BRPI0511061A - método para operar um equalizador de realimentação de decisão, e, equalizador de realimentação de decisão - Google Patents
método para operar um equalizador de realimentação de decisão, e, equalizador de realimentação de decisãoInfo
- Publication number
- BRPI0511061A BRPI0511061A BRPI0511061-0A BRPI0511061A BRPI0511061A BR PI0511061 A BRPI0511061 A BR PI0511061A BR PI0511061 A BRPI0511061 A BR PI0511061A BR PI0511061 A BRPI0511061 A BR PI0511061A
- Authority
- BR
- Brazil
- Prior art keywords
- decision feedback
- feedback equalizer
- symbol decisions
- equalizer
- output
- Prior art date
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
-
- 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
- H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/12—Channels characterised by the type of signal the signals being represented by different phase modulations of a single carrier
-
- 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
- H04L2025/03382—Single of vestigal sideband
-
- 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
- H04L2025/03471—Tapped delay lines
- H04L2025/03484—Tapped delay lines time-recursive
- H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Dc Digital Transmission (AREA)
Abstract
MéTODO PARA OPERAR UM EQUALIZADOR DE REALIMENTAçãO DE DECISãO, E, EQUALIZADOR DE REALIMENTAçãO DE DECISãO. Um equalizador de realimentação de decisão é operado tomando primeiras decisões de símbolo a partir de uma saída do equalizador de realimentação de decisão, de tal modo que as primeiras decisões de símbolo são caracterizadas por um retardo de processamento relativamente longo, tomando segundas decisões de símbolo a partir da saída do equalizador de realimentação de decisão, de tal modo que as segundas decisões de símbolo são caracterizadas por um retardo de processamento relativamente curto, e determinando ponderações de derivação para o equalizador de realimentação de decisão na primeira e segunda decisões de símbolo. As primeiras decisões de símbolo podem ser derivadas da saída de um decodificador em treliça de traço de retomo longo. As segundas decisões de símbolo podem ser derivadas da saída de um decodificador em treliça de traço de retomo curto ou de saídas de retardo mais curtas do decodificador em treliça de traço de retorno longo.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57144704P | 2004-05-14 | 2004-05-14 | |
US10/911,282 US8320442B2 (en) | 2004-05-14 | 2004-08-04 | Channel impulse response estimating decision feedback equalizer |
PCT/US2005/011415 WO2005114931A1 (en) | 2004-05-14 | 2005-04-06 | Decision feedback equalizer using decisions from long and short traceback trellis decoders |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0511061A true BRPI0511061A (pt) | 2007-11-27 |
Family
ID=34964266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0511061-0A BRPI0511061A (pt) | 2004-05-14 | 2005-04-06 | método para operar um equalizador de realimentação de decisão, e, equalizador de realimentação de decisão |
Country Status (9)
Country | Link |
---|---|
US (1) | US8320442B2 (pt) |
EP (1) | EP1745620A1 (pt) |
JP (1) | JP2007537663A (pt) |
KR (1) | KR101217198B1 (pt) |
CN (1) | CN1957574B (pt) |
BR (1) | BRPI0511061A (pt) |
CA (1) | CA2565150A1 (pt) |
MX (1) | MXPA06013086A (pt) |
WO (1) | WO2005114931A1 (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7151796B2 (en) * | 2001-02-01 | 2006-12-19 | Broadcom Corporation | High performance equalizer with enhanced DFE having reduced complexity |
JP4593959B2 (ja) * | 2004-04-09 | 2010-12-08 | ソニー株式会社 | 適応等化装置及び方法 |
US7483481B1 (en) * | 2004-08-31 | 2009-01-27 | Adtran, Inc. | System and method for adaptively updating precoder taps |
US7406120B1 (en) * | 2005-04-01 | 2008-07-29 | Bae Systems Information And Electronic Systems Integration Inc. | Transmission channel impulse response estimation using fast algorithms |
US8711916B2 (en) | 2007-07-27 | 2014-04-29 | Intel Corporation | Tap initialization of equalizer based on estimated channel impulse response |
CA3138371A1 (en) * | 2019-06-07 | 2020-12-10 | Michel Fattouche | A novel communication system of high capacity |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4833693A (en) * | 1985-11-21 | 1989-05-23 | Codex Corporation | Coded modulation system using interleaving for decision-feedback equalization |
US5056117A (en) * | 1989-08-07 | 1991-10-08 | At&T Bell Laboratories | Decision feedback equalization with trellis coding |
US5406587A (en) * | 1993-02-08 | 1995-04-11 | Zenith Electronics Corporation | Error tracking loop |
US5453797A (en) * | 1993-02-22 | 1995-09-26 | Massachusetts Institute Of Technology | Method and apparatus for decoding broadcast digital HDTV in the presence of quasi-cyclostationary interference |
US5550596A (en) * | 1994-11-25 | 1996-08-27 | Thomson Multimedia Sa | Digital television signal processing system including a co-channel rejection filter |
US6178209B1 (en) * | 1998-06-19 | 2001-01-23 | Sarnoff Digital Communications | Method of estimating trellis encoded symbols utilizing simplified trellis decoding |
EP1127424B1 (en) | 1998-11-03 | 2004-09-29 | Broadcom Corporation | Dual mode qam/vsb receiver |
JP2000269865A (ja) | 1999-03-17 | 2000-09-29 | Pioneer Electronic Corp | ディジタル信号受信システムにおける信号処理回路 |
US6823489B2 (en) | 2001-04-23 | 2004-11-23 | Koninklijke Philips Electronics N.V. | Generation of decision feedback equalizer data using trellis decoder traceback output in an ATSC HDTV receiver |
US6829297B2 (en) * | 2001-06-06 | 2004-12-07 | Micronas Semiconductors, Inc. | Adaptive equalizer having a variable step size influenced by output from a trellis decoder |
CN100563227C (zh) * | 2002-04-16 | 2009-11-25 | 汤姆森特许公司 | 用于高清晰度电视接收机的连接均衡器/格子解码器结构 |
KR20040025516A (ko) * | 2002-09-19 | 2004-03-24 | 삼성전자주식회사 | 단일반송파수신기의 채널등화기 및 그의 등화방법 |
-
2004
- 2004-08-04 US US10/911,282 patent/US8320442B2/en active Active
-
2005
- 2005-04-06 BR BRPI0511061-0A patent/BRPI0511061A/pt not_active Application Discontinuation
- 2005-04-06 WO PCT/US2005/011415 patent/WO2005114931A1/en active Application Filing
- 2005-04-06 EP EP05731573A patent/EP1745620A1/en not_active Withdrawn
- 2005-04-06 JP JP2007513142A patent/JP2007537663A/ja active Pending
- 2005-04-06 CN CN200580015303XA patent/CN1957574B/zh active Active
- 2005-04-06 CA CA002565150A patent/CA2565150A1/en not_active Abandoned
- 2005-04-06 MX MXPA06013086A patent/MXPA06013086A/es active IP Right Grant
-
2006
- 2006-12-14 KR KR1020067026300A patent/KR101217198B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1957574B (zh) | 2012-02-22 |
CA2565150A1 (en) | 2005-12-01 |
US20050254570A1 (en) | 2005-11-17 |
JP2007537663A (ja) | 2007-12-20 |
MXPA06013086A (es) | 2007-02-28 |
CN1957574A (zh) | 2007-05-02 |
KR20070014202A (ko) | 2007-01-31 |
EP1745620A1 (en) | 2007-01-24 |
KR101217198B1 (ko) | 2012-12-31 |
WO2005114931A1 (en) | 2005-12-01 |
US8320442B2 (en) | 2012-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |