ES2058878T3 - Un metodo de generar factores de calidad para digitos binarios obtenidos en el analisis de viterbi de una señal. - Google Patents
Un metodo de generar factores de calidad para digitos binarios obtenidos en el analisis de viterbi de una señal.Info
- Publication number
- ES2058878T3 ES2058878T3 ES90850291T ES90850291T ES2058878T3 ES 2058878 T3 ES2058878 T3 ES 2058878T3 ES 90850291 T ES90850291 T ES 90850291T ES 90850291 T ES90850291 T ES 90850291T ES 2058878 T3 ES2058878 T3 ES 2058878T3
- Authority
- ES
- Spain
- 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
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
Abstract
SE TRANSMITE UNA SEÑAL A UN RECEPTOR Y SE DIGITALIZA EN PUNTOS DE SEÑALES (S1). ESTOS PUNTOS SON ANALIZADOS (VITERBI) EN UN ANALIZADOR CON UNA MEMORIA DE PASO (PM) QUE TIENE UN NUMERO DESEADO DE ESTADOS (00, 01, 10, 11) CON CELULAS DE MEMORIA (MC). SE GENERAN SECUENCIAS DE BIT, CORRESPONDIENTES A LOS PUNTOS DE SEÑALES S1), Y SE CALCULAN VALORES METRICOS FINALES (M0 + G1, M1, M3) PARA LAS SECUENCIAS DE BIT. EN UNA POSICION INDICADA DE BIT, LAS SECUENCIAS MEJORES DE BIT, CON EL VALOR METRICO (M2) FINAL MAS PEQUEÑO, TIENE UN "1", QUE ES EL VALOR DECIDIDO DE BIT. SE GENERA UNA SECUENCIA DE BIT ALTERNATIVOS, QUE ES LA MEJOR SECUENCIA CON EL VALOR METRICO (M0 + G0) FINAL MAS PEQUEÑO, CON LA CONDICION DE QUE EN LA POSICION INDICADA DE BIT HAYA UN BIT CON EL VALOR OPUESTO DE BIT, UN "0". LA DIFERENCIA ENTRE AMBOS VALORES METRICOS FINALES (M0 + G0 OR DE CALIDAD PARA EL VALOR "1" DE BIT DECIDIDO. EL CALCULO SE HACE EN TRES FASES. EN UN PUNTO DE TIEMPOS SE HAN CALCULADO VALORES METRICOS (M0, M1, M2, M3) PARA LOS DIFERENTES ESTADOS (00, 01, 10, 11). PARA UN PUNTO DE SEÑALES EN LA POSICION DE BIT INDICADA, SE CALCULAN VALORES METRICOS ADITIVOS ( (0) ).
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 (1)
Publication Number | Publication Date |
---|---|
ES2058878T3 true ES2058878T3 (es) | 1994-11-01 |
Family
ID=20376920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90850291T Expired - Lifetime 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. |
Country Status (17)
Country | Link |
---|---|
US (1) | US5099499A (es) |
EP (1) | EP0419432B1 (es) |
JP (1) | JPH04501945A (es) |
KR (1) | KR950012982B1 (es) |
AT (1) | ATE111661T1 (es) |
AU (1) | AU626023B2 (es) |
CA (1) | CA2039708C (es) |
DE (1) | DE69012492T2 (es) |
DK (1) | DK0419432T3 (es) |
ES (1) | ES2058878T3 (es) |
FI (1) | FI102334B1 (es) |
HK (1) | HK6195A (es) |
IE (1) | IE65265B1 (es) |
NO (1) | NO301958B1 (es) |
NZ (1) | NZ235034A (es) |
SE (1) | SE465697B (es) |
WO (1) | WO1991004612A1 (es) |
Families Citing this family (21)
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 |
WO1996019049A1 (en) * | 1994-12-12 | 1996-06-20 | 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)
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 DK DK90850291.7T patent/DK0419432T3/da active
- 1990-08-30 AT AT90850291T patent/ATE111661T1/de not_active IP Right Cessation
- 1990-08-30 AU AU64157/90A patent/AU626023B2/en not_active Ceased
- 1990-08-30 CA CA002039708A patent/CA2039708C/en not_active Expired - Lifetime
- 1990-08-30 KR KR1019910700456A patent/KR950012982B1/ko not_active IP Right Cessation
- 1990-08-30 WO PCT/SE1990/000555 patent/WO1991004612A1/en active IP Right Grant
- 1990-08-30 EP EP90850291A patent/EP0419432B1/en not_active Expired - Lifetime
- 1990-08-30 JP JP2513338A patent/JPH04501945A/ja active Pending
- 1990-08-30 ES ES90850291T patent/ES2058878T3/es not_active Expired - Lifetime
- 1990-08-30 DE DE69012492T patent/DE69012492T2/de 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/FI102334B1/fi active
-
1995
- 1995-01-12 HK HK6195A patent/HK6195A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0419432A1 (en) | 1991-03-27 |
KR950012982B1 (ko) | 1995-10-24 |
IE903326A1 (en) | 1991-04-10 |
NO911663D0 (no) | 1991-04-26 |
SE465697B (sv) | 1991-10-14 |
AU6415790A (en) | 1991-04-18 |
FI102334B (sv) | 1998-11-13 |
JPH04501945A (ja) | 1992-04-02 |
ATE111661T1 (de) | 1994-09-15 |
EP0419432B1 (en) | 1994-09-14 |
NZ235034A (en) | 1992-11-25 |
FI102334B1 (fi) | 1998-11-13 |
DE69012492D1 (de) | 1994-10-20 |
AU626023B2 (en) | 1992-07-23 |
DK0419432T3 (da) | 1995-01-16 |
CA2039708C (en) | 2000-02-15 |
HK6195A (en) | 1995-01-20 |
US5099499A (en) | 1992-03-24 |
KR920702099A (ko) | 1992-08-12 |
SE8903079D0 (sv) | 1989-09-19 |
CA2039708A1 (en) | 1991-03-20 |
WO1991004612A1 (en) | 1991-04-04 |
NO301958B1 (no) | 1997-12-29 |
SE8903079L (sv) | 1991-03-20 |
IE65265B1 (en) | 1995-10-18 |
DE69012492T2 (de) | 1995-01-26 |
FI912177A0 (fi) | 1991-05-06 |
NO911663L (no) | 1991-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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