NO20052402L - Amplitude og fasetilpasning for lagdelt modulasjonsmottak - Google Patents

Amplitude og fasetilpasning for lagdelt modulasjonsmottak

Info

Publication number
NO20052402L
NO20052402L NO20052402A NO20052402A NO20052402L NO 20052402 L NO20052402 L NO 20052402L NO 20052402 A NO20052402 A NO 20052402A NO 20052402 A NO20052402 A NO 20052402A NO 20052402 L NO20052402 L NO 20052402L
Authority
NO
Norway
Prior art keywords
upper layer
signal
layered modulation
amplitude
ideal
Prior art date
Application number
NO20052402A
Other languages
English (en)
Other versions
NO334197B1 (no
NO20052402D0 (no
Inventor
Ernest C Chen
Jeng-Hong Chen
Kenneth Schum
Joungheon Oh
Original Assignee
Directv Group Inc
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 Directv Group Inc filed Critical Directv Group Inc
Publication of NO20052402D0 publication Critical patent/NO20052402D0/no
Publication of NO20052402L publication Critical patent/NO20052402L/no
Publication of NO334197B1 publication Critical patent/NO334197B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/183—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0061—Closed loops remodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Et apparat og fremgangsmåte for å ta imot lagdelte modulasjonssignaler er fremlagt. En typisk fremgangsmåte inkluderer å ta imot et lagdelt modulasjonssignal (602) som inkluderer et øvre lagsignal og et lavere lagsignal, demodulasjon og dekoding (604) av det øvre lagsignalet fra det mottatte, lagdelte modulasjonssignalet, og å estimere en øvre lagamplitudefaktor og en øvre lagfasefaktor (618) fra det mottatte, lagdelte modulasjonssignalet. Et vesentlig ideelt øvre lagsignal er rekonstruert fra det demodulerte og dekodede øvre lagsignalet som inkluderer å tilpasse en ideell amplitude og en ideell fase (620) ved å anvende den øvre lagamplitudefaktoren og den øvre lagfasefaktoren på det rekonstruerte ideelle øvre lagsignalet. Til slutt vil det rekonstruerte ideelle øvre lagsignalet bli trukket fra det mottatte, lagdelte modulasjonssignalet (622) for å produsere det lavere lagsignalet for prosessering.
NO20052402A 2002-10-25 2005-05-13 Amplitude og fasetilpasning for lagdelt modulasjonsmottak. NO334197B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42133202P 2002-10-25 2002-10-25
PCT/US2003/031199 WO2004040806A1 (en) 2001-04-27 2003-10-03 Amplitude and phase matching for layered modulation reception

Publications (3)

Publication Number Publication Date
NO20052402D0 NO20052402D0 (no) 2005-05-13
NO20052402L true NO20052402L (no) 2005-07-07
NO334197B1 NO334197B1 (no) 2014-01-13

Family

ID=34312081

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052402A NO334197B1 (no) 2002-10-25 2005-05-13 Amplitude og fasetilpasning for lagdelt modulasjonsmottak.

Country Status (10)

Country Link
EP (1) EP1561291B1 (no)
AR (1) AR046476A1 (no)
AT (1) ATE424682T1 (no)
AU (1) AU2003275393A1 (no)
CA (1) CA2502867C (no)
DE (1) DE60326483D1 (no)
ES (1) ES2321184T3 (no)
NO (1) NO334197B1 (no)
TW (1) TWI260892B (no)
WO (1) WO2004040806A1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8503582B2 (en) 2010-09-27 2013-08-06 Technische Universitat Berlin Receiver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800573A (en) * 1987-11-19 1989-01-24 American Telephone And Telegraph Company Equalization arrangement
US5016273A (en) * 1989-01-09 1991-05-14 At&E Corporation Dual communication mode video tape recorder
US5206886A (en) * 1990-04-16 1993-04-27 Telebit Corporation Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in mulicarrier modems
US6040800A (en) * 1997-04-22 2000-03-21 Ericsson Inc. Systems and methods for locating remote terminals in radiocommunication systems
US5966412A (en) * 1997-06-30 1999-10-12 Thomson Consumer Electronics, Inc. Apparatus and method for processing a Quadrature Amplitude Modulated (QAM) signal
EP1335512B1 (en) * 2002-02-05 2007-02-28 Hughes Electronics Corporation Preprocessing of the superimposed signals in a layered modulation digital transmission scheme to use legacy receivers

Also Published As

Publication number Publication date
CA2502867C (en) 2010-12-21
TW200420055A (en) 2004-10-01
DE60326483D1 (de) 2009-04-16
TWI260892B (en) 2006-08-21
WO2004040806A1 (en) 2004-05-13
ATE424682T1 (de) 2009-03-15
AR046476A1 (es) 2005-12-14
NO334197B1 (no) 2014-01-13
EP1561291B1 (en) 2009-03-04
EP1561291A4 (en) 2008-02-13
ES2321184T3 (es) 2009-06-03
EP1561291A1 (en) 2005-08-10
NO20052402D0 (no) 2005-05-13
CA2502867A1 (en) 2004-05-13
AU2003275393A1 (en) 2004-05-25

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