CA2055831A1 - Filtre adaptatif et methode servant a empecher la tendance du filtre adaptatif a la divergence - Google Patents
Filtre adaptatif et methode servant a empecher la tendance du filtre adaptatif a la divergenceInfo
- Publication number
- CA2055831A1 CA2055831A1 CA2055831A CA2055831A CA2055831A1 CA 2055831 A1 CA2055831 A1 CA 2055831A1 CA 2055831 A CA2055831 A CA 2055831A CA 2055831 A CA2055831 A CA 2055831A CA 2055831 A1 CA2055831 A1 CA 2055831A1
- Authority
- CA
- Canada
- Prior art keywords
- adaptive filter
- tap gain
- recursively
- divergent
- corrected 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.)
- Granted
Links
- 230000003044 adaptive effect Effects 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 3
- 238000012937 correction Methods 0.000 abstract 5
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
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
-
- 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
- H04L2025/03592—Adaptation methods
- H04L2025/03598—Algorithms
- H04L2025/03611—Iterative algorithms
- H04L2025/03617—Time recursive algorithms
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2312871A JPH04185011A (ja) | 1990-11-20 | 1990-11-20 | 適応フィルタの発散防止方法及び装置 |
JP312871/90 | 1990-11-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2055831A1 true CA2055831A1 (fr) | 1992-05-21 |
CA2055831C CA2055831C (fr) | 1995-05-30 |
Family
ID=18034443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002055831A Expired - Fee Related CA2055831C (fr) | 1990-11-20 | 1991-11-19 | Filtre adaptatif et methode servant a empecher la tendance du filtre adaptatif a la divergence |
Country Status (6)
Country | Link |
---|---|
US (1) | US5260896A (fr) |
EP (1) | EP0487029B1 (fr) |
JP (1) | JPH04185011A (fr) |
AU (1) | AU639381B2 (fr) |
CA (1) | CA2055831C (fr) |
DE (1) | DE69124573T2 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2074782C (fr) * | 1991-07-30 | 1997-10-07 | Akihiko Sugiyama | Methode et dispositif pour identifier un systeme inconnu au moyen d'un filtre adaptatif |
US5590241A (en) * | 1993-04-30 | 1996-12-31 | Motorola Inc. | Speech processing system and method for enhancing a speech signal in a noisy environment |
EP0654925B1 (fr) * | 1993-11-23 | 2001-05-16 | Ascom Systec AG | Procédé et système pour poursuivre la réponse impulsionelle d'un canal sélectif en fréquence |
US5627896A (en) * | 1994-06-18 | 1997-05-06 | Lord Corporation | Active control of noise and vibration |
JPH08312714A (ja) * | 1995-05-23 | 1996-11-26 | Nissan Motor Co Ltd | 制御型防振支持装置 |
US6314441B1 (en) * | 1997-04-30 | 2001-11-06 | Agere Systems Inc | Robust method for providing tap leakage in adaptive equalizer systems |
US6087341A (en) * | 1998-02-12 | 2000-07-11 | The Board Of Trustees Of The Leland Standford Junior University | Introduction of nucleic acid into skin cells by topical application |
US6745218B1 (en) * | 1999-03-16 | 2004-06-01 | Matsushita Electric Industrial Co., Ltd. | Adaptive digital filter |
EP1909393A1 (fr) * | 2005-07-15 | 2008-04-09 | NEC Corporation | Filtre numerique adaptatif, procede de traitement de signaux, recepteur a modulation de frequence, et programme |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4237554A (en) * | 1979-03-01 | 1980-12-02 | Bell Telephone Laboratories, Incorporated | Coefficient tap leakage for fractionally-spaced equalizers |
US4243959A (en) * | 1979-06-21 | 1981-01-06 | Bell Telephone Laboratories, Incorporated | Adaptive filter with tap coefficient leakage |
US4468641A (en) * | 1982-06-28 | 1984-08-28 | At&T Bell Laboratories | Adaptive filter update normalization |
US4467441A (en) * | 1982-10-08 | 1984-08-21 | At&T Bell Laboratories | Adaptive filter including controlled tap coefficient leakage |
-
1990
- 1990-11-20 JP JP2312871A patent/JPH04185011A/ja active Pending
-
1991
- 1991-11-19 US US07/794,421 patent/US5260896A/en not_active Expired - Fee Related
- 1991-11-19 DE DE69124573T patent/DE69124573T2/de not_active Expired - Fee Related
- 1991-11-19 CA CA002055831A patent/CA2055831C/fr not_active Expired - Fee Related
- 1991-11-19 EP EP91119724A patent/EP0487029B1/fr not_active Expired - Lifetime
- 1991-11-19 AU AU88005/91A patent/AU639381B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
US5260896A (en) | 1993-11-09 |
DE69124573T2 (de) | 1997-06-05 |
EP0487029B1 (fr) | 1997-02-05 |
CA2055831C (fr) | 1995-05-30 |
AU639381B2 (en) | 1993-07-22 |
DE69124573D1 (de) | 1997-03-20 |
AU8800591A (en) | 1992-05-21 |
JPH04185011A (ja) | 1992-07-01 |
EP0487029A1 (fr) | 1992-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |