ES2057086T3 - Dispositivo ecualizador auto-adaptable para instalacion de demodulacion diferencialmente coherente. - Google Patents

Dispositivo ecualizador auto-adaptable para instalacion de demodulacion diferencialmente coherente.

Info

Publication number
ES2057086T3
ES2057086T3 ES89123959T ES89123959T ES2057086T3 ES 2057086 T3 ES2057086 T3 ES 2057086T3 ES 89123959 T ES89123959 T ES 89123959T ES 89123959 T ES89123959 T ES 89123959T ES 2057086 T3 ES2057086 T3 ES 2057086T3
Authority
ES
Spain
Prior art keywords
self
adaptable
installation
coherent demodulation
equalizing device
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
ES89123959T
Other languages
English (en)
Inventor
Philippe Sehier
Kaleh Ghassan Alcatel Tr Kawas
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.)
Alcatel CIT SA
Original Assignee
Alcatel Telspace 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 Telspace SA filed Critical Alcatel Telspace SA
Application granted granted Critical
Publication of ES2057086T3 publication Critical patent/ES2057086T3/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

DISPOSITIVO DE IGUALACION AUTO-ADAPTABLE PARA RECEPTOR DE DESMODULACION DIFERENCIAL, EN PARTICULAR DE VARIAS VIAS DE DIVERSIDAD (1,2). CONSTA, PARA CADA VIA DE DIVERSIDAD (1,2) DE UN FILTRO AUTO-ADAPTABLE (18,19) SITUADO POR DELANTE DEL DESMODULADOR DIFERENCIAL. LOS COEFICIENTES (CO A CN) DE ESTE FILTRO SE ACTUALIZAN A CADA INSTANTE KT POR LA FORMULA: CI (K) = CI (K - 1) - (MU) . Y (K - 1) . X (K - I) * . E (K), DONDE (MU) ES UN NUMERO REAL MUY INFERIOR A 1, POR EJEMPLO IGUAL A 0,001.
ES89123959T 1988-12-30 1989-12-27 Dispositivo ecualizador auto-adaptable para instalacion de demodulacion diferencialmente coherente. Expired - Lifetime ES2057086T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8817507A FR2641922B1 (fr) 1988-12-30 1988-12-30 Dispositif d'egalisation auto-adaptative pour installation de demodulation differentiellement coherente

Publications (1)

Publication Number Publication Date
ES2057086T3 true ES2057086T3 (es) 1994-10-16

Family

ID=9373644

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89123959T Expired - Lifetime ES2057086T3 (es) 1988-12-30 1989-12-27 Dispositivo ecualizador auto-adaptable para instalacion de demodulacion diferencialmente coherente.

Country Status (8)

Country Link
US (1) US5027371A (es)
EP (1) EP0376250B1 (es)
JP (1) JP2828292B2 (es)
AU (1) AU624455B2 (es)
CA (1) CA2006829C (es)
DE (1) DE68916397T2 (es)
ES (1) ES2057086T3 (es)
FR (1) FR2641922B1 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69227752T2 (de) * 1991-06-20 1999-07-22 Motorola, Inc., Schaumburg, Ill. Einrichtung zur einstellung von signalpunkten, entzerrerverstärkungen und dergleichen
US5230007A (en) * 1991-06-28 1993-07-20 Motorola, Inc. Method for optimizing an adaptive filter update coefficient
FR2685594B1 (fr) * 1991-12-19 1994-01-28 Alcatel Telspace Dispositif de recuperation de rythme pour installation de reception utilisant l'egalisation auto-adaptative a sur-echantillonnage associee a la demodulation differentiellement coherente.
KR960011125B1 (ko) * 1993-01-30 1996-08-20 삼성전자 주식회사 시분할 다중 통신 채널용 디지탈 복조 회로
ES2079294B1 (es) * 1993-10-08 1997-06-01 Alcatel Standard Electrica Receptor a rafagas con demodulacion diferencial.
JP2785858B2 (ja) * 1994-01-28 1998-08-13 日本電気株式会社 高速制御適応フィルタを用いた受信方式
US5519735A (en) * 1994-04-28 1996-05-21 Lockheed Missiles & Space Co., Inc. Reconstructing a primary signal from many secondary signals
US5859871A (en) * 1996-03-12 1999-01-12 British Telecommunications Public Limited Company Transmitting digital signals
FR2750270B1 (fr) * 1996-06-21 1998-08-07 Alcatel Telspace Egaliseur-combineur pour recepteur en diversite, recepteur integrant un tel egaliseur-combineur, et procede de reception en diversite correspondant
JP3646010B2 (ja) * 1998-09-18 2005-05-11 株式会社ケンウッド デジタル衛星放送受信機
US7542100B2 (en) * 2004-04-30 2009-06-02 Telegent Systems, Inc. Video receiver with adaptive image rejection
US7508451B2 (en) * 2004-04-30 2009-03-24 Telegent Systems, Inc. Phase-noise mitigation in an integrated analog video receiver
CN103616848B (zh) * 2013-12-04 2016-08-17 固高科技(深圳)有限公司 改善速度前馈的自适应滤波器的滤波方法和系统
CN112600625B (zh) * 2020-12-08 2022-09-23 复旦大学 测距通信一体的空间激光外差相干解调处理模块和方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295649A1 (fr) * 1974-12-20 1976-07-16 Trt Telecom Radio Electr Egaliseur de ligne autoadaptatif pour systeme de transmission de donnees
JPS5182548A (en) * 1974-12-27 1976-07-20 Fujitsu Ltd Jidotokaki
DE2619392C3 (de) * 1976-04-30 1978-11-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Entzerrer zur adaptiven Basisband-Entzerrung eines phasenmodulierten Signals
US4247940A (en) * 1979-10-15 1981-01-27 Bell Telephone Laboratories, Incorporated Equalizer for complex data signals

Also Published As

Publication number Publication date
JP2828292B2 (ja) 1998-11-25
US5027371A (en) 1991-06-25
DE68916397T2 (de) 1994-10-13
EP0376250B1 (fr) 1994-06-22
CA2006829A1 (fr) 1990-06-30
FR2641922A1 (fr) 1990-07-20
JPH02226917A (ja) 1990-09-10
DE68916397D1 (de) 1994-07-28
AU624455B2 (en) 1992-06-11
EP0376250A1 (fr) 1990-07-04
AU4681289A (en) 1990-07-05
CA2006829C (fr) 1993-06-01
FR2641922B1 (fr) 1991-03-22

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