DE102005054239A1 - Adaptive DC-Offset-Kompensation in einem Funkempfänger - Google Patents

Adaptive DC-Offset-Kompensation in einem Funkempfänger Download PDF

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Publication number
DE102005054239A1
DE102005054239A1 DE200510054239 DE102005054239A DE102005054239A1 DE 102005054239 A1 DE102005054239 A1 DE 102005054239A1 DE 200510054239 DE200510054239 DE 200510054239 DE 102005054239 A DE102005054239 A DE 102005054239A DE 102005054239 A1 DE102005054239 A1 DE 102005054239A1
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DE
Germany
Prior art keywords
compensation value
compensation
adapting
offset
signal path
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.)
Withdrawn
Application number
DE200510054239
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English (en)
Inventor
Christian Bacher
Stefan Eibl
Joern Rubach
Josef Zipper
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.)
Infineon Technologies AG
Original Assignee
Infineon Technologies AG
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 Infineon Technologies AG filed Critical Infineon Technologies AG
Priority to DE200510054239 priority Critical patent/DE102005054239A1/de
Publication of DE102005054239A1 publication Critical patent/DE102005054239A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/063—Setting decision thresholds using feedback techniques only

Abstract

Die Erfindung betrifft eine Vorrichtung (1) zur Verarbeitung von empfangenen Signalen in einem Signalpfad, mit einem in den Signalpfad geschalteten Mischer (5) zum Heruntermischen der empfangenen Signale, einer Abgleicheinheit (11) zur Bestimmung eines in dem Signalpfad hinter dem Ausgang des Mischers (5) auftretenden DC-Offsets und zum Einspeisen eines anhand des DC-Offsets ermittelten Kompensationswerts in den Signalpfad zur Kompensation des DC-Offsets und einer Anpasseinheit zum Anpassen des durch einen Abgleich ermittelten Kompensationswerts an einen sich ändernden DC-Offset.
DE200510054239 2005-11-14 2005-11-14 Adaptive DC-Offset-Kompensation in einem Funkempfänger Withdrawn DE102005054239A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200510054239 DE102005054239A1 (de) 2005-11-14 2005-11-14 Adaptive DC-Offset-Kompensation in einem Funkempfänger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510054239 DE102005054239A1 (de) 2005-11-14 2005-11-14 Adaptive DC-Offset-Kompensation in einem Funkempfänger

Publications (1)

Publication Number Publication Date
DE102005054239A1 true DE102005054239A1 (de) 2007-05-16

Family

ID=37982685

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200510054239 Withdrawn DE102005054239A1 (de) 2005-11-14 2005-11-14 Adaptive DC-Offset-Kompensation in einem Funkempfänger

Country Status (1)

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DE (1) DE102005054239A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015206286B4 (de) 2015-04-09 2019-05-29 Continental Automotive Gmbh Verfahren und Vorrichtung zum Betreiben eines Injektors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964557A1 (de) * 1998-06-12 1999-12-15 Lucent Technologies Inc. Empfänger mit Gleichstromoffsetkompensation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964557A1 (de) * 1998-06-12 1999-12-15 Lucent Technologies Inc. Empfänger mit Gleichstromoffsetkompensation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015206286B4 (de) 2015-04-09 2019-05-29 Continental Automotive Gmbh Verfahren und Vorrichtung zum Betreiben eines Injektors

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