FR2530095B1 - Circuit de synchronisation pour decodeur viterbi - Google Patents

Circuit de synchronisation pour decodeur viterbi

Info

Publication number
FR2530095B1
FR2530095B1 FR838311533A FR8311533A FR2530095B1 FR 2530095 B1 FR2530095 B1 FR 2530095B1 FR 838311533 A FR838311533 A FR 838311533A FR 8311533 A FR8311533 A FR 8311533A FR 2530095 B1 FR2530095 B1 FR 2530095B1
Authority
FR
France
Prior art keywords
synchronization circuit
viterbi decoder
viterbi
decoder
synchronization
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
FR838311533A
Other languages
English (en)
Other versions
FR2530095A1 (fr
Inventor
Shuji Murakami
Katsuhiro Nakamura
Yukitsuna Furuya
Yutaka Yasuda
Yasuo Hirata
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.)
NEC Corp
Original Assignee
NEC Corp
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
Priority claimed from JP57120946A external-priority patent/JPS5912652A/ja
Priority claimed from JP57120944A external-priority patent/JPS5912650A/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of FR2530095A1 publication Critical patent/FR2530095A1/fr
Application granted granted Critical
Publication of FR2530095B1 publication Critical patent/FR2530095B1/fr
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
    • H03M13/33—Synchronisation based on error coding or decoding

Landscapes

  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)
FR838311533A 1982-07-12 1983-07-11 Circuit de synchronisation pour decodeur viterbi Expired - Lifetime FR2530095B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57120946A JPS5912652A (ja) 1982-07-12 1982-07-12 ビタ−ビ復号器の同期回路
JP57120944A JPS5912650A (ja) 1982-07-12 1982-07-12 ビタ−ビ復号器の同期回路

Publications (2)

Publication Number Publication Date
FR2530095A1 FR2530095A1 (fr) 1984-01-13
FR2530095B1 true FR2530095B1 (fr) 1990-09-28

Family

ID=26458430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR838311533A Expired - Lifetime FR2530095B1 (fr) 1982-07-12 1983-07-11 Circuit de synchronisation pour decodeur viterbi

Country Status (3)

Country Link
US (1) US4527279A (fr)
FR (1) FR2530095B1 (fr)
GB (1) GB2123655B (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8327084D0 (en) * 1983-10-11 1983-11-09 Gordon J Error correction decoder apparatus
US4641327A (en) * 1985-07-09 1987-02-03 Codex Corporation Frame synchronization in trellis-coded communication systems
US4802174A (en) * 1986-02-19 1989-01-31 Sony Corporation Viterbi decoder with detection of synchronous or asynchronous states
JPS62193323A (ja) * 1986-02-19 1987-08-25 Sony Corp ヴイタビ復号装置
JPH0691520B2 (ja) * 1986-03-24 1994-11-14 日本電気株式会社 フレ−ム同期はずれ検出方式
GB8609711D0 (en) * 1986-04-21 1986-05-29 Clark A P Channel estimation & detection
US4945549A (en) * 1986-11-13 1990-07-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Trellis coded modulation for transmission over fading mobile satellite channel
JPS6490621A (en) * 1987-09-30 1989-04-07 Nec Corp Decoder
US5208816A (en) * 1989-08-18 1993-05-04 At&T Bell Laboratories Generalized viterbi decoding algorithms
CA2020899C (fr) * 1989-08-18 1995-09-05 Nambirajan Seshadri Algorithmes de decodage viterbi generalises
US5050191A (en) * 1989-10-24 1991-09-17 Hughes Aircraft Company Synchronization detector using path metric and branch metric values of a Viterbi decoder
JP2594683B2 (ja) * 1990-05-18 1997-03-26 三菱電機株式会社 ヴィタビ・デコーダ
US5048056A (en) * 1990-06-08 1991-09-10 General Datacomm, Inc. Method and apparatus for mapping an eight dimensional constellation of a convolutionally coded communication system
US5113412A (en) * 1990-06-08 1992-05-12 General Datacomm, Inc. Method and apparatus for mapping an eight dimensional constellation of a convolutionally coded communication system
JP2522142B2 (ja) * 1992-12-25 1996-08-07 日本電気株式会社 ビタビ復号器の同期検出方式
JP2768621B2 (ja) * 1993-06-25 1998-06-25 沖電気工業株式会社 分散送信される畳み込み符号の復号装置
US5586150A (en) * 1993-11-24 1996-12-17 Rajupandaram K. Balasubramaniam Method and apparatus for symbol synchronization in multi-level digital FM radio
GB2309867A (en) * 1996-01-30 1997-08-06 Sony Corp Reliability data in decoding apparatus
US5991914A (en) * 1996-02-15 1999-11-23 Nec Corporation Clock recovery using maximum likelihood sequence estimation
GB2316585A (en) * 1996-08-23 1998-02-25 Daewoo Electronics Co Ltd Synchronization method and apparatus in Viterbi decoder
US6252911B1 (en) * 1997-06-11 2001-06-26 Texas Instruments Incorporated Trellis shaping for PCM modems
KR100243213B1 (ko) * 1997-06-14 2000-02-01 윤종용 제로상태평가량을이용한비터비복호데이터의품질평가장치
JP4079134B2 (ja) * 2004-09-03 2008-04-23 ソニー株式会社 データ受信装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665396A (en) * 1968-10-11 1972-05-23 Codex Corp Sequential decoding
US3789359A (en) * 1972-10-04 1974-01-29 Harris Intertype Corp Synchronism indicator for a convolutional decoder
US3872432A (en) * 1974-04-10 1975-03-18 Itt Synchronization circuit for a viterbi decoder
GB1572622A (en) * 1977-03-29 1980-07-30 Secr Defence Code synchronising apparatus
US4346473A (en) * 1980-02-26 1982-08-24 Harris Corporation Error correction coding method and apparatus for multilevel signaling
GB2086193B (en) * 1980-10-07 1984-05-16 Standard Telephones Cables Ltd Digital transmission system
GB2087198B (en) * 1980-10-28 1985-02-27 Plessey Co Ltd Data decoding
DE3066889D1 (en) * 1980-12-23 1984-04-12 Ibm Method of transmitting binary data sequences and arrangement for enabling the rapid determination of the end of a transmitted binary data sequence
JPS57155857A (en) * 1981-03-23 1982-09-27 Kokusai Denshin Denwa Co Ltd <Kdd> Maximum likelihood method and apparatus for error

Also Published As

Publication number Publication date
GB2123655B (en) 1986-01-22
FR2530095A1 (fr) 1984-01-13
GB8318596D0 (en) 1983-08-10
US4527279A (en) 1985-07-02
GB2123655A (en) 1984-02-01

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