NO20051593L - Signal, interferens og stoyeffektmaling. - Google Patents

Signal, interferens og stoyeffektmaling.

Info

Publication number
NO20051593L
NO20051593L NO20051593A NO20051593A NO20051593L NO 20051593 L NO20051593 L NO 20051593L NO 20051593 A NO20051593 A NO 20051593A NO 20051593 A NO20051593 A NO 20051593A NO 20051593 L NO20051593 L NO 20051593L
Authority
NO
Norway
Prior art keywords
signal
noise
interference
primary
primary signal
Prior art date
Application number
NO20051593A
Other languages
English (en)
Other versions
NO334384B1 (no
Inventor
Ernest C Chen
Chinh Tran
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 NO20051593L publication Critical patent/NO20051593L/no
Publication of NO334384B1 publication Critical patent/NO334384B1/no

Links

Classifications

    • 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
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • 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
    • 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
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • H04B7/18526—Arrangements for data linking, networking or transporting, or for controlling an end to end session
    • 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
    • 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
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • 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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Electromagnetism (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Noise Elimination (AREA)
  • Radio Relay Systems (AREA)

Abstract

Systemer og fremgangsmåter for måling av effektnivåer til primærsignaler og forstyrrende signaler så vel som støy blir presentert, spesielt for satellittsendte signaler. En typisk fremgangsmåte omfatter trinnene med mottagning av et signal som omfatter et primærsignal, et interferenssignal og støy, demodulering av primærsignalet for fjerning av en bærefrekvens, dekoding av primærsignalet for å skaffe tilveie symboler, estimering av et effektnivå på primærsignalet basert på det demodulerte og dekodede primærsignalet. I tillegg kan et ideelt primærsignal genereres ut ifra bærebølgeeffekten og frekvensen og symbolene og trekkes fra det mottatte signalet for å skaffe tilveie støyen og interferenssignalet. Støy- og interferenseffekten blir så estimert ut ifra støyen og interferenssignalet.
NO20051593A 2002-09-06 2005-03-30 Signal, interferens og støyeffektmåling. NO334384B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/236,414 US7822154B2 (en) 2001-04-27 2002-09-06 Signal, interference and noise power measurement
PCT/US2003/026769 WO2004023676A1 (en) 2002-09-06 2003-08-26 Signal, interference and noise power measurement

Publications (2)

Publication Number Publication Date
NO20051593L true NO20051593L (no) 2005-06-03
NO334384B1 NO334384B1 (no) 2014-02-24

Family

ID=31977641

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20051593A NO334384B1 (no) 2002-09-06 2005-03-30 Signal, interferens og støyeffektmåling.

Country Status (11)

Country Link
US (1) US7822154B2 (no)
EP (1) EP1547278B1 (no)
AR (1) AR041158A1 (no)
AT (1) ATE453254T1 (no)
CA (1) CA2495855C (no)
DE (1) DE60330691D1 (no)
ES (1) ES2338547T3 (no)
IL (1) IL166883A (no)
NO (1) NO334384B1 (no)
TW (1) TWI240507B (no)
WO (1) WO2004023676A1 (no)

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