ES2079294A2 - Receptor a rafagas con demodulacion diferencial. - Google Patents

Receptor a rafagas con demodulacion diferencial.

Info

Publication number
ES2079294A2
ES2079294A2 ES09302130A ES9302130A ES2079294A2 ES 2079294 A2 ES2079294 A2 ES 2079294A2 ES 09302130 A ES09302130 A ES 09302130A ES 9302130 A ES9302130 A ES 9302130A ES 2079294 A2 ES2079294 A2 ES 2079294A2
Authority
ES
Spain
Prior art keywords
signal
adaptive filtering
output
differential demodulation
order
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.)
Granted
Application number
ES09302130A
Other languages
English (en)
Other versions
ES2079294R (es
ES2079294B1 (es
Inventor
Pino Juarez Antonio Del
Pedraja Fidel Garcia
Rodriguez Antonio Artes
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.)
Nokia Spain SA
Original Assignee
Alcatel Standard Electrics SA
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 Alcatel Standard Electrics SA filed Critical Alcatel Standard Electrics SA
Priority to ES9302130A priority Critical patent/ES2079294B1/es
Priority to EP94113282A priority patent/EP0648036A1/en
Priority to AU71656/94A priority patent/AU678032B2/en
Priority to NZ26441694A priority patent/NZ264416A/en
Priority to PL94305353A priority patent/PL174750B1/pl
Priority to RU94036446/09A priority patent/RU94036446A/ru
Priority to CN 94116843 priority patent/CN1118539A/zh
Publication of ES2079294A2 publication Critical patent/ES2079294A2/es
Publication of ES2079294R publication Critical patent/ES2079294R/es
Application granted granted Critical
Publication of ES2079294B1 publication Critical patent/ES2079294B1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • 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
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms

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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

RECEPTOR A RAFAGAS CON DEMODULACION DIFERENCIAL. DE ESPECIAL APLICACION EN SISTEMAS DIGITALES DE RADIOCOMUNICACIONES CON ACCESO MULTIPLE POR DIVISION EN EL TIEMPO. RECIBE UNA SEÑAL DE ENTRADA PASO BANDA (S) QUE ES BIFURCADA EN DOS RAMAS IGUALES POR UN DIVISOR (1) PARA OBTENER, MEDIANTE UNOS MEDIOS DE CONVERSION DE FRECUENCIA (2), SENDAS SEÑALES PASO BAJO EN FASE Y CUADRATURA (IS, QS) QUE SON ENVIADAS A UNOS MEDIOS DE FILTRADO ADAPTATIVO (3) QUE ECUALIZAN EL CANAL DE COMUNICACIONES, PRESENTANDO A SU SALIDA UNA SEÑAL ECUALIZADA (RC) QUE ES FINALMENTE DEMODULADA EN UNOS MEDIOS DE DEMODULACION DIFERENCIAL (4) CUYA SALIDA (RD) SE ENVIA A UNOS MEDIOS DE DECISION (5) QUE GENERAN LA SEÑAL DE DATOS DE SALIDA (D). DICHA SEÑAL DE DATOS DE SALIDA (D), LA SEÑAL DEMODULADA (RD) Y LA SEÑAL ECUALIZADA RETARDADA UN PERIODO DE SIMBOLO (RT), SON UTILIZADAS POR LOS MEDIOS DE FILTRADO ADAPTATIVO (3) PARA ACTUALIZAR LOS COEFICIENTES UTILIZADOS EN EL FILTRADO ADAPTATIVO.
ES9302130A 1993-10-08 1993-10-08 Receptor a rafagas con demodulacion diferencial. Expired - Lifetime ES2079294B1 (es)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES9302130A ES2079294B1 (es) 1993-10-08 1993-10-08 Receptor a rafagas con demodulacion diferencial.
EP94113282A EP0648036A1 (en) 1993-10-08 1994-08-25 Burst receiver with differential demodulation
AU71656/94A AU678032B2 (en) 1993-10-08 1994-09-06 Burst differential receiver
NZ26441694A NZ264416A (en) 1993-10-08 1994-09-08 Receiver with adaptive filtering and differential demodulation of quadrature signals
PL94305353A PL174750B1 (pl) 1993-10-08 1994-10-07 Odbiornik impulsów radiowych z demodulacją różnicową
RU94036446/09A RU94036446A (ru) 1993-10-08 1994-10-07 Приемник пачек импульсов с дифференциальной демодуляцией
CN 94116843 CN1118539A (zh) 1993-10-08 1994-10-07 采用差动解调器的无线脉冲接收器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9302130A ES2079294B1 (es) 1993-10-08 1993-10-08 Receptor a rafagas con demodulacion diferencial.

Publications (3)

Publication Number Publication Date
ES2079294A2 true ES2079294A2 (es) 1996-01-01
ES2079294R ES2079294R (es) 1996-11-01
ES2079294B1 ES2079294B1 (es) 1997-06-01

Family

ID=8283278

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9302130A Expired - Lifetime ES2079294B1 (es) 1993-10-08 1993-10-08 Receptor a rafagas con demodulacion diferencial.

Country Status (7)

Country Link
EP (1) EP0648036A1 (es)
CN (1) CN1118539A (es)
AU (1) AU678032B2 (es)
ES (1) ES2079294B1 (es)
NZ (1) NZ264416A (es)
PL (1) PL174750B1 (es)
RU (1) RU94036446A (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9112754B2 (en) 2013-10-08 2015-08-18 Freescale Semiconductor, Inc. Techniques for generating bit log-likelihood ratios in communication systems using differential modulation
CN105510653B (zh) * 2015-12-07 2018-11-06 国网天津市电力公司 一种基于自适应最小均方算法的正交信号发生器系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES489541A1 (es) * 1979-03-16 1980-09-16 Philips Nv Un dispositivo de filtro adaptativo que tiene un circuito deretardo
EP0376250A1 (fr) * 1988-12-30 1990-07-04 Alcatel Telspace Dispositif d'égalisation auto-adaptative pour installation de démodulation différentiellement cohérente
EP0524560A2 (en) * 1991-07-26 1993-01-27 General Instrument Corporation Of Delaware Method and apparatus for updating coefficients in a complex adaptive equalizer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES489541A1 (es) * 1979-03-16 1980-09-16 Philips Nv Un dispositivo de filtro adaptativo que tiene un circuito deretardo
EP0376250A1 (fr) * 1988-12-30 1990-07-04 Alcatel Telspace Dispositif d'égalisation auto-adaptative pour installation de démodulation différentiellement cohérente
EP0524560A2 (en) * 1991-07-26 1993-01-27 General Instrument Corporation Of Delaware Method and apparatus for updating coefficients in a complex adaptive equalizer

Also Published As

Publication number Publication date
NZ264416A (en) 1997-05-26
RU94036446A (ru) 1996-08-27
AU678032B2 (en) 1997-05-15
ES2079294R (es) 1996-11-01
PL305353A1 (en) 1995-04-18
ES2079294B1 (es) 1997-06-01
PL174750B1 (pl) 1998-09-30
AU7165694A (en) 1995-05-11
CN1118539A (zh) 1996-03-13
EP0648036A1 (en) 1995-04-12

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