JP5517388B2 - 周波数選択チャンネル等化・復号装置 - Google Patents
周波数選択チャンネル等化・復号装置 Download PDFInfo
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- JP5517388B2 JP5517388B2 JP2002570499A JP2002570499A JP5517388B2 JP 5517388 B2 JP5517388 B2 JP 5517388B2 JP 2002570499 A JP2002570499 A JP 2002570499A JP 2002570499 A JP2002570499 A JP 2002570499A JP 5517388 B2 JP5517388 B2 JP 5517388B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
- H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
- H04L1/0048—Decoding adapted to other signal detection operation in conjunction with detection of multiuser or interfering signals, e.g. iteration between CDMA or MIMO detector and FEC decoder
-
- 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
- H04L25/03171—Arrangements involving maximum a posteriori probability [MAP] detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Error Detection And Correction (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
H1=[0.38 0.6 0.6 0.38]
H2=[0.8264−0.1653 0.8512 0.1636 0.81]
Claims (10)
- 複数のセンサーから等価多チャンネル伝送路を介して到来するサンプル列を等化・復号処理するためのチャンネル等化・復号装置であって、各々等化器(10)と重み付け出力端を有する復号器(20)とを含む直列のモジュール群を備え、そのうちの第1段目のモジュールは複数のチャンネル伝送路から出力されるサンプル列を受信し、第1段目より後段のモジュールは該複数のチャンネル伝送路から出力されて前段までのモジュールの処理時間に等しい量だけ遅延されたサンプル列を受信する一方で各前段のモジュールの出力も受信する形式のチャンネル等化・復号装置において、
第1段目のモジュールは前記複数のチャンネル伝送路から出力されるサンプル列を受信し、第1段目よりも後段のモジュールは該複数のチャンネル伝送路から出力されて前段までのモジュールの処理時間に等しい量だけ遅延された前記複数のチャネル伝送路から出力されるサンプル列を受信し、各モジュールが、前記複数の互いに異なるチャンネル伝送路からの受信サンプル列を識別対象のサンプル列に対応する複数の互いに異なる未等化処理データとして用いることにより一つの同一等化サンプル列を決定可能な多チャンネル等化器を備え、第1段目のモジュール内の多チャンネル等化器は前記複数の互いに異なるチャンネル伝送路からの受信サンプル列と等化器出力とから決定した等化サンプル列を同モジュール内の復号器へ与え、第1段目より後段のモジュール内の多チャンネル等化器は前記複数の互いに異なるチャンネル伝送路から出力されて前段までのモジュールの処理時間に等しい量だけ遅延された受信サンプル列と各前段のモジュールの復号器から出力される評価済データとから決定した等化サンプル列を同モジュール内の復号器へ与えるものであることを特徴とするチャンネル等化・復号装置。 - 各モジュールの等化器(10)が、前記少なくとも二つの互いに異なるチャンネル伝送路からの受信サンプル列の各々に対して別々に等化処理を実行する手段を備えていることを特徴とする請求項1に記載の装置。
- 各モジュールの等化器(10)が、前記少なくとも二つの互いに異なるチャンネル伝送路からの受信サンプル列を夫々導く少なくとも二つのトランスバーサルフィルタ群(11)と、トランスバーサルフィルタ群(11)からの出力の集合を加算処理する加算器(12)と、前段モジュールの復号器から出力される評価済データを導く別のトランスバーサルフィルタ(13)と、加算器(12)の出力端に得られるサンプル列から前記別のトランスバーサルフィルタで導かれるサンプル列を減算処理する手段(16)と、該減算処理手段の出力から等化サンプル列を決定して同モジュール内の復号器へ与える手段(17)とを備えていることを特徴とする請求項1又は2に記載の装置。
- 別のトランスバーサルフィルタ(13)が、前記加算器の出力に現れる記号間干渉を少なくとも部分的に再構築したサンプル列を前記減算処理手段に与えるように構成されていることを特徴とする請求項3に記載の装置。
- 第1段目のモジュールが、自身の等化器(10)の出力端から取り出されて決定されたデータを同じく自身の前記別のトランスバーサルフィルタ(13)に供給する手段を備えていることを特徴とする請求項3又は4に記載の装置。
- 直列のモジュール群の各モジュールが、重み付け出力端及び入力端を備えた検出器(15)と、前記少なくとも二つの互いに異なるチャンネル伝送路からの受信サンプル列を夫々導く少なくとも二つのフィルタ群(14)とを含む等化器を備え、前記検出器(15)がこれらフィルタ群(14)からの出力を受信する一方で第1段目よりも後段のモジュールでは前段のモジュールからの少なくとも一つの出力も受信することを特徴とする請求項1又は2に記載の装置。
- 復号器(20)が、記号−2進変換SBC機能(22)と、デインタリーブ機能(23)と、2進重み付け入出力端を有する復号機能(24)と、インタリーブ機能(25)と、2進−記号変換BSC機能(26)との五つの機能要素を含むM進重み付け入出力端を備えたチャンネル復号器であることを特徴とする請求項1〜6のいずれか1項に記載の装置。
- 各モジュールが、SBC機能要素(22)と復号機能要素(24)との間にデインタリーブ機能要素(23)を備えると共に、復号機能要素(24)とBSC機能要素(26)との間にインタリーブ機能要素(25)を備えていることを特徴とする請求項7に記載の装置。
- 各モジュールが、SBC機能要素(22)よりも前段側にデインタリーブ機能要素(23)を備えると共に、BSC機能要素(26)よりも後段側にインタリーブ機能要素(25)を備えていることを特徴とする請求項7に記載の装置。
- SBC機能要素(22)がトレリス符号化変調を積分するものであることを特徴とする請求項7に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/03012 | 2001-03-06 | ||
FR0103012A FR2822001B1 (fr) | 2001-03-06 | 2001-03-06 | Dispositif d'egalisation et de decodage de canaux selectifs en frequence |
PCT/FR2002/000783 WO2002071712A2 (fr) | 2001-03-06 | 2002-03-05 | Dispositif d'egalisation et de decodage de canaux selectifs en frequence |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004527944A JP2004527944A (ja) | 2004-09-09 |
JP5517388B2 true JP5517388B2 (ja) | 2014-06-11 |
Family
ID=8860775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2002570499A Expired - Fee Related JP5517388B2 (ja) | 2001-03-06 | 2002-03-05 | 周波数選択チャンネル等化・復号装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7561647B2 (ja) |
EP (1) | EP1366608B1 (ja) |
JP (1) | JP5517388B2 (ja) |
KR (1) | KR100850154B1 (ja) |
CN (1) | CN1535525A (ja) |
AU (1) | AU2002244803A1 (ja) |
DE (1) | DE60215127T2 (ja) |
ES (1) | ES2272682T3 (ja) |
FR (1) | FR2822001B1 (ja) |
WO (1) | WO2002071712A2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011078565A1 (de) | 2011-03-31 | 2012-10-04 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und Vorrichtung zur Bestimmung einer extrinsischen Information |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2675968B1 (fr) | 1991-04-23 | 1994-02-04 | France Telecom | Procede de decodage d'un code convolutif a maximum de vraisemblance et ponderation des decisions, et decodeur correspondant. |
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 |
JP2885618B2 (ja) * | 1993-07-15 | 1999-04-26 | 日本電気株式会社 | 適応受信機 |
FR2730370B1 (fr) * | 1995-02-07 | 1997-04-25 | France Telecom | Dispositif de reception de signaux numeriques a structure iterative, module et procede correspondants |
FR2738967B1 (fr) * | 1995-09-15 | 1997-12-05 | France Telecom | Dispositif d'egalisation adaptatif pour systemes de communications numeriques |
FR2742619B1 (fr) * | 1995-12-15 | 1998-02-06 | Thomson Csf | Procede d'egalisation multicapteur permettant une reception multicapteur en presence d'interferences et de multitrajets de propagation, et recepteur pour sa mise en oeuvre |
US6072785A (en) * | 1997-03-04 | 2000-06-06 | At&T Corp | Differential PSK signalling in CDMA networks |
FR2763454B1 (fr) * | 1997-05-15 | 1999-08-06 | France Telecom | Dispositif d'egalisation et de decodage pour un canal de transmission numerique selectif en frequence |
EP0959580A1 (en) * | 1998-05-19 | 1999-11-24 | Lucent Technologies Inc. | Iterative equaliser and decoder |
US6430724B1 (en) * | 1999-05-28 | 2002-08-06 | Agere Systems Guardian Corp. | Soft selection combining based on successive erasures of frequency band components in a communication system |
EP1065851A1 (en) * | 1999-07-02 | 2001-01-03 | Motorola, Inc. | Decision feedback equaliser with reduced-state sequence estimation |
FI111888B (fi) * | 2000-02-25 | 2003-09-30 | Nokia Corp | Mukautuva menetelmä ja järjestelmä vähittäisen redundanssin toteuttamiseksi vastaanotossa |
US6307901B1 (en) * | 2000-04-24 | 2001-10-23 | Motorola, Inc. | Turbo decoder with decision feedback equalization |
US6745352B2 (en) * | 2000-12-13 | 2004-06-01 | Ericsson Inc. | Methods of estimating error rates for communications received using iterative processing and related receivers |
US7012957B2 (en) * | 2001-02-01 | 2006-03-14 | Broadcom Corporation | High performance equalizer having reduced complexity |
-
2001
- 2001-03-06 FR FR0103012A patent/FR2822001B1/fr not_active Expired - Lifetime
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2002
- 2002-03-05 JP JP2002570499A patent/JP5517388B2/ja not_active Expired - Fee Related
- 2002-03-05 DE DE60215127T patent/DE60215127T2/de not_active Expired - Lifetime
- 2002-03-05 AU AU2002244803A patent/AU2002244803A1/en not_active Abandoned
- 2002-03-05 WO PCT/FR2002/000783 patent/WO2002071712A2/fr active IP Right Grant
- 2002-03-05 US US10/471,139 patent/US7561647B2/en not_active Expired - Fee Related
- 2002-03-05 KR KR1020037011714A patent/KR100850154B1/ko not_active IP Right Cessation
- 2002-03-05 ES ES02713010T patent/ES2272682T3/es not_active Expired - Lifetime
- 2002-03-05 EP EP02713010A patent/EP1366608B1/fr not_active Expired - Lifetime
- 2002-03-05 CN CNA028061578A patent/CN1535525A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2002071712A3 (fr) | 2002-12-19 |
FR2822001A1 (fr) | 2002-09-13 |
EP1366608A2 (fr) | 2003-12-03 |
ES2272682T3 (es) | 2007-05-01 |
AU2002244803A1 (en) | 2002-09-19 |
DE60215127D1 (de) | 2006-11-16 |
JP2004527944A (ja) | 2004-09-09 |
KR20040028726A (ko) | 2004-04-03 |
DE60215127T2 (de) | 2007-03-08 |
CN1535525A (zh) | 2004-10-06 |
KR100850154B1 (ko) | 2008-08-04 |
EP1366608B1 (fr) | 2006-10-04 |
US7561647B2 (en) | 2009-07-14 |
FR2822001B1 (fr) | 2003-06-27 |
WO2002071712A2 (fr) | 2002-09-12 |
US20040120432A1 (en) | 2004-06-24 |
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