CN100556011C - 自适应滤波器 - Google Patents
自适应滤波器 Download PDFInfo
- Publication number
- CN100556011C CN100556011C CNB2004800272585A CN200480027258A CN100556011C CN 100556011 C CN100556011 C CN 100556011C CN B2004800272585 A CNB2004800272585 A CN B2004800272585A CN 200480027258 A CN200480027258 A CN 200480027258A CN 100556011 C CN100556011 C CN 100556011C
- Authority
- CN
- China
- Prior art keywords
- filter
- signal
- module
- value
- frequency
- 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.)
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
-
- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/71—Interference-related aspects the interference being narrowband interference
-
- 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
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- 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
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
Abstract
Description
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03103519.9 | 2003-09-23 | ||
EP03103519 | 2003-09-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1856974A CN1856974A (zh) | 2006-11-01 |
CN100556011C true CN100556011C (zh) | 2009-10-28 |
Family
ID=34354575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004800272585A Active CN100556011C (zh) | 2003-09-23 | 2004-09-14 | 自适应滤波器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7602845B2 (zh) |
EP (1) | EP1668854A1 (zh) |
JP (1) | JP4425919B2 (zh) |
KR (1) | KR20060087575A (zh) |
CN (1) | CN100556011C (zh) |
TW (1) | TW200524306A (zh) |
WO (1) | WO2005029797A1 (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7697600B2 (en) * | 2005-07-14 | 2010-04-13 | Altera Corporation | Programmable receiver equalization circuitry and methods |
EP2036254B1 (en) | 2006-06-09 | 2011-08-10 | Telefonaktiebolaget LM Ericsson (publ) | Data transfer path evaluation using filtering and change detection |
KR100790163B1 (ko) * | 2006-08-08 | 2008-01-02 | 삼성전자주식회사 | 이동통신 단말기의 이동속도에 따라 iir 필터 계수를 변경하는 채널 추정장치 및 계수 변경 방법 |
KR100773294B1 (ko) * | 2006-08-28 | 2007-11-05 | 삼성전자주식회사 | 광대역 무선접속 시스템에서 채널 추정 장치 및 방법 |
CA2571385C (en) * | 2006-12-18 | 2015-11-24 | University Of Waterloo | Adaptive channel prediction system and method |
FR2945178B1 (fr) * | 2009-04-30 | 2012-09-28 | St Ericsson Sa | Gestion d'etat d'un terminal dans un reseau de telecommunication |
JP2012044414A (ja) * | 2010-08-18 | 2012-03-01 | Lapis Semiconductor Co Ltd | 相関器及びそれを含む復調装置 |
US9277467B2 (en) * | 2011-12-08 | 2016-03-01 | Samsung Electronics Co., Ltd. | Communication system with adaptive handover controller and method of operation thereof |
JP5823850B2 (ja) * | 2011-12-21 | 2015-11-25 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 通信連絡システムおよび磁気共鳴装置 |
CN110584646A (zh) * | 2019-08-20 | 2019-12-20 | 广东工业大学 | 一种自适应二阶滤波心电信号去噪预处理装置及方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8308843D0 (en) * | 1983-03-30 | 1983-05-11 | Clark A P | Apparatus for adjusting receivers of data transmission channels |
US5272656A (en) * | 1990-09-21 | 1993-12-21 | Cambridge Signal Technologies, Inc. | System and method of producing adaptive FIR digital filter with non-linear frequency resolution |
US5241688A (en) * | 1990-12-17 | 1993-08-31 | Motorola, Inc. | Frequency and time slot synchronizaton using adaptive filtering |
US5285480A (en) * | 1991-09-03 | 1994-02-08 | General Electric Company | Adaptive MLSE-VA receiver for digital cellular radio |
CA2122473C (en) * | 1991-10-31 | 2001-01-23 | Lee Anne Beausang | Nuclear matrix protein fluid assay |
SE470119B (sv) * | 1992-04-09 | 1993-11-08 | Ericsson Telefon Ab L M | Metod för att undvika självsvängning i en fyrtrådsslinga i samband med ekosläckning |
US5513221A (en) * | 1994-05-19 | 1996-04-30 | Hughes Aircraft Company | Doppler bandwidth dependent estimation of a communications channel |
US5999954A (en) * | 1997-02-28 | 1999-12-07 | Massachusetts Institute Of Technology | Low-power digital filtering utilizing adaptive approximate filtering |
US6266367B1 (en) * | 1998-05-28 | 2001-07-24 | 3Com Corporation | Combined echo canceller and time domain equalizer |
KR100277697B1 (ko) * | 1998-12-02 | 2001-01-15 | 정선종 | 제약조건을 갖는 평균평방 오차 최소화 방법을 이용한 적응형수신 장치 |
KR100377969B1 (ko) * | 2000-07-10 | 2003-03-29 | 이용환 | 적응 채널 추정 장치를 이용한 직접시퀀스 확산대역시스템 수신 장치 |
FR2814011B1 (fr) * | 2000-09-14 | 2003-10-24 | France Telecom | Procede d'estimation optimale d'un canal de propagation reposant uniquement sur les symboles pilotes et estimateur correspondant |
US7443826B1 (en) * | 2000-10-04 | 2008-10-28 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for automatic frequency control in a CDMA receiver |
US6771690B2 (en) * | 2000-12-29 | 2004-08-03 | Nokia Corporation | Method and apparatus for providing blind adaptive estimation and reception |
US7230975B2 (en) * | 2001-08-07 | 2007-06-12 | Qualcomm Incorporated | Adaptive pilot filter for a wireless communication system |
US8107901B2 (en) * | 2001-08-20 | 2012-01-31 | Motorola Solutions, Inc. | Feedback loop with adjustable bandwidth |
US20030185292A1 (en) * | 2002-04-02 | 2003-10-02 | Fernandez-Corbaton Ivan Jesus | Adaptive filtering with DC bias compensation |
KR100630112B1 (ko) * | 2002-07-09 | 2006-09-27 | 삼성전자주식회사 | 이동통신시스템의 적응형 채널 추정장치 및 방법 |
US7454209B2 (en) * | 2002-09-05 | 2008-11-18 | Qualcomm Incorporated | Adapting operation of a communication filter based on mobile unit velocity |
US7369603B2 (en) * | 2003-05-28 | 2008-05-06 | Intel Corporation | Compensating for spectral attenuation |
US7428262B2 (en) * | 2003-08-13 | 2008-09-23 | Motorola, Inc. | Channel estimation in a rake receiver of a CDMA communication system |
-
2004
- 2004-09-14 JP JP2006526781A patent/JP4425919B2/ja active Active
- 2004-09-14 KR KR1020067005680A patent/KR20060087575A/ko not_active Application Discontinuation
- 2004-09-14 EP EP04769996A patent/EP1668854A1/en not_active Withdrawn
- 2004-09-14 US US10/572,474 patent/US7602845B2/en active Active
- 2004-09-14 CN CNB2004800272585A patent/CN100556011C/zh active Active
- 2004-09-14 WO PCT/IB2004/051749 patent/WO2005029797A1/en active Application Filing
- 2004-09-20 TW TW093128466A patent/TW200524306A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
CN1856974A (zh) | 2006-11-01 |
WO2005029797A1 (en) | 2005-03-31 |
KR20060087575A (ko) | 2006-08-02 |
TW200524306A (en) | 2005-07-16 |
EP1668854A1 (en) | 2006-06-14 |
JP2007506341A (ja) | 2007-03-15 |
US7602845B2 (en) | 2009-10-13 |
JP4425919B2 (ja) | 2010-03-03 |
US20070081584A1 (en) | 2007-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: NXP CO., LTD. Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V. Effective date: 20090410 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20090410 Address after: Holland Ian Deho Finn Applicant after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Applicant before: Koninklijke Philips Electronics N.V. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: KALAI HANXILE CO., LTD. Free format text: FORMER OWNER: KONINKL PHILIPS ELECTRONICS NV Effective date: 20120104 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20120104 Address after: American Delaware Patentee after: NXP BV Address before: Holland Ian Deho Finn Patentee before: Koninkl Philips Electronics NV |