ES2051896T3 - Distorsionador digital. - Google Patents

Distorsionador digital.

Info

Publication number
ES2051896T3
ES2051896T3 ES89100802T ES89100802T ES2051896T3 ES 2051896 T3 ES2051896 T3 ES 2051896T3 ES 89100802 T ES89100802 T ES 89100802T ES 89100802 T ES89100802 T ES 89100802T ES 2051896 T3 ES2051896 T3 ES 2051896T3
Authority
ES
Spain
Prior art keywords
distortion
distorted
data
signal location
values
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
ES89100802T
Other languages
English (en)
Inventor
Josef A Dr-Ing Nossek
Tobias Dipl-Ing Noll
Hermann Dr-Ing Ens
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Application granted granted Critical
Publication of ES2051896T3 publication Critical patent/ES2051896T3/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
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Gyroscopes (AREA)
  • Semiconductor Lasers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

EL INVENTO SE REFIERE A UN DISTORSIONADOR DIGITAL (PRE- O POST-DISTORSIONADOR) PARA INSTALACIONES DE TRANSMISION O RECEPCION DE UN SISTEMA DE TRANSMISION DE NOTICIAS CON MODULACION DE AMPLITUD COMPLEJA. UN DISTORSIONADOR DE ESTE TIPO, TIENE QUE PERMITIR PRINCIPALMENTE COMO PREDISTORSIONADOR UTILIZANDO UN FILTRO DE FORMACION DE IMPULSOS DIGITAL COLOCADO DELANTE DE ESTE UNA COMPENSACION EFECTIVA TOTALMENTE DE LA NO ALINEACION DEL AMPLIFICADOR DE TRANSMISION Y DE OTROS COMPONENTES Y AL MISMO TIEMPO DEBE SER REALIZABLE A BAJO COSTO. EL INVENTO PREVEE PARA ESTO UNA INSTALACION (6) PARA CAMBIAR LOS DATOS A TRANSMITIR AL PUNTO DE LA SEÑAL I. Y Q. DE AMBOS CANALES DE COORDINADAS CARTESIANAS EN POLARES A. Y 9, ASI COMO, UN ALIMENTADOR (7) AL QUE SOLO SE LE VAN A INTRODUCIR DE ESTOS DATOS LA PARTE DE LA CUANTIA A. Y QUE TODOS LOS VALORES DE DISTORSIONADO CORRESPONDIENTES A LA CUANTIA REMITIDA (DIFERENCIA DEL PUNTO DE SEÑAL DEBIDO Y EL PUNTO DE SEÑAL DISTORSIONADA) CONTENIDAS SEGUN LA CUANTIA YLA FASE. ESTAS SE SUMAN COMO VALORES DE CORRECCION A. Y . DEL PUNTO DE SEÑAL EN COORDINADAS POLARES. POR ESTO SE CONECTA LA INSTALACION (10) PARA CAMBIAR ESTOS VALORES PRE- O POST-DISTORSIONADOS POR LA CUANTIA Y LA FASE DEL PUNTO DE LA SEÑAL DISTORSIONADA EN COORDINADAS POLARES EN LOS DATOS DISTORSIONADOS PARA EL CANAL I- Y Q- EN COORDENADAS CARTESIANAS CORRESPONDIENTES.
ES89100802T 1989-01-18 1989-01-18 Distorsionador digital. Expired - Lifetime ES2051896T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89100802A EP0378719B1 (de) 1989-01-18 1989-01-18 Digitaler Verzerrer

Publications (1)

Publication Number Publication Date
ES2051896T3 true ES2051896T3 (es) 1994-07-01

Family

ID=8200870

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89100802T Expired - Lifetime ES2051896T3 (es) 1989-01-18 1989-01-18 Distorsionador digital.

Country Status (7)

Country Link
EP (1) EP0378719B1 (es)
AT (1) ATE105124T1 (es)
AU (1) AU610449B2 (es)
BR (1) BR9000175A (es)
DE (1) DE58907579D1 (es)
ES (1) ES2051896T3 (es)
MX (1) MX172581B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465494B (sv) * 1990-01-22 1991-09-16 Ericsson Telefon Ab L M Foerfarande att kompensera foer olineariteter i en slutfoerstaerkare
JPH05503408A (ja) * 1990-10-24 1993-06-03 モトローラ・インコーポレイテッド トランシーバの送信機内で信号を可変する装置と方法
FR2707127A1 (fr) * 1993-06-29 1995-01-06 Philips Laboratoire Electroniq Système de transmission numérique à prédisposition.
AUPN455695A0 (en) * 1995-08-01 1995-08-24 Canon Kabushiki Kaisha Qam spread spectrum demodulation system
AU684688B2 (en) * 1995-08-01 1997-12-18 Canon Kabushiki Kaisha QAM spread spectrum demodulation system
JP4015363B2 (ja) * 1998-01-21 2007-11-28 ノキア コーポレイション 構成部品による歪を補償するためのパルス成形方法
GB2358974B (en) 2000-02-01 2002-07-17 Wireless Systems Int Ltd Distortion reduction
US7123659B2 (en) 2000-03-23 2006-10-17 Matsushita Electric Industrial Co., Ltd. Digital reception apparatus for removing distortion from received signals
DE10136071A1 (de) * 2001-07-25 2003-02-13 Infineon Technologies Ag Verfahren und Vorrichtung zur Kompensation eines Phasenfehlers eines Empfangs- und/oder Sendesystems mit I/Q-Schnittstelle
ATE438248T1 (de) * 2007-03-28 2009-08-15 Imec Inter Uni Micro Electr Verfahren zur kalibrierung nicht idealer sende- /empfangsanordnungen
DE102007037105A1 (de) * 2007-05-09 2008-11-13 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Detektion von simultaner Doppelaussendung von AM-Signalen
WO2009056627A2 (en) 2007-10-31 2009-05-07 Interuniversitair Microelektronica Centrum Vzw A method for determining and compensating transceiver non-idealities using complementary golay sequence pairs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1145719B (it) * 1981-11-12 1986-11-05 Cselt Centro Studi Lab Telecom Circuito di recupero della partante di un segnale modulato in ampiezza e fase da segnali numerici
JPS59112748A (ja) * 1982-12-06 1984-06-29 Fujitsu Ltd デ−タ送受信システム
FR2542536B1 (fr) * 1983-03-07 1985-07-12 Trt Telecom Radio Electr Dispositif de recuperation de la porteuse d'un signal d'entree module par sauts d'amplitude et par sauts de phase
US4700151A (en) * 1985-03-20 1987-10-13 Nec Corporation Modulation system capable of improving a transmission system
DE3766614D1 (de) * 1987-03-10 1991-01-17 Ant Nachrichtentech Verfahren zum gewinnen eines phasendifferenzsignals.

Also Published As

Publication number Publication date
AU4852990A (en) 1990-07-26
BR9000175A (pt) 1990-10-23
EP0378719A1 (de) 1990-07-25
ATE105124T1 (de) 1994-05-15
AU610449B2 (en) 1991-05-16
MX172581B (es) 1994-01-03
EP0378719B1 (de) 1994-04-27
DE58907579D1 (de) 1994-06-01

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