DE69012492T2 - Methode zur Erzeugung von Qualitätsfaktoren für binäre Zahlen erhalten durch Viterbi-Analyse eines Signals. - Google Patents

Methode zur Erzeugung von Qualitätsfaktoren für binäre Zahlen erhalten durch Viterbi-Analyse eines Signals.

Info

Publication number
DE69012492T2
DE69012492T2 DE69012492T DE69012492T DE69012492T2 DE 69012492 T2 DE69012492 T2 DE 69012492T2 DE 69012492 T DE69012492 T DE 69012492T DE 69012492 T DE69012492 T DE 69012492T DE 69012492 T2 DE69012492 T2 DE 69012492T2
Authority
DE
Germany
Prior art keywords
bit
values
calculated
signal
metric values
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.)
Expired - Lifetime
Application number
DE69012492T
Other languages
English (en)
Other versions
DE69012492D1 (de
Inventor
Claes Lennart Hammar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69012492D1 publication Critical patent/DE69012492D1/de
Application granted granted Critical
Publication of DE69012492T2 publication Critical patent/DE69012492T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • 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
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
DE69012492T 1989-09-19 1990-08-30 Methode zur Erzeugung von Qualitätsfaktoren für binäre Zahlen erhalten durch Viterbi-Analyse eines Signals. Expired - Lifetime DE69012492T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903079A SE465697B (sv) 1989-09-19 1989-09-19 Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror

Publications (2)

Publication Number Publication Date
DE69012492D1 DE69012492D1 (de) 1994-10-20
DE69012492T2 true DE69012492T2 (de) 1995-01-26

Family

ID=20376920

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69012492T Expired - Lifetime DE69012492T2 (de) 1989-09-19 1990-08-30 Methode zur Erzeugung von Qualitätsfaktoren für binäre Zahlen erhalten durch Viterbi-Analyse eines Signals.

Country Status (17)

Country Link
US (1) US5099499A (de)
EP (1) EP0419432B1 (de)
JP (1) JPH04501945A (de)
KR (1) KR950012982B1 (de)
AT (1) ATE111661T1 (de)
AU (1) AU626023B2 (de)
CA (1) CA2039708C (de)
DE (1) DE69012492T2 (de)
DK (1) DK0419432T3 (de)
ES (1) ES2058878T3 (de)
FI (1) FI102334B (de)
HK (1) HK6195A (de)
IE (1) IE65265B1 (de)
NO (1) NO301958B1 (de)
NZ (1) NZ235034A (de)
SE (1) SE465697B (de)
WO (1) WO1991004612A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325402A (en) * 1991-04-30 1994-06-28 Nec Corporation Method and arrangement for estimating data sequences transmsitted using Viterbi algorithm
US5303263A (en) * 1991-06-25 1994-04-12 Oki Electric Industry Co., Ltd. Transmission channel characteristic equalizer
JP2876497B2 (ja) * 1991-08-23 1999-03-31 松下電器産業株式会社 誤り訂正符復号化方法およびその装置
JP3120511B2 (ja) * 1991-11-21 2000-12-25 ソニー株式会社 ビタビ復号装置
US5577068A (en) * 1992-06-08 1996-11-19 Ericsson Ge Mobile Communications Inc. Generalized direct update viterbi equalizer
SE470372B (sv) * 1992-06-23 1994-01-31 Ericsson Telefon Ab L M Metod jämte anordning att uppskatta kvaliten vid ramfelsdetektering i mottagaren hos ett radiokommunikationssystem
CN1036689C (zh) * 1993-05-10 1997-12-10 成都华仪电子科技开发中心 压缩维特比译码器
JP2864988B2 (ja) * 1994-06-21 1999-03-08 日本電気株式会社 軟判定信号出力形受信機
FI105514B (fi) * 1994-09-12 2000-08-31 Nokia Mobile Phones Ltd Vastaanottomenetelmä ja vastaanotin
US5586128A (en) * 1994-11-17 1996-12-17 Ericsson Ge Mobile Communications Inc. System for decoding digital data using a variable decision depth
AU706242B2 (en) * 1994-12-12 1999-06-10 Ericsson Inc. Diversity-oriented channel allocation in a mobile communications system
FI98027C (fi) * 1995-01-10 1997-03-25 Nokia Telecommunications Oy Pakettiradiojärjestelmä ja päätelaitteisto pakettiradiojärjestelmää varten
FI950843A (fi) * 1995-02-23 1996-08-24 Nokia Telecommunications Oy Menetelmä yhteyden laadun määrittämiseksi sekä vastaanotin
JP2798021B2 (ja) * 1995-10-25 1998-09-17 日本電気株式会社 信頼度生成方式
US5802116A (en) * 1996-04-04 1998-09-01 Lucent Technologies Inc. Soft decision Viterbi decoding with large constraint lengths
JPH11177641A (ja) 1997-12-10 1999-07-02 Sony Corp 制御情報割当方法、制御方法、送信方法、受信方法、送信装置及び受信装置
US6567475B1 (en) 1998-12-29 2003-05-20 Ericsson Inc. Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols
US6484285B1 (en) 2000-02-07 2002-11-19 Ericsson, Inc. Tailbiting decoder and method
US6625236B1 (en) 2000-02-08 2003-09-23 Ericsson Inc. Methods and systems for decoding symbols by combining matched-filtered samples with hard symbol decisions
JP3855702B2 (ja) 2000-12-15 2006-12-13 ソニー株式会社 再生信号評価装置および方法、再生装置および方法、ならびに、記録装置および方法
US8369459B2 (en) * 2009-03-31 2013-02-05 Telefonaktiebolaget L M Ericsson (Publ) Diversity receivers and methods for relatively-delayed signals

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038636A (en) * 1975-06-18 1977-07-26 Doland George D Multiple decoding system
US4240156A (en) * 1979-03-29 1980-12-16 Doland George D Concatenated error correcting system
GB2088676B (en) * 1980-11-14 1985-09-04 Plessey Co Ltd Transmission systems
JPS5839708A (ja) * 1981-09-01 1983-03-08 Kobe Steel Ltd 熱間静水圧プレス処理法
US4756007A (en) * 1984-03-08 1988-07-05 Codex Corporation Adaptive communication rate modem
CA1260143A (en) * 1986-02-24 1989-09-26 Atsushi Yamashita Path trace viterbi decoder
JPS62233933A (ja) * 1986-04-03 1987-10-14 Toshiba Corp ヴイタビ復号法
US4847871A (en) * 1987-01-28 1989-07-11 Matsushita Electric Industrial Co., Ltd. Viterbi detector for digital signal
US4748626A (en) * 1987-01-28 1988-05-31 Racal Data Communications Inc. Viterbi decoder with reduced number of data move operations
US4888779A (en) * 1988-03-18 1989-12-19 International Business Machines Corporation Matched spectral null trellis codes for partial response channels

Also Published As

Publication number Publication date
KR920702099A (ko) 1992-08-12
US5099499A (en) 1992-03-24
JPH04501945A (ja) 1992-04-02
DE69012492D1 (de) 1994-10-20
AU626023B2 (en) 1992-07-23
DK0419432T3 (da) 1995-01-16
CA2039708A1 (en) 1991-03-20
SE8903079D0 (sv) 1989-09-19
SE8903079L (sv) 1991-03-20
IE903326A1 (en) 1991-04-10
FI102334B1 (fi) 1998-11-13
HK6195A (en) 1995-01-20
WO1991004612A1 (en) 1991-04-04
FI102334B (sv) 1998-11-13
NZ235034A (en) 1992-11-25
IE65265B1 (en) 1995-10-18
ES2058878T3 (es) 1994-11-01
CA2039708C (en) 2000-02-15
NO301958B1 (no) 1997-12-29
ATE111661T1 (de) 1994-09-15
NO911663L (no) 1991-04-26
EP0419432B1 (de) 1994-09-14
SE465697B (sv) 1991-10-14
NO911663D0 (no) 1991-04-26
KR950012982B1 (ko) 1995-10-24
AU6415790A (en) 1991-04-18
FI912177A0 (fi) 1991-05-06
EP0419432A1 (de) 1991-03-27

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