ES2112992T3 - Filtro adaptable. - Google Patents

Filtro adaptable.

Info

Publication number
ES2112992T3
ES2112992T3 ES93919204T ES93919204T ES2112992T3 ES 2112992 T3 ES2112992 T3 ES 2112992T3 ES 93919204 T ES93919204 T ES 93919204T ES 93919204 T ES93919204 T ES 93919204T ES 2112992 T3 ES2112992 T3 ES 2112992T3
Authority
ES
Spain
Prior art keywords
elemental
filters
function
filter
established
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
ES93919204T
Other languages
English (en)
Inventor
Konrad Weigl
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.)
Institut National de Recherche en Informatique et en Automatique INRIA
Original Assignee
Institut National de Recherche en Informatique et en Automatique INRIA
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
Priority claimed from DE4326487A external-priority patent/DE4326487C2/de
Application filed by Institut National de Recherche en Informatique et en Automatique INRIA filed Critical Institut National de Recherche en Informatique et en Automatique INRIA
Application granted granted Critical
Publication of ES2112992T3 publication Critical patent/ES2112992T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters

Landscapes

  • Complex Calculations (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

SE TRATA DE UN FILTRO ADAPTIVO PARA APROXIMAR UNA FUNCION DE ENTRADA ESTABLECIDA F EN UN ESPACIO FUNCIONAL, QUE CONTIENE UN CONJUNTO DE N FILTROS ELEMENTALES GB, SIENDO N UN ENTERO >=1. LOS FILTROS ELEMENTALES CUBREN UN SUBESPACIO EN EL ESPACIO DE FUNCIONES, PUDIENDO CAMBIARSE LOS PARAMETROS DEL FILTRO ELEMENTAL, Y REALIZANDO EL FILTRO LA SIGUIENTE OPERACION: CALCULA LAS PROYECCIONES NORMALES DE LA FUNCION ESTABLECIDA F SOBRE CADA FILTRO ELEMENTAL Y MULTIPLICA LAS CANTIDADES AA DE LA PROYECCION NORMAL ASI OBTENIDAS, POR EL TENSOR METRICO CONTRAVARIANTE GAB FORMADO POR EL CONJUNTO DE FILTROS ELEMENTALES, PARA OBTENER ASI LA PROYECCION DE LA FUNCION ESTABLECIDA F SOBRE EL SUBESPACIO CUBIERTO, CUYA DIFERENCIA D CON LA FUNCION ESTABLECIDA F, VIENE DETERMINADA COMO UNA FUNCION DEL FILTRO ELEMENTAL Y DEL TENSOR METRICO DE ACUERDO CON LA FORMULA MENCIONADA (I), PARA MINIMIZARLA CAMBIANDO LOS PARAMETROS DEL FILTRO ELEMENTAL POR METODOS DE CALCULO CONVENCIONALES, BIEN DETERMINISTAS (P.E. METODO DE DISMINUCION DE GRADIENTE) O ESTOCASTICOS (P.E. METODO DE MONTE CARLO), Y OBTENIENDO LA FUNCION APROXIMADA DESEADA POR LA SUPERPOSICION DE LOS FILTROS ELEMENTALES FIJADOS POR MINIMIZACION DE ACUERDO CON LA FORMULA (II).
ES93919204T 1992-09-16 1993-08-27 Filtro adaptable. Expired - Lifetime ES2112992T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4231005 1992-09-16
DE4326487A DE4326487C2 (de) 1992-09-16 1993-08-06 Adaptives Filter

Publications (1)

Publication Number Publication Date
ES2112992T3 true ES2112992T3 (es) 1998-04-16

Family

ID=25918587

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93919204T Expired - Lifetime ES2112992T3 (es) 1992-09-16 1993-08-27 Filtro adaptable.

Country Status (4)

Country Link
EP (1) EP0612447B1 (es)
JP (1) JPH07501434A (es)
ES (1) ES2112992T3 (es)
WO (1) WO1994007308A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736740A1 (fr) * 1995-07-11 1997-01-17 Trt Telecom Radio Electr Procede de production et d'assemblage de carte a circuit integre et carte ainsi obtenue

Also Published As

Publication number Publication date
EP0612447A1 (de) 1994-08-31
EP0612447B1 (de) 1997-10-29
WO1994007308A1 (de) 1994-03-31
JPH07501434A (ja) 1995-02-09

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