BR9813708A - Processo e aparelho para determinar um ponto de operação de um amplicifador não linear de um canal de comunicação. - Google Patents
Processo e aparelho para determinar um ponto de operação de um amplicifador não linear de um canal de comunicação.Info
- Publication number
- BR9813708A BR9813708A BR9813708-5A BR9813708A BR9813708A BR 9813708 A BR9813708 A BR 9813708A BR 9813708 A BR9813708 A BR 9813708A BR 9813708 A BR9813708 A BR 9813708A
- Authority
- BR
- Brazil
- Prior art keywords
- communication channel
- input signal
- linear amplifier
- signal
- determining
- Prior art date
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)
Abstract
"PROCESSO E APARELHO PARA DETERMINAR UM PONTO DE OPERAçãO DE UM AMPLIFICADOR NãO LINEAR DE UM CANAL DE COMUNICAçãO" Para determinar o ponto de operação de um amplificador não linear (2) de um canal de comunicação (1), por exemplo de um transponder em um satélite de comunicação, um primeiro sinal de entrada (I~ 1~) é transmitido através do canal de comunicação (1) em um nível de potência (P~ 11~) que excita o amplificador não linear (2) em um modo de operação não linear. Em adição, um segundo sinal de entrada (i~ 2~) é transmitido através do canal de comunicação (1) simultaneamente com o primeiro sinal de entrada (I~ 1~). O segundo sinal de entrada (i~ 2~) é transmitido em um nível abaixo do nível do primeiro sinal de entrada (I~ 1~). Se a contribuição do segundo sinal de entrada (i~ 2~) à entrada total do amplificador não linear é pequena, o ponto de operação do amplificador não linear é determinado quase somente pelo primeiro sinal de entrada. Portanto, a potência de saída (P~ 02~) correspondendo ao segundo sinal (i~ 2~) é determinada mais fortemente pela potência de entrada (P~ 11~) do primeiro sinal (I~ 1~). O ponto de operação (I~ 1~, P~ 0~),dito amplificador não linear (2) é determinado na base de um sinal de saída (0~ 2~) de dito canal de comunicação (1) correspondendo a dito segundo final (i~ 2~).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97122420A EP0929164B1 (en) | 1997-12-18 | 1997-12-18 | Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 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 |
|---|---|
| BR9813708A true BR9813708A (pt) | 2000-10-10 |
| BR9813708B1 BR9813708B1 (pt) | 2012-04-17 |
Family
ID=8227830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI9813708-5A BR9813708B1 (pt) | 1997-12-18 | 1998-12-17 | processo e aparelho para determinar um ponto de operação de um amplificador não linear de um canal de comunicação. |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US6275678B1 (pt) |
| EP (1) | EP0929164B1 (pt) |
| JP (1) | JP3639531B2 (pt) |
| KR (1) | KR100609315B1 (pt) |
| CN (1) | CN1136682C (pt) |
| AR (1) | AR008353A1 (pt) |
| AT (1) | ATE190785T1 (pt) |
| AU (1) | AU741481B2 (pt) |
| BR (1) | BR9813708B1 (pt) |
| CA (1) | CA2315053C (pt) |
| DE (1) | DE69701473T2 (pt) |
| DK (1) | DK0929164T3 (pt) |
| EA (1) | EA002214B1 (pt) |
| ES (1) | ES2145552T3 (pt) |
| GR (1) | GR3033472T3 (pt) |
| HK (1) | HK1021455A1 (pt) |
| ID (1) | ID24961A (pt) |
| IL (1) | IL136765A (pt) |
| NO (1) | NO323273B1 (pt) |
| PL (1) | PL190186B1 (pt) |
| PT (1) | PT929164E (pt) |
| TR (1) | TR200001780T2 (pt) |
| WO (1) | WO1999033203A1 (pt) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK0930734T3 (da) * | 1997-12-18 | 2002-07-29 | Soc Europ Des Satellites Sa | Fremgangsmåde og apparat til bestemmelse af karakteristika for komponenter i en kommunikationskanal i drift |
| JP4197869B2 (ja) * | 1999-06-18 | 2008-12-17 | エスエーエス−アストラ エス ア | 通信チャネルの機器の特性を決定するための方法及び装置 |
| US7184473B2 (en) * | 2001-04-27 | 2007-02-27 | The Directv Group, Inc. | Equalizers for layered modulated and other signals |
| US7423987B2 (en) | 2001-04-27 | 2008-09-09 | The Directv Group, Inc. | Feeder link configurations to support layered modulation for digital signals |
| US7151807B2 (en) | 2001-04-27 | 2006-12-19 | The Directv Group, Inc. | Fast acquisition of timing and carrier frequency from received signal |
| US7583728B2 (en) | 2002-10-25 | 2009-09-01 | The Directv Group, Inc. | Equalizers for layered modulated and other signals |
| US7471735B2 (en) * | 2001-04-27 | 2008-12-30 | The Directv Group, Inc. | Maximizing power and spectral efficiencies for layered and conventional modulations |
| US7822154B2 (en) | 2001-04-27 | 2010-10-26 | The Directv Group, Inc. | Signal, interference and noise power 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 |
| US7173981B1 (en) | 2001-04-27 | 2007-02-06 | The Directv Group, Inc. | Dual layer signal processing in a layered modulation digital signal system |
| US8005035B2 (en) | 2001-04-27 | 2011-08-23 | The Directv Group, Inc. | Online output multiplexer filter measurement |
| US7184489B2 (en) * | 2001-04-27 | 2007-02-27 | The Directv Group, Inc. | Optimization technique for layered modulation |
| US7209524B2 (en) | 2001-04-27 | 2007-04-24 | The Directv Group, Inc. | Layered modulation for digital signals |
| US7778365B2 (en) | 2001-04-27 | 2010-08-17 | The Directv Group, Inc. | Satellite TWTA on-line non-linearity measurement |
| 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 |
| AU2003301717A1 (en) * | 2002-10-25 | 2004-05-25 | The Directv Group, Inc. | Lower complexity layered modulation signal processor |
| DE60331766D1 (de) * | 2002-10-25 | 2010-04-29 | Directv Group Inc | Schätzen des arbeitspunkts eines nichtlinearenausbreitungswellenrührenverstärkers |
| ATE491296T1 (de) * | 2002-10-25 | 2010-12-15 | Directv Group Inc | Verfahren und vorrichtung zum anpassen von trägerleistungsanforderungen gemäss verfügbarkeit in geschichteten modulationssystemen |
| 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 |
| US20050175119A1 (en) * | 2004-02-09 | 2005-08-11 | Worley David A. | Forward link quality link monitoring apparatus and method |
| US8463204B2 (en) | 2007-12-21 | 2013-06-11 | Astrium Limited | Multiport amplifiers in communications satellites |
| US8767805B2 (en) | 2010-05-17 | 2014-07-01 | Inradios Integrated Radio Solutions Gmbh | Assembly and method for the parallel processing of data streams by means of satellite communication links |
| KR101364831B1 (ko) * | 2010-11-08 | 2014-02-20 | 한국전자통신연구원 | 텔레메트리 데이터의 통계적 분석을 이용하여 위성중계기의 상태를 감시하는 장치 및 방법 |
| KR101983700B1 (ko) * | 2016-01-25 | 2019-05-29 | 발렌스 세미컨덕터 엘티디. | 상태 시그널링을 위한 알려진 데이터의 이용 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| 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 |
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| US5940025A (en) * | 1997-09-15 | 1999-08-17 | Raytheon Company | Noise cancellation method and apparatus |
-
1997
- 1997-12-18 ES ES97122420T patent/ES2145552T3/es not_active Expired - Lifetime
- 1997-12-18 DE DE69701473T patent/DE69701473T2/de not_active Expired - Lifetime
- 1997-12-18 EP EP97122420A patent/EP0929164B1/en not_active Expired - Lifetime
- 1997-12-18 DK DK97122420T patent/DK0929164T3/da active
- 1997-12-18 AT AT97122420T patent/ATE190785T1/de active
- 1997-12-18 PT PT97122420T patent/PT929164E/pt unknown
-
1998
- 1998-12-17 CA CA002315053A patent/CA2315053C/en not_active Expired - Lifetime
- 1998-12-17 ID IDW20001365A patent/ID24961A/id unknown
- 1998-12-17 WO PCT/EP1998/008306 patent/WO1999033203A1/en active IP Right Grant
- 1998-12-17 BR BRPI9813708-5A patent/BR9813708B1/pt not_active IP Right Cessation
- 1998-12-17 CN CNB988130351A patent/CN1136682C/zh not_active Expired - Lifetime
- 1998-12-17 PL PL98341217A patent/PL190186B1/pl unknown
- 1998-12-17 TR TR2000/01780T patent/TR200001780T2/xx unknown
- 1998-12-17 JP JP2000525993A patent/JP3639531B2/ja not_active Expired - Lifetime
- 1998-12-17 US US09/213,557 patent/US6275678B1/en not_active Expired - Lifetime
- 1998-12-17 AU AU25134/99A patent/AU741481B2/en not_active Expired
- 1998-12-17 EA EA200000669A patent/EA002214B1/ru not_active IP Right Cessation
- 1998-12-17 IL IL13676598A patent/IL136765A/xx not_active IP Right Cessation
- 1998-12-17 KR KR1020007006749A patent/KR100609315B1/ko not_active IP Right Cessation
- 1998-12-18 AR ARP980106507A patent/AR008353A1/es active IP Right Grant
-
2000
- 2000-01-12 HK HK00100189A patent/HK1021455A1/xx not_active IP Right Cessation
- 2000-05-22 GR GR20000401168T patent/GR3033472T3/el unknown
- 2000-06-16 NO NO20003158A patent/NO323273B1/no not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B25D | Requested change of name of applicant approved | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 17/04/2012, OBSERVADAS AS CONDICOES LEGAIS. |
|
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 17.04.2022 |