FR2776151B1 - Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm - Google Patents

Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm

Info

Publication number
FR2776151B1
FR2776151B1 FR9802894A FR9802894A FR2776151B1 FR 2776151 B1 FR2776151 B1 FR 2776151B1 FR 9802894 A FR9802894 A FR 9802894A FR 9802894 A FR9802894 A FR 9802894A FR 2776151 B1 FR2776151 B1 FR 2776151B1
Authority
FR
France
Prior art keywords
decoding
transmission channel
ofdm modulation
terrestrial broadcasting
digital terrestrial
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 - Fee Related
Application number
FR9802894A
Other languages
English (en)
Other versions
FR2776151A1 (fr
Inventor
Jacques Galbrun
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.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
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 STMicroelectronics SA filed Critical STMicroelectronics SA
Priority to FR9802894A priority Critical patent/FR2776151B1/fr
Priority to US09/264,916 priority patent/US6426981B1/en
Publication of FR2776151A1 publication Critical patent/FR2776151A1/fr
Application granted granted Critical
Publication of FR2776151B1 publication Critical patent/FR2776151B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • 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
    • H04L1/0047—Decoding adapted to other signal detection operation
    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/208—Arrangements for detecting or preventing errors in the information received using signal quality detector involving signal re-encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Error Detection And Correction (AREA)
FR9802894A 1998-03-10 1998-03-10 Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm Expired - Fee Related FR2776151B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9802894A FR2776151B1 (fr) 1998-03-10 1998-03-10 Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm
US09/264,916 US6426981B1 (en) 1998-03-10 1999-03-09 Process and device for decoding a radio frequency transmission channel, especially for a terrestrial digital broadcast using OFDM modulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9802894A FR2776151B1 (fr) 1998-03-10 1998-03-10 Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm

Publications (2)

Publication Number Publication Date
FR2776151A1 FR2776151A1 (fr) 1999-09-17
FR2776151B1 true FR2776151B1 (fr) 2000-04-14

Family

ID=9523848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9802894A Expired - Fee Related FR2776151B1 (fr) 1998-03-10 1998-03-10 Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm

Country Status (2)

Country Link
US (1) US6426981B1 (fr)
FR (1) FR2776151B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002023844A2 (fr) 2000-09-12 2002-03-21 Siemens Aktiengesellschaft Procede et recepteur a multiplexage frequentiel optique pour reduire l'influence de perturbations harmoniques sur des systemes de transmission a multiplexage frequentiel optique
US20030084283A1 (en) * 2001-09-04 2003-05-01 Pixton Jeffrey Seth Digital broadcast system
US20040223449A1 (en) * 2003-05-08 2004-11-11 Yih-Ming Tsuie Mode detection for OFDM signals

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321705A (en) * 1990-11-21 1994-06-14 Motorola, Inc. Error detection system
US5278871A (en) * 1992-03-19 1994-01-11 Motorola, Inc. Method and apparatus for estimating signal weighting parameters in a receiver
US5408503A (en) * 1992-07-03 1995-04-18 U.S. Philips Corporation Adaptive viterbi detector
EP0620668B1 (fr) * 1993-04-15 2000-06-07 Samsung Electronics Co., Ltd. Elimination d'erreurs de phase à 90 et 180 dans des récepteurs MAQ
KR0157546B1 (ko) * 1995-01-19 1998-11-16 김광호 디지탈 전송신호의 복원 장치
US5574751A (en) * 1995-04-24 1996-11-12 Motorola, Inc. Method for a soft-decision modulation system
GB9521739D0 (en) * 1995-10-24 1996-01-03 Nat Transcommunications Ltd Decoding carriers encoded using orthogonal frequency division multiplexing
GB9522241D0 (en) * 1995-10-31 1996-01-03 Nat Transcommunications Ltd Method and apparatus for differentially decoding signals
US6424685B1 (en) * 1997-11-03 2002-07-23 Harris Corporation Polar computation of branch metrics for TCM

Also Published As

Publication number Publication date
FR2776151A1 (fr) 1999-09-17
US6426981B1 (en) 2002-07-30

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20071130