ES2106941T3 - Procedimiento y dispositivo para la correccion de errores de amplitud y de fase en sistemas receptores de mezcla directa. - Google Patents

Procedimiento y dispositivo para la correccion de errores de amplitud y de fase en sistemas receptores de mezcla directa.

Info

Publication number
ES2106941T3
ES2106941T3 ES93118370T ES93118370T ES2106941T3 ES 2106941 T3 ES2106941 T3 ES 2106941T3 ES 93118370 T ES93118370 T ES 93118370T ES 93118370 T ES93118370 T ES 93118370T ES 2106941 T3 ES2106941 T3 ES 2106941T3
Authority
ES
Spain
Prior art keywords
correction
amplitude
signal
procedure
phase errors
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
ES93118370T
Other languages
English (en)
Inventor
Wolfram Kluge
Frieder Jehring
Frank Michael Krause
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.)
Hagenuk Telecom GmbH
Original Assignee
Hagenuk Telecom GmbH
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 Hagenuk Telecom GmbH filed Critical Hagenuk Telecom GmbH
Application granted granted Critical
Publication of ES2106941T3 publication Critical patent/ES2106941T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03D3/009—Compensating quadrature phase or amplitude imbalances
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0025—Gain control circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0029—Loop circuits with controlled phase shift
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0047—Offset of DC voltage or frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0054—Digital filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Radio Transmission System (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCESO Y UN DISPOSITIVO PARA LA CORRECCION DE SEÑALES DE CORRECCION EN SISTEMAS DE RECEPCION DE MEZCLA DIRECTA PARA LA COMPENSACION DE FALLOS DE AMPLITUD Y DE FASE. LA SEÑAL DE ALTA FRECUENCIA RECIBIDA SE MEZCLA EN DOS PROCESOS DE MEZCLADO CON DOS SEÑALES DE FASE DESPLAZADA ALREDEDOR DE 90 ZF (I, Q) GENERADAS SE MULTIPLICA UNA DE ELLAS CON UN PRIMER FACTOR DE CORRECCION PARA LA FORMACION DE UNA SEÑAL CORREGIDA EN AMPLITUD. SE FORMA UNA SEÑAL DE SUMA Y UNA SEÑAL DE DIFERENCIA ENTRE LA SEÑAL ZF NO CORREGIDA Y CORREGIDA EN AMPLITUD Y LA SEÑAL DE SUMA O DIFERENCIA SE MULTIPLICA PARA LA FORMACION DE SEÑALES ZF DE FASE CORREGIDA CON UN SEGUNDO FACTOR DE CORRECCION.
ES93118370T 1992-11-14 1993-11-12 Procedimiento y dispositivo para la correccion de errores de amplitud y de fase en sistemas receptores de mezcla directa. Expired - Lifetime ES2106941T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4238543A DE4238543C1 (de) 1992-11-14 1992-11-14 Verfahren und Vorrichtung zur Korrektur der Phasen- und Amplitudenfehler bei direktmischenden Empfangseinrichtungen

Publications (1)

Publication Number Publication Date
ES2106941T3 true ES2106941T3 (es) 1997-11-16

Family

ID=6472929

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93118370T Expired - Lifetime ES2106941T3 (es) 1992-11-14 1993-11-12 Procedimiento y dispositivo para la correccion de errores de amplitud y de fase en sistemas receptores de mezcla directa.

Country Status (4)

Country Link
EP (1) EP0602394B1 (es)
AT (1) ATE156635T1 (es)
DE (2) DE4238543C1 (es)
ES (1) ES2106941T3 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616368C1 (de) * 1996-04-24 1997-12-11 Hagenuk Marinekommunikation Gm Verfahren und Vorrichtung zur Demodulation eines SSB-Signals nach der Phasenmethode
US5937341A (en) 1996-09-13 1999-08-10 University Of Washington Simplified high frequency tuner and tuning method
GB2323502B (en) * 1997-03-18 2002-03-27 Ericsson Telefon Ab L M Radio receiver
US7088765B1 (en) 2000-03-15 2006-08-08 Ndsu Research Foundation Vector calibration system
EP1298791A1 (en) * 2001-09-26 2003-04-02 Sony International (Europe) GmbH Direct-conversion receiver using quadrature error correction
EP1450238B1 (en) 2003-02-21 2005-11-30 Alcatel Circuit for programmable stepless clock shifting
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166324A (en) * 1984-10-25 1986-04-30 Stc Plc A multi-mode radio transceiver
EP0343273B1 (de) * 1988-05-27 1994-04-27 Deutsche ITT Industries GmbH Korrekturschaltung für ein digitales Quadratur-Signalpaar
CH676404A5 (es) * 1988-11-22 1991-01-15 Ascom Radiocom Ag
CH676405A5 (es) * 1988-11-22 1991-01-15 Ascom Radiocom Ag

Also Published As

Publication number Publication date
EP0602394A2 (de) 1994-06-22
ATE156635T1 (de) 1997-08-15
EP0602394A3 (de) 1995-02-08
DE4238543C1 (de) 1994-05-05
DE59307069D1 (de) 1997-09-11
EP0602394B1 (de) 1997-08-06

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