CN1130832A - 软判决数字通信的方法和设备 - Google Patents

软判决数字通信的方法和设备 Download PDF

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Publication number
CN1130832A
CN1130832A CN95118138.6A CN95118138A CN1130832A CN 1130832 A CN1130832 A CN 1130832A CN 95118138 A CN95118138 A CN 95118138A CN 1130832 A CN1130832 A CN 1130832A
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CN
China
Prior art keywords
symbol
depsk
relevant
modulation signal
current
Prior art date
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Pending
Application number
CN95118138.6A
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English (en)
Chinese (zh)
Inventor
达赖厄斯A·布莱塞克
约翰·W·阿伦斯
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Motorola Solutions Inc
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Motorola Inc
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Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of CN1130832A publication Critical patent/CN1130832A/zh
Pending legal-status Critical Current

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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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Communication Control (AREA)
CN95118138.6A 1994-11-01 1995-10-31 软判决数字通信的方法和设备 Pending CN1130832A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/332,680 US5706313A (en) 1994-11-01 1994-11-01 Soft decision digital communication method and apparatus
US332680 1994-11-01

Publications (1)

Publication Number Publication Date
CN1130832A true CN1130832A (zh) 1996-09-11

Family

ID=23299356

Family Applications (1)

Application Number Title Priority Date Filing Date
CN95118138.6A Pending CN1130832A (zh) 1994-11-01 1995-10-31 软判决数字通信的方法和设备

Country Status (13)

Country Link
US (1) US5706313A (US06373033-20020416-M00071.png)
JP (1) JPH08214037A (US06373033-20020416-M00071.png)
CN (1) CN1130832A (US06373033-20020416-M00071.png)
AU (1) AU704779B2 (US06373033-20020416-M00071.png)
BR (1) BR9505033A (US06373033-20020416-M00071.png)
CA (1) CA2161057C (US06373033-20020416-M00071.png)
DE (1) DE19540652C2 (US06373033-20020416-M00071.png)
ES (1) ES2113300B1 (US06373033-20020416-M00071.png)
FI (1) FI955196A (US06373033-20020416-M00071.png)
FR (1) FR2726420A1 (US06373033-20020416-M00071.png)
GB (1) GB2294851B (US06373033-20020416-M00071.png)
IT (1) IT1276582B1 (US06373033-20020416-M00071.png)
RU (1) RU2121232C1 (US06373033-20020416-M00071.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100385886C (zh) * 2004-11-18 2008-04-30 中国人民解放军理工大学通信工程学院 正交扩频差分相位调制中的差分比特软值输出方法
CN105099609A (zh) * 2014-05-15 2015-11-25 华为技术有限公司 软判决译码的方法和装置

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FR2745139A1 (fr) * 1996-02-21 1997-08-22 Philips Electronics Nv Systeme de transmissions numeriques a modulation a phase continue
EP0795976A3 (de) * 1996-03-13 2000-02-02 Ascom Tech Ag Verfahren zum Empfangen eines nach einem ETS-HIPERLAN-Standard kodierten und modulierten Signals
US5940446A (en) * 1997-04-28 1999-08-17 Stanford Telecommunications, Inc. Maximum likelihood detection of MPSK bursts with inserted reference symbols
US6263466B1 (en) * 1998-03-05 2001-07-17 Teledesic Llc System and method of separately coding the header and payload of a data packet for use in satellite data communication
US6487255B1 (en) 1998-08-31 2002-11-26 Ericsson Inc. Information generation for coherent demodulation of differentially encoded signals
US6567474B1 (en) 1999-03-02 2003-05-20 Phonex Corporation Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK)
JP3801811B2 (ja) * 1999-05-17 2006-07-26 京セラ株式会社 携帯テレビ電話端末
JP3776283B2 (ja) * 2000-03-17 2006-05-17 三菱電機株式会社 復調器、受信機、および通信システム
US6694469B1 (en) 2000-04-14 2004-02-17 Qualcomm Incorporated Method and an apparatus for a quick retransmission of signals in a communication system
US7035354B2 (en) * 2000-12-08 2006-04-25 International Business Machine Corporation CDMA multi-user detection with a real symbol constellation
JP3549519B2 (ja) * 2002-04-26 2004-08-04 沖電気工業株式会社 軟出力復号器
US7471903B1 (en) 2002-06-26 2008-12-30 Nortel Networks Limited Optical communication system
US7161975B2 (en) * 2002-11-27 2007-01-09 International Business Machines Corporation Enhancing CDMA multiuser detection by constraining soft decisions
US7191385B2 (en) * 2003-04-24 2007-03-13 Locus Location Systems, Llc Error correction in a locating method and system
DE102004061857A1 (de) * 2004-09-28 2006-04-06 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Trägerfrequenzsynchronisierung eines Offset-Quadraturphasenmodulierten Signals
US7496153B2 (en) * 2004-10-14 2009-02-24 Mitsubishi Electric Research Laboratories, Inc. Modulating signals for coherent and differentially coherent receivers
US7398454B2 (en) * 2004-12-21 2008-07-08 Tyco Telecommunications (Us) Inc. System and method for forward error correction decoding using soft information
US20060233233A1 (en) * 2005-03-11 2006-10-19 Welborn Matthew L Method and device for receiving or transmitting a signal with encoded data
US7405678B2 (en) * 2006-09-25 2008-07-29 International Business Machines Corporation Method of retrieving data from a storage device using a recovered read-back parameter
US20090161797A1 (en) * 2007-06-08 2009-06-25 Cowles Philip R Satellite detection of automatic identification system signals
US7876865B2 (en) * 2007-06-08 2011-01-25 COM DEV International Ltd System and method for decoding automatic identification system signals
US7860191B2 (en) 2007-09-07 2010-12-28 Qualcomm Incorporated Optimal two-layer coherent demodulation for D-PSK (Differential Phase Shift Keying)
US8780788B2 (en) * 2009-09-25 2014-07-15 Com Dev International Ltd. Systems and methods for decoding automatic identification system signals
US9331774B2 (en) 2010-06-09 2016-05-03 Exactearth Ltd. Systems and methods for segmenting a satellite field of view for detecting radio frequency signals
US9015567B2 (en) 2012-04-12 2015-04-21 Com Dev International Ltd. Methods and systems for consistency checking and anomaly detection in automatic identification system signal data

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742533A (en) * 1987-01-02 1988-05-03 Motorola, Inc. Soft decision digital communication apparatus
DE3910739C3 (de) * 1989-04-03 1996-11-21 Deutsche Forsch Luft Raumfahrt Verfahren zum Verallgemeinern des Viterbi-Algorithmus und Einrichtungen zur Durchführung des Verfahrens
US5208836A (en) * 1989-10-27 1993-05-04 Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. Method for bit detection at the receiver end of differentially coded binary or quaternary PSK signals in differential-coherent demodulation
US5134635A (en) * 1990-07-30 1992-07-28 Motorola, Inc. Convolutional decoder using soft-decision decoding with channel state information
US5214675A (en) * 1991-07-02 1993-05-25 Motorola, Inc. System and method for calculating channel gain and noise variance of a communication channel
US5204874A (en) * 1991-08-28 1993-04-20 Motorola, Inc. Method and apparatus for using orthogonal coding in a communication system
DE9301170U1 (de) * 1993-01-28 1994-06-01 Robert Bosch Gmbh, 70469 Stuttgart Inkohärenter Demodulator mit Viterbi-Detektion
EP0679000A1 (en) * 1994-04-22 1995-10-25 Koninklijke Philips Electronics N.V. Soft quantisation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100385886C (zh) * 2004-11-18 2008-04-30 中国人民解放军理工大学通信工程学院 正交扩频差分相位调制中的差分比特软值输出方法
CN105099609A (zh) * 2014-05-15 2015-11-25 华为技术有限公司 软判决译码的方法和装置
CN105099609B (zh) * 2014-05-15 2018-06-26 华为技术有限公司 软判决译码的方法和装置

Also Published As

Publication number Publication date
US5706313A (en) 1998-01-06
CA2161057A1 (en) 1996-05-02
DE19540652C2 (de) 1999-07-15
ITRM950715A1 (it) 1997-04-30
FI955196A (fi) 1996-05-02
FI955196A0 (fi) 1995-10-31
IT1276582B1 (it) 1997-11-03
CA2161057C (en) 1999-01-19
FR2726420A1 (fr) 1996-05-03
ES2113300A1 (es) 1998-04-16
JPH08214037A (ja) 1996-08-20
AU704779B2 (en) 1999-05-06
GB2294851A (en) 1996-05-08
AU3454395A (en) 1996-05-09
ITRM950715A0 (US06373033-20020416-M00071.png) 1995-10-30
RU2121232C1 (ru) 1998-10-27
BR9505033A (pt) 1997-10-21
DE19540652A1 (de) 1996-05-02
GB2294851B (en) 1999-04-14
GB9521907D0 (en) 1996-01-03
ES2113300B1 (es) 1999-12-16

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