ES2167352T3 - Estimador en banda de base de la caracteristica amplitud/frecuencia. - Google Patents

Estimador en banda de base de la caracteristica amplitud/frecuencia.

Info

Publication number
ES2167352T3
ES2167352T3 ES94403031T ES94403031T ES2167352T3 ES 2167352 T3 ES2167352 T3 ES 2167352T3 ES 94403031 T ES94403031 T ES 94403031T ES 94403031 T ES94403031 T ES 94403031T ES 2167352 T3 ES2167352 T3 ES 2167352T3
Authority
ES
Spain
Prior art keywords
estimator
amplitude
base band
frequency characteristics
components
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
ES94403031T
Other languages
English (en)
Inventor
Michel Comte
Gerard Lample
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
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel 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 CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Application granted granted Critical
Publication of ES2167352T3 publication Critical patent/ES2167352T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

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)
  • Superheterodyne Receivers (AREA)

Abstract

LA INVENCION SE REFIERE A UN ESTIMADOR (19) DE LA CARACTERISTICA AMPLITUD/FRECUENCIA DE UNA SEÑAL FUENTE DE LA QUE SALEN POR DEMODULACION MEDIANTE DOS SEÑALES DE FASE ORTOGONALES COMPONENTES I Y Q EN BANDA DE BASE QUE SE APLICAN A LAS ENTRADAS DEL ESTIMADOR (19). EL ESTIMADOR (19) COMPRENDE MEDIOS DE COMBINACION (32, 33) PARA GENERAR COMPONENTES COMPLEJAS I+J.Q Y Q+J.I A PARTIR DE LAS COMPONENTES I Y Q, ASI COMO MEDIOS (34 A 40) PARA EVALUAR LAS AMPLITUDES RELATIVAS DE ESTAS COMPONENTES COMPLEJAS (I+J.Q Y Q+J.I) CON EL FIN DE PROPORCIONAR UN COEFICIENTE (KP) REPRESENTATIVO DE LA CARACTERISTICA AMPLITUD/FRECUENCIA DE LA SEÑAL FUENTE. LA INVENCION PERMITE PARTICULARMENTE REALIZAR UN IGUALADOR FRECUENCIAL CUYO ESTIMADOR FUNCIONA EN BANDA DE BASE, PUDIENDO ESTE ESTIMADOR CONTROLAR UN FILTRO TRANSVERSAL QUE FUNCIONA EN FRECUENCIA INTERMEDIA O EN HIPERFRECUENCIA.
ES94403031T 1993-12-30 1994-12-27 Estimador en banda de base de la caracteristica amplitud/frecuencia. Expired - Lifetime ES2167352T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9315906A FR2714782B1 (fr) 1993-12-30 1993-12-30 Estimateur en bande de base de la caractéristique amplitude/fréquence d'un signal à pluralités de phases.

Publications (1)

Publication Number Publication Date
ES2167352T3 true ES2167352T3 (es) 2002-05-16

Family

ID=9454602

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94403031T Expired - Lifetime ES2167352T3 (es) 1993-12-30 1994-12-27 Estimador en banda de base de la caracteristica amplitud/frecuencia.

Country Status (9)

Country Link
US (1) US5677932A (es)
EP (1) EP0661833B1 (es)
JP (1) JPH07212426A (es)
AU (1) AU687461B2 (es)
CA (1) CA2139218A1 (es)
DE (1) DE69429501T2 (es)
ES (1) ES2167352T3 (es)
FR (1) FR2714782B1 (es)
NZ (1) NZ270098A (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786887A1 (fr) * 1996-01-29 1997-07-30 ALCATEL ITALIA S.p.A. Procédé de compensation des différences en temps de propagation de groupe entre les filtres analogiques d'un émetteur ou d'un récepteur de signaux en quadrature de phase
DE19627788A1 (de) * 1996-07-10 1998-01-15 Bosch Gmbh Robert Umschaltbare Frequenzweiche
US5963594A (en) * 1996-12-31 1999-10-05 Lucent Technologies Inc. Vector tracking filter
US6377967B1 (en) * 1998-08-12 2002-04-23 Northrop Grumman Corporation Efficient digital integration technique filter
US20030007583A1 (en) * 2001-04-30 2003-01-09 Hilton Howard E. Correction of multiple transmission impairments
JP4563897B2 (ja) * 2005-08-30 2010-10-13 日本放送協会 マルチパス等化装置及びそれを備えた再送信装置
JP4800026B2 (ja) * 2005-12-16 2011-10-26 三星電子株式会社 複素係数トランスバーサルフィルタおよび周波数変換器
NZ629722A (en) 2012-02-29 2017-03-31 Pulmatrix Operating Co Inc Inhalable dry powders

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020333A (en) * 1975-05-06 1977-04-26 International Business Machines Corporation Digital filter for filtering complex signals
JPS59194540A (ja) * 1983-04-19 1984-11-05 Nec Corp 自動適応型等化器
EP0366159A1 (en) * 1986-01-18 1990-05-02 Hewlett-Packard Limited Non intrusive channel impairment analyser
FR2706714B1 (fr) * 1993-06-17 1995-07-21 Alcatel Telspace Système de réception d'un signal numérique à modulation de phase et d'amplitude.

Also Published As

Publication number Publication date
DE69429501T2 (de) 2002-08-01
US5677932A (en) 1997-10-14
FR2714782A1 (fr) 1995-07-07
FR2714782B1 (fr) 1996-02-02
AU8030294A (en) 1995-07-06
EP0661833A1 (fr) 1995-07-05
DE69429501D1 (de) 2002-01-31
CA2139218A1 (fr) 1995-07-01
AU687461B2 (en) 1998-02-26
JPH07212426A (ja) 1995-08-11
NZ270098A (en) 1996-12-20
EP0661833B1 (fr) 2001-12-19

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