HK1004359A1 - Reception of orthogonal frequency division multiplexed signals - Google Patents

Reception of orthogonal frequency division multiplexed signals

Info

Publication number
HK1004359A1
HK1004359A1 HK98103457A HK98103457A HK1004359A1 HK 1004359 A1 HK1004359 A1 HK 1004359A1 HK 98103457 A HK98103457 A HK 98103457A HK 98103457 A HK98103457 A HK 98103457A HK 1004359 A1 HK1004359 A1 HK 1004359A1
Authority
HK
Hong Kong
Prior art keywords
samples
demodulated
pct
values
complex
Prior art date
Application number
HK98103457A
Other languages
English (en)
Inventor
Jeffrey John Gledhill
Santosh Vasudev Anikhindi
Peter Anthony Avon
Original Assignee
Nds Ltd
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 Nds Ltd filed Critical Nds Ltd
Publication of HK1004359A1 publication Critical patent/HK1004359A1/xx

Links

Classifications

    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • 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
    • H04L27/2602—Signal structure
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H04L27/2679—Decision-aided
    • 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 encoded video stream 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
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/0803—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division using frequency interleaving, e.g. with precision offset

Landscapes

  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Transmission System (AREA)
  • Control Of Electric Motors In General (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Noise Elimination (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Optical Communication System (AREA)
HK98103457A 1990-09-14 1998-04-24 Reception of orthogonal frequency division multiplexed signals HK1004359A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909020170A GB9020170D0 (en) 1990-09-14 1990-09-14 Orthogonal frequency division multiplexing
PCT/GB1991/001571 WO1992005646A1 (fr) 1990-09-14 1991-09-13 Reception de signaux multiplexes de division de frequence orthogonale (ofdm)

Publications (1)

Publication Number Publication Date
HK1004359A1 true HK1004359A1 (en) 1998-11-20

Family

ID=10682242

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98103457A HK1004359A1 (en) 1990-09-14 1998-04-24 Reception of orthogonal frequency division multiplexed signals

Country Status (12)

Country Link
US (1) US5345440A (fr)
EP (1) EP0548205B1 (fr)
JP (1) JPH06501357A (fr)
KR (1) KR100199467B1 (fr)
AT (1) ATE160475T1 (fr)
AU (1) AU646298B2 (fr)
CA (1) CA2085728A1 (fr)
DE (1) DE69128252T2 (fr)
FI (1) FI931017A0 (fr)
GB (1) GB9020170D0 (fr)
HK (1) HK1004359A1 (fr)
WO (1) WO1992005646A1 (fr)

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US5675572A (en) * 1993-07-28 1997-10-07 Sony Corporation Orthogonal frequency division multiplex modulation apparatus and orthogonal frequency division multiplex demodulation apparatus
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KR100334188B1 (ko) * 1993-12-03 2002-11-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 디지탈통신시스템및이시스템에이용하기위한수신기
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SE9400116L (sv) * 1994-01-18 1995-03-27 Telia Ab Förfarande och arrangemang för synkronisering vid OFDM- modulering
WO1995020848A1 (fr) * 1994-01-28 1995-08-03 Philips Electronics N.V. Systeme de transmission numerique
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Also Published As

Publication number Publication date
ATE160475T1 (de) 1997-12-15
DE69128252D1 (de) 1998-01-02
FI931017A (fi) 1993-03-08
EP0548205A1 (fr) 1993-06-30
JPH06501357A (ja) 1994-02-10
WO1992005646A1 (fr) 1992-04-02
AU8613691A (en) 1992-04-15
GB9020170D0 (en) 1990-10-24
AU646298B2 (en) 1994-02-17
DE69128252T2 (de) 1998-05-20
EP0548205B1 (fr) 1997-11-19
CA2085728A1 (fr) 1991-10-17
US5345440A (en) 1994-09-06
KR100199467B1 (ko) 1999-06-15
FI931017A0 (fi) 1993-03-08

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