ES2096333T3 - Combinador de señales de frecuencia intermedia que minimiza la tasa de errores en los bits (ber) en un receptor radio digital con diversidad espacial o angular. - Google Patents

Combinador de señales de frecuencia intermedia que minimiza la tasa de errores en los bits (ber) en un receptor radio digital con diversidad espacial o angular.

Info

Publication number
ES2096333T3
ES2096333T3 ES93922923T ES93922923T ES2096333T3 ES 2096333 T3 ES2096333 T3 ES 2096333T3 ES 93922923 T ES93922923 T ES 93922923T ES 93922923 T ES93922923 T ES 93922923T ES 2096333 T3 ES2096333 T3 ES 2096333T3
Authority
ES
Spain
Prior art keywords
space
digital radio
teb
dispersion
ber
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
ES93922923T
Other languages
English (en)
Inventor
Antonio Bernasconi
Lago Antonella Dal
Maria Pia Sirtori
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.)
Italtel SpA
Original Assignee
Italtel SpA
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 Italtel SpA filed Critical Italtel SpA
Application granted granted Critical
Publication of ES2096333T3 publication Critical patent/ES2096333T3/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
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Structure Of Receivers (AREA)

Abstract

SE DESCRIBE UN COMBINADOR CON ESTRATEGIAS DE COMBINACION MIXTAS PARA RECEPTORES QUE FUNCIONAN EN RADIOENLACES DIGITALES DE ALTA CAPACIDAD Y PROTEGIDOS CON UNA DIVERSIDAD ESPACIAL O ANGULAR. EL COMBINADOR CONSTA DE UN SISTEMA QUE CALCULA LA DISPERSION DE AMPLITUD EN EL ESPECTRO DE FRECUENCIAS DE LA SEÑAL COMBINADA Y DE UN DISPOSITIVO QUE MIDE LA POTENCIA DE LA MISMA. EN BASE A ESTA INFORMACION Y A UNA ESTRATEGIA DE CALCULO APROPIADA SE TIENDE A MINIMIZAR LA TEB DEL EQUIPO, UN MICROPROCESADOR GENERA SEÑALES PARA CONTROLAR DE GANANCIA DE LA RF DE LA ETAPA DE LOS RECEPTORES Y PARA CONTROLAR EL DESFASE DE UN DESFASADOR DE LA SEÑAL DEL OSCILADOR LOCAL ENVIADA A UNO DE LOS RECEPTORES. LA ESTRATEGIA DE CALCULO CONSISTE EN MINIMIZAR UNA FUNCION POLINOMICA DE LOS VALORES DE POTENCIA Y DISPERSION. LA DEPENDENCIA DE LA TEB EN EL FNOTCH QUE CARACTERIZA LA DISPERSION SE ELIMINA, NORMALIZANDO LA DISPERSION EN RELACION AL FNOTCH.
ES93922923T 1992-10-14 1993-10-08 Combinador de señales de frecuencia intermedia que minimiza la tasa de errores en los bits (ber) en un receptor radio digital con diversidad espacial o angular. Expired - Lifetime ES2096333T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI922347A IT1255862B (it) 1992-10-14 1992-10-14 Combinatore a strategia di combinazione mista per ricevitori operanti in ponti radio digitali ad alta capacita' protetti con diversita' di spazio o d'angolo

Publications (1)

Publication Number Publication Date
ES2096333T3 true ES2096333T3 (es) 1997-03-01

Family

ID=11364103

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93922923T Expired - Lifetime ES2096333T3 (es) 1992-10-14 1993-10-08 Combinador de señales de frecuencia intermedia que minimiza la tasa de errores en los bits (ber) en un receptor radio digital con diversidad espacial o angular.

Country Status (15)

Country Link
US (1) US5668839A (es)
EP (1) EP0664939B1 (es)
CN (1) CN1087765A (es)
AT (1) ATE146920T1 (es)
AU (1) AU677242B2 (es)
BR (1) BR9307233A (es)
DE (1) DE69306970T2 (es)
DK (1) DK0664939T3 (es)
ES (1) ES2096333T3 (es)
FI (1) FI951797A0 (es)
GR (1) GR3022861T3 (es)
IT (1) IT1255862B (es)
NO (1) NO309630B1 (es)
WO (1) WO1994009573A1 (es)
ZA (1) ZA937508B (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3576676B2 (ja) * 1996-01-31 2004-10-13 三菱電機株式会社 ダイバーシチ受信機
AU695952B2 (en) * 1996-03-05 1998-08-27 Kabushiki Kaisha Toshiba Radio communications apparatus with a combining diversity
DE19837426C2 (de) * 1998-08-18 2001-12-06 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Senden von Informationssymbolen mittels einer Mehrzahl von Trägern und Verfahren und Vorrichtung zum Empfangen von Informationssymbolen
US6560299B1 (en) * 1999-07-30 2003-05-06 Christopher H Strolle Diversity receiver with joint signal processing
IT1318275B1 (it) * 2000-07-28 2003-07-28 Siemens Inf & Comm Networks Procedimento di ottimizzazione della combinazione dei segnali diricezione nei radioricevitori in diversita' di spazio sulla base della
IT1318274B1 (it) * 2000-07-28 2003-07-28 Siemens Inf & Comm Networks Procedimento per automatizzare l'equalizzazione preliminare deisegnali combinati nei radioricevitori in diversita' di spazio.
US20070259636A1 (en) * 2000-10-27 2007-11-08 Fisher Daniel E RF bridge for an angle rate interferometer
US6694131B1 (en) * 2001-02-21 2004-02-17 Mitsubishi Electric Corporation Method and apparatus for adaptive image rejection
JP3933953B2 (ja) * 2002-02-08 2007-06-20 パイオニア株式会社 複数の局部発振周波数を用いる受信機のａｇｃ回路
US6871304B2 (en) * 2002-08-12 2005-03-22 Nortel Networks Limited Method and apparatus for adjusting receiver voltage threshold and phase sampling point using FEC counts
KR100548321B1 (ko) * 2003-01-07 2006-02-02 엘지전자 주식회사 동위상 합성 다이버시티 수신 장치 및 방법
CN101167257A (zh) * 2003-07-21 2008-04-23 美国博通公司 利用基于最小误码率的射频和基带信号加权组合为多天线通信系统生成权重的方法
US6885322B2 (en) * 2003-08-05 2005-04-26 Motorola, Inc. Apparatus and method for transmitter phase shift compensation
GB0508205D0 (en) * 2005-04-22 2005-06-01 Ttp Communications Ltd Assessing the performance of radio devices
US8862081B2 (en) * 2007-01-19 2014-10-14 Wi-Lan, Inc. Transceiver with receive path performance diversity and combiner with jammer detect feedback
US8570920B2 (en) * 2010-09-30 2013-10-29 Aviat U.S., Inc. Systems and methods for combining signals from multiple active wireless receivers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326294A (en) * 1979-02-13 1982-04-20 Nippon Telegraph & Telephone Public Corporation Space diversity reception system having compensation means of multipath effect
US4261056A (en) * 1979-07-16 1981-04-07 Bell Telephone Laboratories, Incorporated Equalizing signal combiner
US4354276A (en) * 1980-09-24 1982-10-12 Bell Telephone Laboratories, Incorporated Equalizing signal combiner

Also Published As

Publication number Publication date
BR9307233A (pt) 1999-10-13
DE69306970T2 (de) 1997-06-12
AU677242B2 (en) 1997-04-17
AU5176293A (en) 1994-05-09
NO951279D0 (no) 1995-04-03
FI951797A (fi) 1995-04-13
EP0664939B1 (en) 1996-12-27
WO1994009573A1 (en) 1994-04-28
EP0664939A1 (en) 1995-08-02
NO951279L (no) 1995-04-03
CN1087765A (zh) 1994-06-08
DE69306970D1 (de) 1997-02-06
US5668839A (en) 1997-09-16
ATE146920T1 (de) 1997-01-15
DK0664939T3 (da) 1997-03-10
ITMI922347A1 (it) 1994-04-14
ZA937508B (en) 1994-05-03
GR3022861T3 (en) 1997-06-30
FI951797A0 (fi) 1995-04-13
ITMI922347A0 (it) 1992-10-14
NO309630B1 (no) 2001-02-26
IT1255862B (it) 1995-11-17

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