-02-15 Nec Corp 位相ヒツト補償装置
US6052413A (en) * 1996-04-16 2000-04-18 Matsushita Electric Industrial Co., Ltd. Apparatus and method for waveform equalization coefficient generation
US7613253B2 (en) * 2002-07-03 2009-11-03 Telefonaktiebolaget L M Ericsson (Publ) Noise balanced QAM detection
US7680869B2 (en) * 2005-03-30 2010-03-16 Stmicroelectronics Ltd. Interpolation and decimation using newton polyphase filters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412777B1 (it) * 1971-06-28 1979-05-25
US3878468A (en) * 1974-01-30 1975-04-15 Bell Telephone Labor Inc Joint equalization and carrier recovery adaptation in data transmission systems
US3935535A (en) * 1974-09-09 1976-01-27 Hycom Incorporated Fast equalization acquisition for automatic adaptive digital modem
JPS5152264A (it) * 1974-09-11 1976-05-08 Sharp Kk
DE2544124C3 (de) * 1974-10-04 1982-02-25 CSELT-Centro Studi e Laboratori Telecomunicazioni S.p.A., Torino Rückkopplungsentzerrer
IT1030453B (it) * 1975-03-27 1979-03-30 Cselt Centro Studi Lab Telecom Organo di decisione per ricevitori di segnali numerici a piu livelli modulati in fase o in fase e ampiezza

Also Published As

Publication number Publication date
IT7969173A0 (it) 1979-11-08
US4330861A (en) 1982-05-18

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