IL136765A - Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel - Google Patents

Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel

Info

Publication number
IL136765A
IL136765A IL13676598A IL13676598A IL136765A IL 136765 A IL136765 A IL 136765A IL 13676598 A IL13676598 A IL 13676598A IL 13676598 A IL13676598 A IL 13676598A IL 136765 A IL136765 A IL 136765A
Authority
IL
Israel
Prior art keywords
determining
communication channel
operating point
linear amplifier
amplifier
Prior art date
Application number
IL13676598A
Other languages
English (en)
Other versions
IL136765A0 (en
Original Assignee
Ses Astra 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 Ses Astra Sa filed Critical Ses Astra Sa
Publication of IL136765A0 publication Critical patent/IL136765A0/xx
Publication of IL136765A publication Critical patent/IL136765A/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)
  • Amplifiers (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
IL13676598A 1997-12-18 1998-12-17 Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel IL136765A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97122420A EP0929164B1 (de) 1997-12-18 1997-12-18 Verfahren und Vorrichtung zur Festlegung eines Arbeitspunktes eines nichtlinearen Verstärkers in einem Übertragungskanal
PCT/EP1998/008306 WO1999033203A1 (en) 1997-12-18 1998-12-17 Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel

Publications (2)

Publication Number Publication Date
IL136765A0 IL136765A0 (en) 2001-06-14
IL136765A true IL136765A (en) 2005-03-20

Family

ID=8227830

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13676598A IL136765A (en) 1997-12-18 1998-12-17 Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel

Country Status (22)

Country Link
US (1) US6275678B1 (de)
EP (1) EP0929164B1 (de)
JP (1) JP3639531B2 (de)
KR (1) KR100609315B1 (de)
CN (1) CN1136682C (de)
AR (1) AR008353A1 (de)
AT (1) ATE190785T1 (de)
AU (1) AU741481B2 (de)
BR (1) BR9813708B1 (de)
CA (1) CA2315053C (de)
DE (1) DE69701473T2 (de)
DK (1) DK0929164T3 (de)
EA (1) EA002214B1 (de)
ES (1) ES2145552T3 (de)
GR (1) GR3033472T3 (de)
ID (1) ID24961A (de)
IL (1) IL136765A (de)
NO (1) NO323273B1 (de)
PL (1) PL190186B1 (de)
PT (1) PT929164E (de)
TR (1) TR200001780T2 (de)
WO (1) WO1999033203A1 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0930734B1 (de) * 1997-12-18 2002-03-27 Société Européenne des Satellites S.A. Verfahren und Apparat zur Bestimmung der Kennwerte von Komponenten eines Kommunikationskanals unter Last
EA004457B1 (ru) * 1999-06-18 2004-04-29 Сосьете Эропеен Де Сателит С.А. Способ и устройство определения характеристик компонент канала связи
US7209524B2 (en) 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7502430B2 (en) 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7778365B2 (en) 2001-04-27 2010-08-17 The Directv Group, Inc. Satellite TWTA on-line non-linearity measurement
US7245671B1 (en) 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
US7423987B2 (en) 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7173981B1 (en) 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7184473B2 (en) 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7184489B2 (en) 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7583728B2 (en) 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7822154B2 (en) 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US7483505B2 (en) 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
US8005035B2 (en) 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7639759B2 (en) 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
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
KR20030024285A (ko) * 2001-09-17 2003-03-26 한국전자통신연구원 위성통신 시스템에서의 고출력 증폭기 동작점 판단 장치및 그 방법
AU2003280499A1 (en) 2002-07-01 2004-01-19 The Directv Group, Inc. Improving hierarchical 8psk performance
AR040395A1 (es) 2002-07-03 2005-03-30 Hughes Electronics Corp Metodo y aparato para modulacion por capas
CA2503530C (en) 2002-10-25 2009-12-22 The Directv Group, Inc. Lower complexity layered modulation signal processor
US7529312B2 (en) 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
US7474710B2 (en) 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
ES2357568T3 (es) 2002-10-25 2011-04-27 The Directv Group, Inc. Método y aparato para adaptar los requisitos de potencia de la portadora de acuerdo con la disponibilidad en sistema de modulación en capas.
US7463676B2 (en) 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
US7230480B2 (en) 2002-10-25 2007-06-12 The Directv Group, Inc. Estimating the operating point on a non-linear traveling wave tube amplifier
KR100488347B1 (ko) 2002-10-31 2005-05-10 삼성전자주식회사 실록산계 수지 및 이를 이용한 반도체 층간 절연막의형성방법
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
US20050175119A1 (en) * 2004-02-09 2005-08-11 Worley David A. Forward link quality link monitoring apparatus and method
WO2009080752A1 (en) 2007-12-21 2009-07-02 Astrium Limited Multiport amplifiers in communications satellites
EP2660996B1 (de) * 2010-05-17 2014-07-09 INRADIOS Integrated radio solutions GmbH Anordnung und Verfahren zum Test einer Satellitenkommunikationsverbindung
KR101364831B1 (ko) * 2010-11-08 2014-02-20 한국전자통신연구원 텔레메트리 데이터의 통계적 분석을 이용하여 위성중계기의 상태를 감시하는 장치 및 방법
EP3381141B1 (de) * 2016-01-25 2020-10-14 Valens Semiconductor Ltd. Verwendung von bekannten daten zur statussignalisierung

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168398A (en) * 1976-11-10 1979-09-18 Nippon Electric Co., Ltd. Initial acquisition signal detection system for TDMA satellite communication
DE3333418C2 (de) * 1983-09-16 1986-05-22 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur Bestimmung der Sättigungsleistung eines Satellitenleistungsverstärkers
US4637017A (en) * 1984-05-21 1987-01-13 Communications Satellite Corporation Monitoring of input backoff in time division multiple access communication satellites
US4896369A (en) * 1984-12-28 1990-01-23 Harris Corporation Optimal satellite TWT power allocation process for achieving requested availability and maintaining stability in ALPC-type networks
JPH03139027A (ja) * 1989-10-24 1991-06-13 Fujitsu Ltd 衛星通信における送信電力制御方式
FR2665602A1 (fr) * 1990-08-03 1992-02-07 Europ Rech Electr Lab Procede de protection contre le desembrouillage non autorise d'emissions de television embrouillees et dispositif de mise en óoeuvre.
US5455960A (en) * 1992-01-16 1995-10-03 Harris Corporation Low-power access technique for certain satellite transponders
EP0721166A1 (de) * 1995-01-03 1996-07-10 International Business Machines Corporation Verfahren und System zur Entwurfsprüfung von logischen Einheiten und zur Verwendung in verschiedenen Umgebungen
US5635870A (en) * 1995-08-15 1997-06-03 David; Michael Efficient amplification techniques for non-linear amplifiers
US5745839A (en) * 1995-09-01 1998-04-28 Cd Radio, Inc. Satellite multiple access system with distortion cancellation and compression compensation
US5623227A (en) * 1995-10-17 1997-04-22 Motorola, Inc. Amplifier circuit and method of controlling an amplifier for use in a radio frequency communication system
SE510569C2 (sv) * 1996-05-31 1999-06-07 Allgon Ab Repeterare med variabel bandbredd
JP2806890B2 (ja) * 1996-06-27 1998-09-30 静岡日本電気株式会社 無線選択呼出受信機
JPH1022756A (ja) * 1996-07-04 1998-01-23 Mitsubishi Electric Corp 無線送信機およびその送信制御方法
US5731993A (en) * 1996-09-09 1998-03-24 Hughes Electronics Nonlinear amplifier operating point determination system and method
US5940025A (en) * 1997-09-15 1999-08-17 Raytheon Company Noise cancellation method and apparatus

Also Published As

Publication number Publication date
ID24961A (id) 2000-08-31
PT929164E (pt) 2000-06-30
NO20003158D0 (no) 2000-06-16
DE69701473T2 (de) 2000-08-03
JP3639531B2 (ja) 2005-04-20
NO20003158L (no) 2000-08-16
AU741481B2 (en) 2001-11-29
HK1021455A1 (en) 2000-06-09
DE69701473D1 (de) 2000-04-20
CN1136682C (zh) 2004-01-28
TR200001780T2 (tr) 2000-11-21
AR008353A1 (es) 1999-12-29
EA200000669A1 (ru) 2000-12-25
CN1285984A (zh) 2001-02-28
BR9813708A (pt) 2000-10-10
EA002214B1 (ru) 2002-02-28
KR20010015883A (ko) 2001-02-26
EP0929164B1 (de) 2000-03-15
US6275678B1 (en) 2001-08-14
KR100609315B1 (ko) 2006-08-03
JP2001527318A (ja) 2001-12-25
IL136765A0 (en) 2001-06-14
CA2315053A1 (en) 1999-07-01
CA2315053C (en) 2005-02-08
WO1999033203A1 (en) 1999-07-01
AU2513499A (en) 1999-07-12
GR3033472T3 (en) 2000-09-29
NO323273B1 (no) 2007-02-19
BR9813708B1 (pt) 2012-04-17
PL341217A1 (en) 2001-03-26
ES2145552T3 (es) 2000-07-01
ATE190785T1 (de) 2000-04-15
EP0929164A1 (de) 1999-07-14
PL190186B1 (pl) 2005-11-30
DK0929164T3 (da) 2000-08-07

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