CA2505435A1 - Decision feed forward equalizer system and method - Google Patents
Decision feed forward equalizer system and method Download PDFInfo
- Publication number
- CA2505435A1 CA2505435A1 CA002505435A CA2505435A CA2505435A1 CA 2505435 A1 CA2505435 A1 CA 2505435A1 CA 002505435 A CA002505435 A CA 002505435A CA 2505435 A CA2505435 A CA 2505435A CA 2505435 A1 CA2505435 A1 CA 2505435A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- feed forward
- feedback
- operable
- signals
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000000694 effects Effects 0.000 claims abstract description 25
- 230000002411 adverse Effects 0.000 claims abstract description 18
- 230000003111 delayed effect Effects 0.000 claims description 76
- 230000001419 dependent effect Effects 0.000 claims description 7
- 230000001934 delay Effects 0.000 claims description 6
- 230000010363 phase shift Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
- 108091006146 Channels Proteins 0.000 description 81
- 238000012549 training Methods 0.000 description 27
- 238000004891 communication Methods 0.000 description 12
- 238000013459 approach Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001364 causal effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000013598 vector Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
-
- 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
-
- 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
- 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
-
- 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
-
- 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)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43170802P | 2002-12-09 | 2002-12-09 | |
| US60/431,708 | 2002-12-09 | ||
| US43361802P | 2002-12-16 | 2002-12-16 | |
| US60/433,618 | 2002-12-16 | ||
| PCT/US2003/039129 WO2004054101A1 (en) | 2002-12-09 | 2003-12-09 | Decision feed forward equalizer system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2505435A1 true CA2505435A1 (en) | 2004-06-24 |
Family
ID=32511595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002505435A Abandoned CA2505435A1 (en) | 2002-12-09 | 2003-12-09 | Decision feed forward equalizer system and method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7450634B2 (enExample) |
| EP (1) | EP1647093A1 (enExample) |
| JP (1) | JP4503442B2 (enExample) |
| KR (1) | KR20050084186A (enExample) |
| AU (1) | AU2003297789A1 (enExample) |
| CA (1) | CA2505435A1 (enExample) |
| WO (1) | WO2004054101A1 (enExample) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7317756B2 (en) * | 2001-12-06 | 2008-01-08 | Pulse-Link, Inc. | Ultra-wideband communication apparatus and methods |
| JP3751600B2 (ja) * | 2003-03-27 | 2006-03-01 | 株式会社東芝 | 受信装置及び受信方法 |
| US7437135B2 (en) | 2003-10-30 | 2008-10-14 | Interdigital Technology Corporation | Joint channel equalizer interference canceller advanced receiver |
| US7400692B2 (en) | 2004-01-14 | 2008-07-15 | Interdigital Technology Corporation | Telescoping window based equalization |
| JP2006197349A (ja) * | 2005-01-14 | 2006-07-27 | National Institute Of Information & Communication Technology | 超広帯域無線システム用受信機 |
| JP2006197350A (ja) * | 2005-01-14 | 2006-07-27 | National Institute Of Information & Communication Technology | 超広帯域無線信号受信機 |
| GB2422989A (en) * | 2005-02-03 | 2006-08-09 | Agilent Technologies Inc | Correlating a received data signal with a time delayed version of the signal to obtain a measurement of inter-symbol interference |
| EP1876786A1 (en) * | 2006-07-03 | 2008-01-09 | Koninklijke Philips Electronics N.V. | Blind amplitude estimation for received symbols |
| US7436336B2 (en) * | 2006-12-19 | 2008-10-14 | Broadcom Corporation | Analog digital converter (ADC) having improved stability and signal to noise ratio (SNR) |
| EP2119007A1 (en) * | 2007-02-09 | 2009-11-18 | Texas Instruments Limited | Digital filter |
| WO2008124688A1 (en) | 2007-04-06 | 2008-10-16 | Olympus Communication Technology Of America, Inc. | Methods and systems for diversity combining of synchronization statistics in ofdm systems |
| US8036260B2 (en) * | 2007-08-30 | 2011-10-11 | Freescale Semiconductor, Inc. | System and method for equalizing an incoming signal |
| EP2245816B1 (en) * | 2008-01-22 | 2012-09-05 | Nxp B.V. | Post-DTF/FFT time tracking algorithm for OFDM receivers |
| JP5110529B2 (ja) * | 2008-06-27 | 2012-12-26 | 日本電気株式会社 | 物標探査装置、物標探査プログラム及び物標探査方法 |
| JP5317176B2 (ja) * | 2008-11-07 | 2013-10-16 | 日本電気株式会社 | 物体探査装置及び物体探査プログラム、物体探査方法 |
| JP5317177B2 (ja) * | 2008-11-07 | 2013-10-16 | 日本電気株式会社 | 目標物探知装置及び目標物探知制御プログラム、目標物探知方法 |
| KR101556636B1 (ko) * | 2008-12-16 | 2015-10-01 | 삼성전자주식회사 | 데이터 채널을 이용한 채널 추정 방법 및 장치 |
| US8442106B2 (en) * | 2009-12-14 | 2013-05-14 | Lsi Corporation | Floating-tap decision feedback equalizer for communication channels with severe reflection |
| WO2012102258A1 (ja) * | 2011-01-26 | 2012-08-02 | ルネサスエレクトロニクス株式会社 | 判定帰還型等化器 |
| CN103258106B (zh) * | 2012-02-20 | 2017-04-05 | 赛恩倍吉科技顾问（深圳）有限公司 | 数据处理设备稳定性分析系统及方法 |
| US9584345B1 (en) | 2015-12-09 | 2017-02-28 | International Business Machines Corporation | High data rate multilevel clock recovery system |
| WO2018026590A1 (en) * | 2016-08-01 | 2018-02-08 | Anil Mehta | 64 gigabit fibre channel speed negotiation and transmitter training |
| US10050813B2 (en) | 2016-10-25 | 2018-08-14 | Samsung Electronics Co., Ltd | Low complexity sequence estimator for general packet radio service (GPRS) system |
| KR102452622B1 (ko) * | 2018-06-11 | 2022-10-07 | 삼성전자주식회사 | 등화기 및 이를 포함하는 송신기 |
| DE102020100751A1 (de) | 2019-01-31 | 2020-08-06 | Taiwan Semiconductor Manufacturing Co., Ltd. | Mehrfachabgriff-entscheidungsvorwärtsentzerrer mitpräcursor- und postcursorabgriffen |
| DE102020100926B4 (de) * | 2019-01-31 | 2025-06-18 | Taiwan Semiconductor Manufacturing Company, Ltd. | Serdes-empfänger mit optimierter cdr-impulsformung |
| EP4140046B1 (en) * | 2020-06-03 | 2024-07-31 | Huawei Technologies Co., Ltd. | Equalisation method and apparatus |
| TWI842371B (zh) * | 2023-02-03 | 2024-05-11 | 瑞昱半導體股份有限公司 | 決策回授等化器 |
| KR102674447B1 (ko) * | 2023-03-30 | 2024-06-13 | 한국전자기술연구원 | 직렬기를 이용한 수신기용 결정 피드백 이퀄라이저 회로 및 그의 구동 방법 |
| CN117336128B (zh) * | 2023-10-12 | 2024-07-12 | 青岛柯锐思德电子科技有限公司 | 一种bpm-bpsk接收机位置解调软判决方法 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649505A (en) * | 1984-07-02 | 1987-03-10 | General Electric Company | Two-input crosstalk-resistant adaptive noise canceller |
| JPH07107985B2 (ja) * | 1986-01-24 | 1995-11-15 | 株式会社日立製作所 | 波形補償方法 |
| JPH07107986B2 (ja) * | 1986-02-14 | 1995-11-15 | 株式会社日立製作所 | 波形補償方法 |
| JPS62200828A (ja) * | 1986-02-28 | 1987-09-04 | Hitachi Ltd | 波形補償装置 |
| JPH0677767A (ja) * | 1992-08-26 | 1994-03-18 | Sony Corp | ノンリニアキャンセラー |
| US5414733A (en) * | 1993-12-20 | 1995-05-09 | Adtran | Decision feedback equalizer employing fixed ratio postcursor taps for minimizing noise and intersymbol interference in signals conveyed over high speed data service loop |
| US5706057A (en) * | 1994-03-21 | 1998-01-06 | Rca Thomson Licensing Corporation | Phase detector in a carrier recovery network for a vestigial sideband signal |
| US5835532A (en) * | 1994-03-21 | 1998-11-10 | Rca Thomson Licensing Corporation | Blind equalizer for a vestigial sideband signal |
| US5850162A (en) * | 1997-02-20 | 1998-12-15 | Harris Corporation | Linearization of an amplifier employing modified feedforward correction |
| US6012161A (en) * | 1997-11-26 | 2000-01-04 | At&T Corp. | System and method for joint coding and decision feedback equalization |
| JP3387405B2 (ja) * | 1998-01-07 | 2003-03-17 | 日本電気株式会社 | 判定帰還型等化器及びその等化制御方法並びにその制御プログラムを記録した記録媒体 |
| US6147555A (en) * | 1998-10-19 | 2000-11-14 | Powerwave Technologies, Inc. | Amplification system having mask detection |
| US6140874A (en) | 1998-10-19 | 2000-10-31 | Powerwave Technologies, Inc. | Amplification system having mask detection and bias compensation |
| US6144255A (en) | 1998-10-19 | 2000-11-07 | Powerwave Technologies, Inc. | Feedforward amplification system having mask detection compensation |
| US6118339A (en) | 1998-10-19 | 2000-09-12 | Powerwave Technologies, Inc. | Amplification system using baseband mixer |
| JP3371956B2 (ja) * | 1999-11-09 | 2003-01-27 | 日本電気株式会社 | 干渉キャンセラ装置 |
| EP1292077A3 (en) * | 2001-09-11 | 2006-10-11 | Broadcom Corporation | Sequence estimation for PSK signals |
| US7130366B2 (en) * | 2002-04-05 | 2006-10-31 | Scintera Networks, Inc. | Compensation circuit and method for reducing intersymbol interference products caused by signal transmission via dispersive media |
-
2003
- 2003-12-09 JP JP2004558617A patent/JP4503442B2/ja not_active Expired - Fee Related
- 2003-12-09 WO PCT/US2003/039129 patent/WO2004054101A1/en not_active Ceased
- 2003-12-09 CA CA002505435A patent/CA2505435A1/en not_active Abandoned
- 2003-12-09 US US10/538,174 patent/US7450634B2/en not_active Expired - Fee Related
- 2003-12-09 AU AU2003297789A patent/AU2003297789A1/en not_active Abandoned
- 2003-12-09 KR KR1020057010270A patent/KR20050084186A/ko not_active Withdrawn
- 2003-12-09 EP EP03796858A patent/EP1647093A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006509443A (ja) | 2006-03-16 |
| KR20050084186A (ko) | 2005-08-26 |
| JP4503442B2 (ja) | 2010-07-14 |
| US7450634B2 (en) | 2008-11-11 |
| US20060164270A1 (en) | 2006-07-27 |
| AU2003297789A1 (en) | 2004-06-30 |
| WO2004054101A1 (en) | 2004-06-24 |
| EP1647093A1 (en) | 2006-04-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |