JP2005535249A - 非線形補償器が後続する差動デコーダ - Google Patents
非線形補償器が後続する差動デコーダ Download PDFInfo
- Publication number
- JP2005535249A JP2005535249A JP2004527176A JP2004527176A JP2005535249A JP 2005535249 A JP2005535249 A JP 2005535249A JP 2004527176 A JP2004527176 A JP 2004527176A JP 2004527176 A JP2004527176 A JP 2004527176A JP 2005535249 A JP2005535249 A JP 2005535249A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- receiver
- output signal
- decoder output
- term
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
-
- 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
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
- H04L25/062—Setting decision thresholds using feedforward techniques only
-
- 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
- H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
- H04L25/03146—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals 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
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent 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
- H04L2025/03401—PSK
-
- 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
- H04L2025/03745—Timing of adaptation
- H04L2025/03764—Timing of adaptation only during predefined intervals
- H04L2025/0377—Timing of adaptation only during predefined intervals during the reception of training signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
μ1=<uk>
μ2=<bk uk>
μ3=<bk−1 uk>
μ4=<bk+1 uk>
μ5=<bkbk−1
uk>
μ6=<bkbk+1
uk>
μ7=<bk−1 bk
bk+1 uk>
A=f1(μ)
B=f2(μ)
C=f3(μ)
D=G*
E=f4(μ)
F=f5(μ)
G=f6(μ)
H=f7(μ)
ここで、f1乃至f7は、知られたプリアンブルのシーケンス特性及びukの構造から得られる関数であり、μ={μ1,μ2,μ3,μ4,μ5,μ6,μ7}である。
Claims (12)
- 変調されたコード化された信号を受信するための受信器であって、前記信号を復調するための位相シフトキーイング復調器と、前記信号をデコードするための差動検出器とを有する受信器において、前記差動検出器は、デコーダ出力信号を補償するための、デコーダに結合された非線形補償器を有することを特徴とする受信器。
- 前記非線形補償器は、前記デコーダ出力信号の少なくとも1つの項の少なくとも1つの係数を推定するためのチャネル推定器と、前記デコーダ出力信号の少なくとも1つの項を除去するための除去器とを有することを特徴とする、請求項1に記載の受信器。
- 前記受信器は、Bluetooth環境用に設計されることを特徴とする、請求項2に記載の受信器。
- 前記デコーダ出力信号は、uk=Abk+Bbk−1+Cbk+1+Dbk *+Ebk−1bk+Fbkbk+1+Gbk−1bkbk+1+Hとして定義され、前記除去器はH項を除去することを特徴とする、請求項3に記載の受信器。
- 前記除去器は、前記H項が除去されるように前記デコーダ出力信号を前記H項と結合させるために、前記チャネル推定器からH係数を受信する結合器を有することを特徴とする、請求項4に記載の受信器。
- 前記デコーダ出力信号は、uk=Abk+Bbk−1+Cbk+1+Dbk *+Ebk−1bk+Fbkbk+1+Gbk−1bkbk+1+Hとして定義され、前記除去器はBbk−1項を除去することを特徴とする、請求項3に記載の受信器。
- 前記除去器は、前記Bbk−1項が除去されるように前記デコーダ出力信号を前記Bbk−1項と結合させるために、前記チャネル推定器からのB係数と、TSだけ遅延された前記非線形補償器の出力部からのbk−1信号との積を受信する結合器を有することを特徴とする、請求項6に記載の受信器。
- 前記除去器は、前記補償されたデコーダ出力信号をスライシングするために、前記結合器と前記非線形補償器の出力部との間に配置されたスライサを有することを特徴とする、請求項7に記載の受信器。
- 変調されたコード化された信号を受信するための受信器における利用のための非線形補償器であって、前記受信器は、前記信号を復調するための位相シフトキーイング復調器と、前記信号をデコードするための差動検出器とを有する非線形補償器において、前記差動検出器は、デコーダ出力信号を補償するための、デコーダに結合された前記非線形補償器を有することを特徴とする非線形補償器。
- 変調されたコード化された信号を送信するための差動コーダと位相シフトキーイング変調器とを持つ送信器を有し、前記信号を復調するための位相シフトキーイング復調器と前記信号をデコードするための差動検出器とを持つ前記変調されたコード化された信号を受信するための受信器を有する送受信器において、前記差動検出器は、デコーダ出力信号を補償するためのデコーダに結合された非線形補償器を有することを特徴とする送受信器。
- 変調されたコード化された信号を受信するための方法であって、位相シフトキーイング復調によって前記信号を復調するステップと、前記信号をデコードするステップとを有する方法において、前記デコードするステップは、前記デコードされた信号を非線形に補償するサブステップを有することを特徴とする方法。
- 変調されたコード化された信号を受信するためのプロセッサプログラムであって、位相シフトキーイング復調によって前記信号を復調する機能と、前記信号をデコードする機能とを有するプロセッサプログラムにおいて、前記デコードする機能は、前記デコードされた信号を非線形に補償するサブ機能を有することを特徴とするプロセッサプログラム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02078230 | 2002-08-02 | ||
PCT/IB2003/003329 WO2004015947A1 (en) | 2002-08-02 | 2003-07-24 | Differential decoder followed by non-linear compensator |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005535249A true JP2005535249A (ja) | 2005-11-17 |
Family
ID=31502778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004527176A Pending JP2005535249A (ja) | 2002-08-02 | 2003-07-24 | 非線形補償器が後続する差動デコーダ |
Country Status (7)
Country | Link |
---|---|
US (1) | US7616709B2 (ja) |
EP (1) | EP1529388A1 (ja) |
JP (1) | JP2005535249A (ja) |
KR (1) | KR100971457B1 (ja) |
CN (1) | CN1672379B (ja) |
AU (1) | AU2003249433A1 (ja) |
WO (1) | WO2004015947A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200727636A (en) * | 2006-01-13 | 2007-07-16 | Integrated Sys Solution Corp | Method to enhance the bluetooth transmission rate adaptively between a transmitter and a receiver |
US7949327B2 (en) * | 2006-05-18 | 2011-05-24 | Integrated System Solution Corp. | Method and apparatus for reception of long range signals in bluetooth |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5596747A (en) * | 1979-01-17 | 1980-07-23 | Nec Corp | Adaptive signal discrimination unit |
JPH04292022A (ja) * | 1991-03-20 | 1992-10-16 | Fujitsu Ltd | 非線形歪補償器をもつディジタル無線装置 |
JPH06237273A (ja) * | 1993-02-09 | 1994-08-23 | Toshiba Corp | 位相復調装置 |
JPH0879130A (ja) * | 1994-09-01 | 1996-03-22 | Oki Electric Ind Co Ltd | 受信装置及びパイロット信号除去装置 |
JPH08125881A (ja) * | 1994-10-20 | 1996-05-17 | Nec Corp | デジタル画像受信器 |
JPH08163198A (ja) * | 1994-12-07 | 1996-06-21 | Fujitsu Ltd | 非線形歪補償装置 |
JPH08274664A (ja) * | 1995-02-02 | 1996-10-18 | Nippon Telegr & Teleph Corp <Ntt> | 歪補償回路 |
JPH09247051A (ja) * | 1996-03-08 | 1997-09-19 | Mitsubishi Electric Corp | ニューラルネットワークを用いた波形歪み補償器 |
JP2000341184A (ja) * | 1999-05-31 | 2000-12-08 | Matsushita Electric Ind Co Ltd | 受信装置 |
JP2001094618A (ja) * | 1999-09-20 | 2001-04-06 | Matsushita Electric Ind Co Ltd | 復調装置および方法 |
JP2001251197A (ja) * | 2000-03-06 | 2001-09-14 | Matsushita Electric Ind Co Ltd | 誤り訂正受信機 |
JP2002043984A (ja) * | 2000-06-23 | 2002-02-08 | Stmicroelectronics Nv | 情報伝送チャンネルのインパルス応答を推定する方法及び装置 |
JP2002111754A (ja) * | 2000-09-29 | 2002-04-12 | Toshiba Corp | 複数の変調方式に対応可能な受信デマッピング装置 |
WO2002035728A2 (en) * | 2000-10-26 | 2002-05-02 | Koninklijke Philips Electronics N.V. | Equalisation using two training sequences |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996005680A1 (fr) * | 1994-08-08 | 1996-02-22 | Ntt Mobile Communications Network Inc. | Procede de detection de retard a prediction lineaire des ondes a modulation de phase differentielle (mdpd) |
US5712870A (en) * | 1995-07-31 | 1998-01-27 | Harris Corporation | Packet header generation and detection circuitry |
CN2276692Y (zh) * | 1996-05-30 | 1998-03-18 | 张熹 | 数字立体声/双伴音电视伴音接收机 |
US6097768A (en) * | 1996-11-21 | 2000-08-01 | Dps Group, Inc. | Phase detector for carrier recovery in a DQPSK receiver |
US5878085A (en) * | 1997-08-15 | 1999-03-02 | Sicom, Inc. | Trellis coded modulation communications using pilot bits to resolve phase ambiguities |
AU1383299A (en) * | 1997-11-14 | 1999-06-07 | Worldspace Management Corporation | Signaling protocol for satellite direct radio broadcast system |
US6603801B1 (en) * | 1998-01-16 | 2003-08-05 | Intersil Americas Inc. | Spread spectrum transceiver for use in wireless local area network and having multipath mitigation |
US6487255B1 (en) * | 1998-08-31 | 2002-11-26 | Ericsson Inc. | Information generation for coherent demodulation of differentially encoded signals |
US6578162B1 (en) * | 1999-01-20 | 2003-06-10 | Skyworks Solutions, Inc. | Error recovery method and apparatus for ADPCM encoded speech |
US6127884A (en) | 1999-05-24 | 2000-10-03 | Philips Electronics North America Corp. | Differentiate and multiply based timing recovery in a quadrature demodulator |
US6853695B1 (en) * | 1999-10-27 | 2005-02-08 | Paradyne Corporation | System and method for deriving symbol timing |
US6977977B1 (en) * | 2001-02-20 | 2005-12-20 | Comsys Communication & Signal Processing Ltd. | Compensation of I/Q gain mismatch in a communications receiver |
US6771720B1 (en) * | 2001-03-30 | 2004-08-03 | Skyworks Solutions, Inc. | Amplification control scheme for a receiver |
-
2003
- 2003-07-24 KR KR1020057001876A patent/KR100971457B1/ko not_active IP Right Cessation
- 2003-07-24 AU AU2003249433A patent/AU2003249433A1/en not_active Abandoned
- 2003-07-24 EP EP03784364A patent/EP1529388A1/en not_active Ceased
- 2003-07-24 WO PCT/IB2003/003329 patent/WO2004015947A1/en active Application Filing
- 2003-07-24 JP JP2004527176A patent/JP2005535249A/ja active Pending
- 2003-07-24 CN CN038184524A patent/CN1672379B/zh not_active Expired - Fee Related
- 2003-07-24 US US10/523,428 patent/US7616709B2/en not_active Expired - Fee Related
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5596747A (en) * | 1979-01-17 | 1980-07-23 | Nec Corp | Adaptive signal discrimination unit |
JPH04292022A (ja) * | 1991-03-20 | 1992-10-16 | Fujitsu Ltd | 非線形歪補償器をもつディジタル無線装置 |
JPH06237273A (ja) * | 1993-02-09 | 1994-08-23 | Toshiba Corp | 位相復調装置 |
JPH0879130A (ja) * | 1994-09-01 | 1996-03-22 | Oki Electric Ind Co Ltd | 受信装置及びパイロット信号除去装置 |
JPH08125881A (ja) * | 1994-10-20 | 1996-05-17 | Nec Corp | デジタル画像受信器 |
JPH08163198A (ja) * | 1994-12-07 | 1996-06-21 | Fujitsu Ltd | 非線形歪補償装置 |
JPH08274664A (ja) * | 1995-02-02 | 1996-10-18 | Nippon Telegr & Teleph Corp <Ntt> | 歪補償回路 |
JPH09247051A (ja) * | 1996-03-08 | 1997-09-19 | Mitsubishi Electric Corp | ニューラルネットワークを用いた波形歪み補償器 |
JP2000341184A (ja) * | 1999-05-31 | 2000-12-08 | Matsushita Electric Ind Co Ltd | 受信装置 |
JP2001094618A (ja) * | 1999-09-20 | 2001-04-06 | Matsushita Electric Ind Co Ltd | 復調装置および方法 |
JP2001251197A (ja) * | 2000-03-06 | 2001-09-14 | Matsushita Electric Ind Co Ltd | 誤り訂正受信機 |
JP2002043984A (ja) * | 2000-06-23 | 2002-02-08 | Stmicroelectronics Nv | 情報伝送チャンネルのインパルス応答を推定する方法及び装置 |
JP2002111754A (ja) * | 2000-09-29 | 2002-04-12 | Toshiba Corp | 複数の変調方式に対応可能な受信デマッピング装置 |
WO2002035728A2 (en) * | 2000-10-26 | 2002-05-02 | Koninklijke Philips Electronics N.V. | Equalisation using two training sequences |
Also Published As
Publication number | Publication date |
---|---|
US7616709B2 (en) | 2009-11-10 |
EP1529388A1 (en) | 2005-05-11 |
CN1672379A (zh) | 2005-09-21 |
US20060013339A1 (en) | 2006-01-19 |
KR100971457B1 (ko) | 2010-07-22 |
AU2003249433A1 (en) | 2004-02-25 |
CN1672379B (zh) | 2010-04-28 |
KR20050025194A (ko) | 2005-03-11 |
WO2004015947A1 (en) | 2004-02-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8755263B2 (en) | Device and method for the optimal estimation of distortion of a transmission medium, comprising the sequential emission of pairs of quadrature complementary sequences | |
EP0804007A2 (en) | Adaptive equalizer with step size proportional to the estimated delay between received signals | |
EP1228611B1 (en) | Radio receiver with two stages of dc offset correction, synchronisation and channel estimation | |
JPH09505975A (ja) | 包絡線変動制御デジタル変調方法 | |
US9866415B1 (en) | Frequency shift keying (FSK) demodulator and method therefor | |
EP1453261B1 (en) | Channel estimation method for a mobile communication system | |
CN109361634B (zh) | 接收机载波频偏的补偿方法及系统 | |
US7415078B2 (en) | Demodulation for phase modulation | |
US9049091B2 (en) | System and method for in-phase/quadrature-phase (I/Q) time delay measurement and compensation | |
KR19990088679A (ko) | 디지털전송시스템용수신기 | |
JP2007228057A (ja) | 衛星通信システム及び衛星通信用送信局 | |
US7616709B2 (en) | Differential decoder followed by non-linear compensator | |
US6618453B1 (en) | Estimating interference in a communication system | |
JPH10210093A (ja) | 信号オフセット除去方法 | |
CN115801523B (zh) | 一种基于频率偏移估计的高斯最小频移键控系统通信方法 | |
US20050201490A1 (en) | Zero-crossing detector for receivers | |
KR100237432B1 (ko) | π/4 - DQPSK 송신장치 및 방법 | |
KR100436207B1 (ko) | 채널 추정 및 디씨 옵셋 보상 방식을 이용한 홈알에프시스템 | |
JP5541551B1 (ja) | 信号分離装置及びそれに用いる信号分離方法 | |
CA2347747A1 (en) | Equalization method especially for offset modulation modes | |
JPH10233722A (ja) | ダイバーシティ受信機 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060721 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20081112 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081204 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20090224 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20090303 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090730 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20091014 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20091021 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100127 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100413 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100809 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20100930 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20101022 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120130 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20120202 |