ES2095300T3 - Ecualizador de viterbi con numero variable de estados. - Google Patents
Ecualizador de viterbi con numero variable de estados.Info
- Publication number
- ES2095300T3 ES2095300T3 ES91309712T ES91309712T ES2095300T3 ES 2095300 T3 ES2095300 T3 ES 2095300T3 ES 91309712 T ES91309712 T ES 91309712T ES 91309712 T ES91309712 T ES 91309712T ES 2095300 T3 ES2095300 T3 ES 2095300T3
- Authority
- ES
- Spain
- Prior art keywords
- states
- variable number
- viterbi equalizer
- multipath interference
- viterbi algorithm
- 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
Links
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
- H04L25/03—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
- H04L25/0212—Channel estimation of impulse response
- H04L25/0216—Channel estimation of impulse response with estimation of channel length
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Error Detection And Correction (AREA)
- Dc Digital Transmission (AREA)
- Circuits Of Receivers In General (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Photoreceptors In Electrophotography (AREA)
- Inorganic Insulating Materials (AREA)
- Noise Elimination (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
SE PRESENTA UN ECUALIZADOR DEL TIPO DE LOS QUE USA UN ALGORITMO "VITERBI" PARA EL PROCESAMIENTO DE SEÑALES PARA REDUCIR LOS EFECTOS DE LA INTERFERENCIA MULTI LINEA, EL ECUALIZADOR COMPRENDE MEDIOS PARA MEDIR LA DURACION DE LA INTERFERENCIA MULTI LINEA, MEDIOS PROCESADORES DE SEÑAL QUE FUNCIONAN DE ACUERDO CON EL ALGORITMO "VITERBI" Y QUE TIENE UN NUMERO SELECCIONADO DE ESTADOS, Y MEDIOS PARA ADAPTAR EL NUMERO DE ESTADOS DEPENDIENDO DE LA DURACION DE LA INTERFERENCIA MULTI LINEA A MEDIDA QUE SE MIDE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9101570A GB2252221B (en) | 1991-01-24 | 1991-01-24 | Improvements in or relating to equalisers for digital radio communication systems |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2095300T3 true ES2095300T3 (es) | 1997-02-16 |
Family
ID=10688951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91309712T Expired - Lifetime ES2095300T3 (es) | 1991-01-24 | 1991-10-21 | Ecualizador de viterbi con numero variable de estados. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0496152B1 (es) |
AT (1) | ATE146922T1 (es) |
DE (1) | DE69123830T2 (es) |
DK (1) | DK0496152T3 (es) |
ES (1) | ES2095300T3 (es) |
GB (1) | GB2252221B (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2271489B (en) * | 1992-10-07 | 1996-04-24 | Roke Manor Research | Processing of digital communication signals |
FR2696604B1 (fr) * | 1992-10-07 | 1994-11-04 | Alcatel Radiotelephone | Dispositif d'estimation d'un canal de transmission. |
GB2271916B (en) * | 1992-10-23 | 1996-05-22 | Roke Manor Research | Improvements in or relating to digital radio communication systems |
JPH06140951A (ja) * | 1992-10-27 | 1994-05-20 | Sony Corp | ビタビ等化器 |
JP2669350B2 (ja) * | 1994-07-07 | 1997-10-27 | 日本電気株式会社 | 状態数可変最尤系列推定器 |
US5905742A (en) * | 1995-12-27 | 1999-05-18 | Ericsson Inc. | Method and apparauts for symbol decoding |
US6185259B1 (en) * | 1996-06-12 | 2001-02-06 | Ericsson Inc. | Transmitter/receiver for GMSK and offset-QAM |
JP3266052B2 (ja) * | 1997-06-06 | 2002-03-18 | 日本電気株式会社 | データ受信装置 |
EP0954142A1 (en) * | 1998-04-28 | 1999-11-03 | Lucent Technologies Inc. | Channel estimation using a sliding window technique |
US6373888B1 (en) | 1998-10-09 | 2002-04-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Estimated channel with variable number of taps |
US6477200B1 (en) | 1998-11-09 | 2002-11-05 | Broadcom Corporation | Multi-pair gigabit ethernet transceiver |
DE69922405T2 (de) * | 1998-11-09 | 2006-01-12 | Broadcom Corp., Irvine | Verfahren und system zur entscheidungrückgekoppelten dekodierung |
US6542560B1 (en) | 1999-04-23 | 2003-04-01 | Lucent Technologies Inc. | Method of channel estimation and compensation based thereon |
DE60143680D1 (de) * | 2000-11-01 | 2011-01-27 | Ntt Docomo Inc | Vorrichtung und Verfahren zur adaptiven Entzerrung |
US6714607B2 (en) * | 2001-12-20 | 2004-03-30 | Sbc Technology Resources, Inc. | Joint demodulation using a viterbi equalizer having an adaptive total number of states |
EP1401164A1 (en) * | 2002-09-19 | 2004-03-24 | Telefonaktiebolaget Lm Ericsson | Bandwith estimation and adaptive filtering |
KR100802619B1 (ko) | 2002-11-07 | 2008-02-13 | 엘지전자 주식회사 | 무선 링크 제어 프로토콜에 따르는 수신기에서의 알엘씨데이터 수신 윈도우 처리 방법 |
DE10326283A1 (de) * | 2003-06-11 | 2005-01-13 | Siemens Ag | Verfahren zur Bestimmung von Kanalkoeffizienten eines Datenübertragungskanals |
-
1991
- 1991-01-24 GB GB9101570A patent/GB2252221B/en not_active Expired - Lifetime
- 1991-10-21 ES ES91309712T patent/ES2095300T3/es not_active Expired - Lifetime
- 1991-10-21 DE DE69123830T patent/DE69123830T2/de not_active Expired - Lifetime
- 1991-10-21 DK DK91309712.7T patent/DK0496152T3/da active
- 1991-10-21 AT AT91309712T patent/ATE146922T1/de not_active IP Right Cessation
- 1991-10-21 EP EP91309712A patent/EP0496152B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB9101570D0 (en) | 1991-03-06 |
DK0496152T3 (da) | 1997-06-09 |
DE69123830D1 (de) | 1997-02-06 |
GB2252221B (en) | 1995-01-18 |
DE69123830T2 (de) | 1997-06-12 |
EP0496152A2 (en) | 1992-07-29 |
GB2252221A (en) | 1992-07-29 |
EP0496152A3 (en) | 1993-05-05 |
ATE146922T1 (de) | 1997-01-15 |
EP0496152B1 (en) | 1996-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Grant refused |
Effective date: 19950426 |
|
FG2A | Definitive protection |
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