ATE481784T1 - Online-nichtlinearitätsmessung von satelliten- wanderfeldröhrenverstärkern - Google Patents

Online-nichtlinearitätsmessung von satelliten- wanderfeldröhrenverstärkern

Info

Publication number
ATE481784T1
ATE481784T1 AT03757359T AT03757359T ATE481784T1 AT E481784 T1 ATE481784 T1 AT E481784T1 AT 03757359 T AT03757359 T AT 03757359T AT 03757359 T AT03757359 T AT 03757359T AT E481784 T1 ATE481784 T1 AT E481784T1
Authority
AT
Austria
Prior art keywords
signal
satellite
online
tube amplifier
field tube
Prior art date
Application number
AT03757359T
Other languages
English (en)
Inventor
Ernest Chen
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
Application granted granted Critical
Publication of ATE481784T1 publication Critical patent/ATE481784T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
    • H03F3/58—Amplifiers using transit-time effect in tubes or semiconductor devices using travelling-wave tubes
    • 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
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/393—A measuring circuit being coupled to the output of an amplifier
    • 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)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Astronomy & Astrophysics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Radio Relay Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
AT03757359T 2002-06-07 2003-06-05 Online-nichtlinearitätsmessung von satelliten- wanderfeldröhrenverstärkern ATE481784T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/165,710 US7778365B2 (en) 2001-04-27 2002-06-07 Satellite TWTA on-line non-linearity measurement
PCT/US2003/017781 WO2003105375A1 (en) 2002-06-07 2003-06-05 Satellite travelling-wave tube amplifier on-line non-linearity measurement

Publications (1)

Publication Number Publication Date
ATE481784T1 true ATE481784T1 (de) 2010-10-15

Family

ID=29732084

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03757359T ATE481784T1 (de) 2002-06-07 2003-06-05 Online-nichtlinearitätsmessung von satelliten- wanderfeldröhrenverstärkern

Country Status (10)

Country Link
US (1) US7778365B2 (de)
EP (1) EP1518342B1 (de)
AT (1) ATE481784T1 (de)
CA (1) CA2487817C (de)
DE (1) DE60334217D1 (de)
ES (1) ES2352840T3 (de)
IL (2) IL165228A0 (de)
NO (1) NO334347B1 (de)
TW (1) TWI239778B (de)
WO (1) WO2003105375A1 (de)

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US7822154B2 (en) 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US7173981B1 (en) * 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7583728B2 (en) 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7151807B2 (en) * 2001-04-27 2006-12-19 The Directv Group, Inc. Fast acquisition of timing and carrier frequency from received signal
US8005035B2 (en) 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7423987B2 (en) 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
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ES2398213T3 (es) 2002-10-25 2013-03-14 The Directv Group, Inc. Procesador de señal de modulación en capas de baja complejidad
US7230480B2 (en) * 2002-10-25 2007-06-12 The Directv Group, Inc. Estimating the operating point on a non-linear traveling wave tube amplifier
AU2004218611B2 (en) 2003-10-10 2007-03-08 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7502429B2 (en) * 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
FR2904711B1 (fr) * 2006-08-04 2008-12-19 Commissariat Energie Atomique Procede de compensation numerique de non linearites dans un systeme de communication et dispositif recepteur
EP2478645A4 (de) * 2009-09-15 2017-08-02 Miteq, Inc. Messung einer satellitenlinearität von der erde aus mithilfe eines zyklusgepulsten niedrigleistungs-mikrowellensignals
JP6937215B2 (ja) * 2017-10-11 2021-09-22 日本放送協会 増幅器特性推定装置、補償器、送信装置、及びプログラム
JP7203657B2 (ja) * 2019-03-27 2023-01-13 日本放送協会 増幅器特性推定装置、補償器、送信装置、及びプログラム
CN113726405B (zh) * 2021-07-30 2023-03-14 中国电子科技集团公司第三十八研究所 一种Ka频段多址链路建模仿真系统

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TWI239778B (en) 2005-09-11
TW200405733A (en) 2004-04-01
ES2352840T3 (es) 2011-02-23
WO2003105375A1 (en) 2003-12-18
CA2487817A1 (en) 2003-12-18
IL165228A (en) 2011-02-28
EP1518342A1 (de) 2005-03-30
US20020158619A1 (en) 2002-10-31
NO20040539L (no) 2004-04-06
EP1518342B1 (de) 2010-09-15
CA2487817C (en) 2009-12-15
DE60334217D1 (de) 2010-10-28
IL165228A0 (en) 2005-12-18
US7778365B2 (en) 2010-08-17

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