FI102334B1 - Menetelmä signaalin viterbi-analyysin yhteydessä hyvyyslukujen kehittämiseksi analyysissä saatuja binäärisiä lukuja varten - Google Patents

Menetelmä signaalin viterbi-analyysin yhteydessä hyvyyslukujen kehittämiseksi analyysissä saatuja binäärisiä lukuja varten

Info

Publication number
FI102334B1
FI102334B1 FI912177A FI912177A FI102334B1 FI 102334 B1 FI102334 B1 FI 102334B1 FI 912177 A FI912177 A FI 912177A FI 912177 A FI912177 A FI 912177A FI 102334 B1 FI102334 B1 FI 102334B1
Authority
FI
Finland
Prior art keywords
bit
values
calculated
signal
analysis
Prior art date
Application number
FI912177A
Other languages
English (en)
Swedish (sv)
Other versions
FI912177A0 (fi
FI102334B (fi
Inventor
Claes Lennart Hammar
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI912177A0 publication Critical patent/FI912177A0/fi
Application granted granted Critical
Publication of FI102334B1 publication Critical patent/FI102334B1/fi
Publication of FI102334B publication Critical patent/FI102334B/fi

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Mold Materials And Core Materials (AREA)
FI912177A 1989-09-19 1991-05-06 Menetelmä signaalin viterbi-analyysin yhteydessä hyvyyslukujen kehittä miseksi analyysissä saatuja binäärisiä lukuja varten FI102334B (fi)

Applications Claiming Priority (4)

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
SE8903079 1989-09-19
SE9000555 1990-08-30
PCT/SE1990/000555 WO1991004612A1 (en) 1989-09-19 1990-08-30 A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal

Publications (3)

Publication Number Publication Date
FI912177A0 FI912177A0 (fi) 1991-05-06
FI102334B1 true FI102334B1 (fi) 1998-11-13
FI102334B FI102334B (fi) 1998-11-13

Family

ID=20376920

Family Applications (1)

Application Number Title Priority Date Filing Date
FI912177A FI102334B (fi) 1989-09-19 1991-05-06 Menetelmä signaalin viterbi-analyysin yhteydessä hyvyyslukujen kehittä miseksi analyysissä saatuja binäärisiä lukuja varten

Country Status (17)

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

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
JPH11501468A (ja) * 1994-12-12 1999-02-02 エリクソン インコーポレイテッド モービル通信システムにおけるダイバーシティ指向型チャネル割当
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
NZ198844A (en) * 1980-11-14 1984-05-31 Plessey Overseas Digital information transmission: two dimensional code
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
ES2058878T3 (es) 1994-11-01
NZ235034A (en) 1992-11-25
SE465697B (sv) 1991-10-14
CA2039708C (en) 2000-02-15
DE69012492T2 (de) 1995-01-26
IE65265B1 (en) 1995-10-18
NO911663D0 (no) 1991-04-26
IE903326A1 (en) 1991-04-10
HK6195A (en) 1995-01-20
US5099499A (en) 1992-03-24
DE69012492D1 (de) 1994-10-20
EP0419432A1 (en) 1991-03-27
JPH04501945A (ja) 1992-04-02
NO301958B1 (no) 1997-12-29
FI912177A0 (fi) 1991-05-06
WO1991004612A1 (en) 1991-04-04
KR920702099A (ko) 1992-08-12
FI102334B (fi) 1998-11-13
CA2039708A1 (en) 1991-03-20
EP0419432B1 (en) 1994-09-14
KR950012982B1 (ko) 1995-10-24
AU626023B2 (en) 1992-07-23
DK0419432T3 (da) 1995-01-16
NO911663L (no) 1991-04-26
AU6415790A (en) 1991-04-18
SE8903079L (sv) 1991-03-20
ATE111661T1 (de) 1994-09-15
SE8903079D0 (sv) 1989-09-19

Similar Documents

Publication Publication Date Title
FI102334B1 (fi) Menetelmä signaalin viterbi-analyysin yhteydessä hyvyyslukujen kehittämiseksi analyysissä saatuja binäärisiä lukuja varten
CA1161128A (en) Wave-shaping circuit
CA2067669A1 (en) Method and apparatus of estimating data sequence transmitted using viterbi algorithm
DE3486408T2 (de) Verfahren und Vorrichtung zur Dekodierung eines fehlerkorrigierenden Kodes.
JPH06224946A (ja) デジタル信号の復号方法及びその復号回路
EP0113181B1 (en) Digital random error generator arrangements
CA2006487A1 (en) Communication system capable of improving a speech quality by effectively calculating excitation multipulses
US5101441A (en) Method of and device for processing image
EP0663731A3 (en) Method and device for determining the Hamming distance between two digital words with several bits.
JPS6445000A (en) Method and apparatus for determining change in speech parameter in speech signal
EP0328673A4 (en) Digitizing apparatus
GB9723483D0 (en) Mode coding in a binary shape encoding
JPS6462885A (en) Optical disk reproducing device
JPS5511651A (en) Code error correction device
Carden et al. A Spectrally Efficient Communication System: A 16-PSK Trellis Coded Modulation System Utilizing a Quantized Euclidean Decoder
JPS5733500A (en) Information inspecting device of nonvolatile storage circuit
SU995349A1 (ru) Адаптивное устройство дл оценки достоверности прин того сигнала
ATE112403T1 (de) Verfahren zur aufnahme von zeitparametern in der synthesis von logischen schaltungsentwürfen.
JPH046139B2 (fi)
JPS647716A (en) Parallel processing type crc arithmetic circuit
CA2159036A1 (en) Method for Identifying Untestable & Redundant Faults in Sequential Logic Circuits
JPS5447622A (en) Electronic musical instrument
JPH04134758A (ja) ディジタル信号記録方法
FARIDANI Redundancy reduction in recursive linear estimation[Ph. D. Thesis]
JPS5793724A (en) Signal shaping circuit