HUP0500020A2 - Eljárás időben változó csatornán keresztül átvitt adatjel kiegyenlítésére és demodulálására - Google Patents

Eljárás időben változó csatornán keresztül átvitt adatjel kiegyenlítésére és demodulálására

Info

Publication number
HUP0500020A2
HUP0500020A2 HU0500020A HUP0500020A HUP0500020A2 HU P0500020 A2 HUP0500020 A2 HU P0500020A2 HU 0500020 A HU0500020 A HU 0500020A HU P0500020 A HUP0500020 A HU P0500020A HU P0500020 A2 HUP0500020 A2 HU P0500020A2
Authority
HU
Hungary
Prior art keywords
data signal
time
equalising
demodulating
transmitted via
Prior art date
Application number
HU0500020A
Other languages
English (en)
Inventor
Rainer Bott
Ulrich Sorger
Snjezana Gligorevic
Original Assignee
Rohde & Schwarz Gmbh & Co. Kg
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 Rohde & Schwarz Gmbh & Co. Kg filed Critical Rohde & Schwarz Gmbh & Co. Kg
Publication of HUP0500020A2 publication Critical patent/HUP0500020A2/hu
Publication of HU225835B1 publication Critical patent/HU225835B1/hu

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03286—Arrangements for operating in conjunction with other apparatus with channel-decoding circuitry

Abstract

Időben változó csatornán keresztül vevőhöz átvitt adatjelkiegyenlítése és demodulálása érdekében a vevőben a vett adatjelbőlszórást előidéző eszközök azon együtthatóit (csillapítás, késleltetés,Doppler-frekvencia) határozzák meg, amelyek a csatornában ajeltorzításokat okozzák. Majd ezek segítségével az adatjeletkiegyenlítik és ezt követően demodulálják. Ó
HU0500020A 2002-06-24 2003-05-14 Method for equalising and demodulating a data signal which is transmitted via a time-variant channel HU225835B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10228159A DE10228159A1 (de) 2002-06-24 2002-06-24 Verfahren zur Entzerrung und Demodulation eines über einen zeitveränderlichen Kanal übertragenen Datensignals
PCT/EP2003/005068 WO2004002099A1 (de) 2002-06-24 2003-05-14 Verfahren zur entzerrung und demodulation eines über einen zeitveränderlichen kanal übertragenen datensignals

Publications (2)

Publication Number Publication Date
HUP0500020A2 true HUP0500020A2 (hu) 2005-05-30
HU225835B1 HU225835B1 (en) 2007-10-29

Family

ID=29761352

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0500020A HU225835B1 (en) 2002-06-24 2003-05-14 Method for equalising and demodulating a data signal which is transmitted via a time-variant channel

Country Status (17)

Country Link
US (1) US20050220231A1 (hu)
EP (1) EP1516470B1 (hu)
KR (1) KR20050007432A (hu)
CN (1) CN1663212A (hu)
AT (1) ATE306166T1 (hu)
AU (1) AU2003232774B2 (hu)
BR (1) BR0307433A (hu)
CA (1) CA2474559A1 (hu)
DE (2) DE10228159A1 (hu)
DK (1) DK1516470T3 (hu)
ES (1) ES2249733T3 (hu)
HU (1) HU225835B1 (hu)
IL (1) IL165903A0 (hu)
MX (1) MXPA04010997A (hu)
NO (1) NO20050321L (hu)
WO (1) WO2004002099A1 (hu)
ZA (1) ZA200404576B (hu)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7596191B2 (en) * 2005-12-08 2009-09-29 Nokia Corporation Apparatus, method and computer program product providing a computationally efficient maximum likelihood joint synchronization and channel estimation algorithm
DE102006014064A1 (de) * 2005-12-23 2007-06-28 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Entzerrer zur Entzerrung einer über einen zeitveränderlichen Übertragungskanal empfangenen Datensymbol-Sequenz
DE102006029464A1 (de) * 2005-12-23 2007-06-28 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Entzerrer zur Detektion von über einen zeitveränderlichen Übertragungskanal übertragenen Datensymbol-Sequenzen aus einem diese enthaltenden Empfangssignal
CN105548711B (zh) * 2015-12-08 2018-06-12 北京航空航天大学 一种多频信息滤波递推解调方法
CN109274423B (zh) * 2018-10-22 2020-03-17 南京邮电大学 一种移动性可见光通信信道均衡方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997841A (en) * 1974-10-08 1976-12-14 International Standard Electric Corporation Time domain equalizer for broadband communication systems
US4959656A (en) * 1989-10-31 1990-09-25 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Efficient detection and signal parameter estimation with application to high dynamic GPS receiver
US5859874A (en) * 1994-05-09 1999-01-12 Globalstar L.P. Multipath communication system optimizer
US5729558A (en) * 1995-03-08 1998-03-17 Lucent Technologies Inc. Method of compensating for Doppler error in a wireless communications system, such as for GSM and IS54
US6134277A (en) * 1997-09-04 2000-10-17 Ericsson Inc System and method for self-adaptive maximum likelihood sequence detection
US6411649B1 (en) * 1998-10-20 2002-06-25 Ericsson Inc. Adaptive channel tracking using pilot sequences
JP3739655B2 (ja) * 1998-11-24 2006-01-25 インフィネオン テクノロジース アクチエンゲゼルシャフト 離散的多周波変調により生成された信号における妨害の補償方法および該方法を実施するための回路装置
US6320919B1 (en) * 1998-11-30 2001-11-20 Ericsson Inc. Adaptive channel characterization using decoded symbols
FR2787199B1 (fr) * 1998-12-11 2001-03-09 Thomson Csf Procede de detection, notamment de petites cibles marines
US6757339B1 (en) * 2000-07-24 2004-06-29 Nortel Networks Limited Minimum mean-squared error block-decision feedback sequence estimation in digital communication systems
US6983125B2 (en) * 2001-09-25 2006-01-03 Qualcomm Incorporated Method and apparatus for varying the length of an adaptive equalizer based on doppler frequency

Also Published As

Publication number Publication date
CN1663212A (zh) 2005-08-31
WO2004002099A1 (de) 2003-12-31
BR0307433A (pt) 2004-12-28
EP1516470B1 (de) 2005-10-05
MXPA04010997A (es) 2005-05-27
AU2003232774B2 (en) 2007-05-10
DE50301325D1 (de) 2005-11-10
ZA200404576B (en) 2005-06-09
ES2249733T3 (es) 2006-04-01
IL165903A0 (en) 2006-01-15
CA2474559A1 (en) 2003-12-31
AU2003232774A1 (en) 2004-01-06
KR20050007432A (ko) 2005-01-18
EP1516470A1 (de) 2005-03-23
HU225835B1 (en) 2007-10-29
US20050220231A1 (en) 2005-10-06
NO20050321L (no) 2005-01-20
DK1516470T3 (da) 2006-02-20
DE10228159A1 (de) 2004-01-22
ATE306166T1 (de) 2005-10-15

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