SE465697B - 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 - Google Patents
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 siffrorInfo
- Publication number
- SE465697B SE465697B SE8903079A SE8903079A SE465697B SE 465697 B SE465697 B SE 465697B SE 8903079 A SE8903079 A SE 8903079A SE 8903079 A SE8903079 A SE 8903079A SE 465697 B SE465697 B SE 465697B
- Authority
- SE
- Sweden
- Prior art keywords
- metric
- calculated
- bit
- values
- bit sequence
- Prior art date
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)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Mold Materials And Core Materials (AREA)
- Dc Digital Transmission (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Priority Applications (17)
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 |
NZ235034A NZ235034A (en) | 1989-09-19 | 1990-08-23 | Determining quality factors for binary digits in viterbi-analysis of a signal |
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 |
DE69012492T DE69012492T2 (de) | 1989-09-19 | 1990-08-30 | Methode zur Erzeugung von Qualitätsfaktoren für binäre Zahlen erhalten durch Viterbi-Analyse eines Signals. |
DK90850291.7T DK0419432T3 (da) | 1989-09-19 | 1990-08-30 | Fremgangsmåde til generering af kvalitetsfaktorer for binær cifre, som er frembragt ved viterbianalysen af et signal |
KR1019910700456A KR950012982B1 (ko) | 1989-09-19 | 1990-08-30 | 신호를 비터비분석허여 얻어진 이진디지트에 대해 양호도를 발생하는 방법 |
AU64157/90A AU626023B2 (en) | 1989-09-19 | 1990-08-30 | A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
JP2513338A JPH04501945A (ja) | 1989-09-19 | 1990-08-30 | 信号のヴィタビ分析で得られた2進数値の品質係数を発生させる方法 |
CA002039708A CA2039708C (en) | 1989-09-19 | 1990-08-30 | Method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
EP90850291A EP0419432B1 (en) | 1989-09-19 | 1990-08-30 | A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
ES90850291T ES2058878T3 (es) | 1989-09-19 | 1990-08-30 | Un metodo de generar factores de calidad para digitos binarios obtenidos en el analisis de viterbi de una señal. |
AT90850291T ATE111661T1 (de) | 1989-09-19 | 1990-08-30 | Methode zur erzeugung von qualitätsfaktoren für binäre zahlen erhalten durch viterbi-analyse eines signals. |
IE332690A IE65265B1 (en) | 1989-09-19 | 1990-09-13 | A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
US07/583,309 US5099499A (en) | 1989-09-19 | 1990-09-17 | Method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
NO911663A NO301958B1 (no) | 1989-09-19 | 1991-04-26 | Fremgangsmåte for generering av kvalitetsfaktorer for binære sifre som oppnås ved viterbi-analyse av et signal |
FI912177A FI102334B (sv) | 1989-09-19 | 1991-05-06 | Sätt att vid viterbi-analys av en signal alstra godhetstal för vid ana lysen erhållna binära siffror |
HK6195A HK6195A (en) | 1989-09-19 | 1995-01-12 | A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
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 (3)
Publication Number | Publication Date |
---|---|
SE8903079D0 SE8903079D0 (sv) | 1989-09-19 |
SE8903079L SE8903079L (sv) | 1991-03-20 |
SE465697B true SE465697B (sv) | 1991-10-14 |
Family
ID=20376920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Country Status (17)
Country | Link |
---|---|
US (1) | US5099499A (da) |
EP (1) | EP0419432B1 (da) |
JP (1) | JPH04501945A (da) |
KR (1) | KR950012982B1 (da) |
AT (1) | ATE111661T1 (da) |
AU (1) | AU626023B2 (da) |
CA (1) | CA2039708C (da) |
DE (1) | DE69012492T2 (da) |
DK (1) | DK0419432T3 (da) |
ES (1) | ES2058878T3 (da) |
FI (1) | FI102334B (da) |
HK (1) | HK6195A (da) |
IE (1) | IE65265B1 (da) |
NO (1) | NO301958B1 (da) |
NZ (1) | NZ235034A (da) |
SE (1) | SE465697B (da) |
WO (1) | WO1991004612A1 (da) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2067669C (en) * | 1991-04-30 | 1997-10-28 | Akihisa Ushirokawa | Method and apparatus of estimating data sequence transmitted 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 |
CN1092876C (zh) * | 1994-12-12 | 2002-10-16 | 艾利森公司 | 移动通信系统中的定向分集信道分配 |
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)
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 |
US4748626A (en) * | 1987-01-28 | 1988-05-31 | Racal Data Communications Inc. | Viterbi decoder with reduced number of data move operations |
US4847871A (en) * | 1987-01-28 | 1989-07-11 | Matsushita Electric Industrial Co., Ltd. | Viterbi detector for digital signal |
US4888779A (en) * | 1988-03-18 | 1989-12-19 | International Business Machines Corporation | Matched spectral null trellis codes for partial response channels |
-
1989
- 1989-09-19 SE SE8903079A patent/SE465697B/sv not_active IP Right Cessation
-
1990
- 1990-08-23 NZ NZ235034A patent/NZ235034A/en unknown
- 1990-08-30 CA CA002039708A patent/CA2039708C/en not_active Expired - Lifetime
- 1990-08-30 DK DK90850291.7T patent/DK0419432T3/da active
- 1990-08-30 AU AU64157/90A patent/AU626023B2/en not_active Ceased
- 1990-08-30 AT AT90850291T patent/ATE111661T1/de not_active IP Right Cessation
- 1990-08-30 KR KR1019910700456A patent/KR950012982B1/ko not_active IP Right Cessation
- 1990-08-30 JP JP2513338A patent/JPH04501945A/ja active Pending
- 1990-08-30 EP EP90850291A patent/EP0419432B1/en not_active Expired - Lifetime
- 1990-08-30 DE DE69012492T patent/DE69012492T2/de not_active Expired - Lifetime
- 1990-08-30 WO PCT/SE1990/000555 patent/WO1991004612A1/en active IP Right Grant
- 1990-08-30 ES ES90850291T patent/ES2058878T3/es not_active Expired - Lifetime
- 1990-09-13 IE IE332690A patent/IE65265B1/en not_active IP Right Cessation
- 1990-09-17 US US07/583,309 patent/US5099499A/en not_active Expired - Lifetime
-
1991
- 1991-04-26 NO NO911663A patent/NO301958B1/no not_active IP Right Cessation
- 1991-05-06 FI FI912177A patent/FI102334B/sv active
-
1995
- 1995-01-12 HK HK6195A patent/HK6195A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IE65265B1 (en) | 1995-10-18 |
US5099499A (en) | 1992-03-24 |
KR920702099A (ko) | 1992-08-12 |
EP0419432B1 (en) | 1994-09-14 |
WO1991004612A1 (en) | 1991-04-04 |
SE8903079L (sv) | 1991-03-20 |
ATE111661T1 (de) | 1994-09-15 |
NO911663D0 (no) | 1991-04-26 |
DK0419432T3 (da) | 1995-01-16 |
FI102334B1 (fi) | 1998-11-13 |
CA2039708A1 (en) | 1991-03-20 |
NO911663L (no) | 1991-04-26 |
AU6415790A (en) | 1991-04-18 |
FI102334B (sv) | 1998-11-13 |
CA2039708C (en) | 2000-02-15 |
JPH04501945A (ja) | 1992-04-02 |
FI912177A0 (fi) | 1991-05-06 |
KR950012982B1 (ko) | 1995-10-24 |
DE69012492T2 (de) | 1995-01-26 |
SE8903079D0 (sv) | 1989-09-19 |
IE903326A1 (en) | 1991-04-10 |
ES2058878T3 (es) | 1994-11-01 |
EP0419432A1 (en) | 1991-03-27 |
NO301958B1 (no) | 1997-12-29 |
HK6195A (en) | 1995-01-20 |
AU626023B2 (en) | 1992-07-23 |
NZ235034A (en) | 1992-11-25 |
DE69012492D1 (de) | 1994-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE465697B (sv) | 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 | |
US5301209A (en) | Multidimensional trellis-coded modulation for fading channels | |
US6597743B1 (en) | Reduced search symbol estimation algorithm | |
US4534040A (en) | Method and apparatus for coding a binary signal | |
JP3187036B2 (ja) | デジタル伝送系、レシーバ装置、デジタル伝送系用の等化器 | |
US5400362A (en) | Double sided slot traversing decoding for time division multiple access (TDMA) radio systems | |
US4742533A (en) | Soft decision digital communication apparatus | |
CN1171869A (zh) | 利用可变判决深度译码数字数据的系统 | |
KR100924526B1 (ko) | 부분적 코히어런트 시스템을 위한 부호화 적용 변조기법 | |
US5185747A (en) | Data symbol estimation | |
EP0872066A1 (en) | A method for determining connection quality, and a receiver | |
US5588028A (en) | Simplified trellis decoder | |
EP0827309B1 (en) | Coded modulation using repetition and tree codes | |
US5502736A (en) | Viterbi decoder for decoding error-correcting encoded information symbol string | |
US6031474A (en) | Half rate coded modulation schemes for Rayleigh fading channels | |
JPH0832633A (ja) | トレリス復号器 | |
EP1326358B1 (en) | Scaling of Viterbi decoding based on channel and location information | |
Carden | A Quantized Euclidean Soft-Decision Maximum Likelihood Sequence Decoder: A Concept for Spectrally Efficient TM Systems | |
EP0430413B1 (en) | Data symbol estimation | |
CN101316154A (zh) | 发送装置、接收装置、无线电通信系统及其方法 | |
JP3576653B2 (ja) | 符号化変調装置 | |
Carden et al. | A Spectrally Efficient Communication System: A 16-PSK Trellis Coded Modulation System Utilizing a Quantized Euclidean Decoder | |
Weber | Convolutional Codes With a Frequency-Shift-Keying Modem | |
JPH06177778A (ja) | サブセット判定用ビタビ復号器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8903079-5 Format of ref document f/p: F |
|
NUG | Patent has lapsed |
Ref document number: 8903079-5 Format of ref document f/p: F |