BR9813696A - Processo e aparelho para determinar caracterìsticas de componentes de um canal de comunicação - Google Patents

Processo e aparelho para determinar caracterìsticas de componentes de um canal de comunicação

Info

Publication number
BR9813696A
BR9813696A BR9813696-8A BR9813696A BR9813696A BR 9813696 A BR9813696 A BR 9813696A BR 9813696 A BR9813696 A BR 9813696A BR 9813696 A BR9813696 A BR 9813696A
Authority
BR
Brazil
Prior art keywords
communication channel
signal
components
carrier signal
determining characteristics
Prior art date
Application number
BR9813696-8A
Other languages
English (en)
Other versions
BR9813696B1 (pt
Inventor
Gerhard Bethscheider
Guy Harles
Original Assignee
Soc Europ Des Satellites 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 Soc Europ Des Satellites Sa filed Critical Soc Europ Des Satellites Sa
Publication of BR9813696A publication Critical patent/BR9813696A/pt
Publication of BR9813696B1 publication Critical patent/BR9813696B1/pt

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
    • 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
    • H04B7/18519—Operations control, administration or maintenance
    • 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
    • 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
    • H04B7/18513—Transmission in a satellite or space-based system

Abstract

"PROCESSO E APARELHO PARA DETERMINAR CARACTERìSTICAS DE COMPONENTES DE UM CANAL DE COMUNICAçãO" Para determinar características de componentes de um canal de comunicação, por exemplo de um transponder em um satélite de comunicação, um sinal de portadora pura f(t) é modulado com um sinal de pseudo-ruído PN(t) e transmitido através do canal de comunicação em um nível abaixo do nível de um sinal útil que é transmitido via o canal de comunicação simultaneamente. O sinal recebido s'(t) é correlacionado com mesmo sinal de pseudo-ruído PN(t) para obter um sinal de portadora recuperada f(t). Ambos o sinal de portadora pura f(t) e o sinal de portadora recuperada f(t) podem ser usados para determinar as características desejadas. Visto que o sinal de portadora pura modulada com PN s(t) é transmitido em um baixo nível, é possível realizar medições sem desligar o sinal útil.
BRPI9813696-8A 1997-12-18 1998-12-17 processo e aparelho para determinar caracterìsticas de componentes de um canal de comunicação. BR9813696B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97122421A EP0930734B1 (en) 1997-12-18 1997-12-18 Method and apparatus for determining characterics of components of a communication channel under load
PCT/EP1998/008307 WO1999033204A1 (en) 1997-12-18 1998-12-17 Method and apparatus for determining characteristics of components of a communication channel under load

Publications (2)

Publication Number Publication Date
BR9813696A true BR9813696A (pt) 2000-10-10
BR9813696B1 BR9813696B1 (pt) 2012-04-17

Family

ID=8227831

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9813696-8A BR9813696B1 (pt) 1997-12-18 1998-12-17 processo e aparelho para determinar caracterìsticas de componentes de um canal de comunicação.

Country Status (21)

Country Link
US (1) US6535546B1 (pt)
EP (3) EP0930734B1 (pt)
JP (1) JP3554275B2 (pt)
KR (1) KR100417168B1 (pt)
CN (2) CN1327637C (pt)
AR (1) AR017914A1 (pt)
AT (2) ATE250303T1 (pt)
AU (1) AU739074B2 (pt)
BR (1) BR9813696B1 (pt)
CA (1) CA2315065C (pt)
DE (1) DE69711408T2 (pt)
DK (2) DK0967744T3 (pt)
EA (1) EA002140B1 (pt)
ES (1) ES2175256T3 (pt)
HK (2) HK1023237A1 (pt)
IL (1) IL136766A (pt)
NO (1) NO320227B1 (pt)
PL (1) PL192542B1 (pt)
PT (1) PT930734E (pt)
TR (1) TR200001785T2 (pt)
WO (1) WO1999033204A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1186126T3 (da) 1999-06-18 2006-01-02 Ses Astra Sa Fremgangsmåde og apparat til bestemmelse af karakteristikker af en kommunikationskanals komponenter
EP1083682A3 (en) * 1999-09-10 2003-07-02 TRW Inc. Built-in self test (BIST) approach for regenerative data transmission system
GB0028728D0 (en) * 2000-11-24 2001-01-10 Nokia Mobile Phones Ltd Component measures
US7035617B2 (en) * 2001-01-29 2006-04-25 U.S. Monolithics, L.L.C. High power block upconverter
EP1274188B1 (en) * 2001-07-06 2006-10-18 Marconi Communications GmbH Method for monitoring a redundant transmitter
WO2003030416A1 (en) * 2001-10-01 2003-04-10 Summitek Instruments, Inc. Portable device used to measure passive intermodulation in radio frequency communication systems
US8514829B2 (en) 2007-10-05 2013-08-20 Qualcomm Incorporated Center frequency control for wireless communication
US8872333B2 (en) 2008-02-14 2014-10-28 Viasat, Inc. System and method for integrated waveguide packaging
US20100197257A1 (en) * 2009-02-04 2010-08-05 Qualcomm Incorporated Adjustable receive filter responsive to frequency spectrum information
US8650605B2 (en) 2012-04-26 2014-02-11 Arcom Digital, Llc Low-cost leakage detector for a digital HFC network
US8456530B2 (en) 2009-08-18 2013-06-04 Arcom Digital, Llc Methods and apparatus for detecting and locating leakage of digital signals
AU2011218651B2 (en) 2010-08-31 2014-10-09 Viasat, Inc. Leadframe package with integrated partial waveguide interface
FR2995478B1 (fr) * 2012-09-07 2014-09-26 Thales Sa Methode pour la caracterisation d'une antenne de transmission d'un satellite en orbite et systeme associe
US9933950B2 (en) 2015-01-16 2018-04-03 Sandisk Technologies Llc Storage operation interrupt
LU101119B1 (en) * 2019-02-12 2020-08-12 Université Du Luxembourg Method and device for adaptive in-orbit testing of a satellite transponder
CN113815909B (zh) * 2021-09-09 2023-10-27 中国人民解放军63920部队 对等模式组合构型航天器的上行链路确定方法及装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4279018A (en) * 1979-03-06 1981-07-14 Nasa PN Lock indicator for dithered PN code tracking loop
JPS6032555B2 (ja) * 1979-09-28 1985-07-29 株式会社日立製作所 レ−ザビ−ム溶接回転ヘツド
US4637017A (en) * 1984-05-21 1987-01-13 Communications Satellite Corporation Monitoring of input backoff in time division multiple access communication satellites
DE3644175A1 (de) * 1986-12-23 1988-07-14 Messerschmitt Boelkow Blohm Verfahren zur uebertragung von daten mit satelliten
US4962507A (en) * 1989-09-29 1990-10-09 Hughes Aircraft Company Feed forward spread spectrum signal processor
US5036523A (en) * 1989-10-03 1991-07-30 Geostar Corporation Automatic frequency control of satellite transmitted spread spectrum signals
US5559828A (en) * 1994-05-16 1996-09-24 Armstrong; John T. Transmitted reference spread spectrum communication using a single carrier with two mutually orthogonal modulated basis vectors
US5546421A (en) * 1994-08-22 1996-08-13 Martin Marietta Corp. Self compensating spread-spectrum hybrid
US5731993A (en) * 1996-09-09 1998-03-24 Hughes Electronics Nonlinear amplifier operating point determination system and method
US5943331A (en) * 1997-02-28 1999-08-24 Interdigital Technology Corporation Orthogonal code synchronization system and method for spread spectrum CDMA communications
EP0929164B1 (en) * 1997-12-18 2000-03-15 Société Européenne des Satellites Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel

Also Published As

Publication number Publication date
DE69711408D1 (de) 2002-05-02
DK0967744T3 (da) 2003-12-22
JP3554275B2 (ja) 2004-08-18
EP1385284A2 (en) 2004-01-28
DK0930734T3 (da) 2002-07-29
HK1023237A1 (en) 2000-09-01
EP0930734B1 (en) 2002-03-27
PL341200A1 (en) 2001-03-26
HK1062236A1 (en) 2004-10-21
CN1149762C (zh) 2004-05-12
EP1385284A3 (en) 2004-06-23
IL136766A0 (en) 2001-06-14
BR9813696B1 (pt) 2012-04-17
EA200000670A1 (ru) 2000-12-25
CN1505278A (zh) 2004-06-16
AR017914A1 (es) 2001-10-24
CA2315065C (en) 2004-02-24
ATE250303T1 (de) 2003-10-15
IL136766A (en) 2005-03-20
WO1999033204B1 (en) 1999-08-12
NO20003157L (no) 2000-08-11
AU739074B2 (en) 2001-10-04
EP0967744A1 (en) 1999-12-29
ATE215287T1 (de) 2002-04-15
US6535546B1 (en) 2003-03-18
EP0967744B1 (en) 2003-09-17
NO20003157D0 (no) 2000-06-16
EA002140B1 (ru) 2001-12-24
NO320227B1 (no) 2005-11-14
EP0930734A1 (en) 1999-07-21
PL192542B1 (pl) 2006-11-30
ES2175256T3 (es) 2002-11-16
CN1327637C (zh) 2007-07-18
CN1284223A (zh) 2001-02-14
DE69711408T2 (de) 2002-11-21
KR100417168B1 (ko) 2004-02-05
JP2001527319A (ja) 2001-12-25
CA2315065A1 (en) 1999-07-01
KR20010024769A (ko) 2001-03-26
TR200001785T2 (tr) 2000-11-21
WO1999033204A1 (en) 1999-07-01
PT930734E (pt) 2002-09-30
AU2414999A (en) 1999-07-12

Similar Documents

Publication Publication Date Title
BR9813696A (pt) Processo e aparelho para determinar caracterìsticas de componentes de um canal de comunicação
BR9911303A (pt) Aparelho de computação de posição móvel, e, processo para aquisição de um satélite de posicionamento
CA2134901A1 (en) A cdma communications method and system
ES2163014T3 (es) Transmisor de datos, receptor de datos y controlador de transmision.
EP1223434A3 (en) Combined GPS positioning system and communications system utilizing shared circuitry
BR0210679A (pt) Sistema e aparelho para realizar comunicações de difusão ampla e de difusão local
EP0918333B8 (en) Signal transmission system using PRD method, receiver circuit for use in the signal transmission system, and semiconductor memory device to which the signal transmission system is applied
DK0789074T3 (da) Hudækvivalent, der indeholder langerhanske celler
BR9910742A (pt) Processo, arranjo para uso em um terminal móvel e com um sistema de telecomunicações móvel, sistema de telecomunicação móvel e arranjo de relógio compartilhado
BR9915288A (pt) Processos de comunicação em um sistema de comunicações sem fios, para operar uma estação sem fios, e para operar um sistema de comunicação sem fios, estação sem fios, e, sistema de comunicações sem fios.
BR9912978A (pt) Dispositivo e método de radiofrequência para alocação de frequência múltipla
BR9803430B1 (pt) "processo de gerenciamento de sonda receptor rake para comunicação de espectro difuso."
AU6520596A (en) Apparatus and method for synchronizing base sites individually in a communication system
CA2186251A1 (en) Stock locator system using gps translator
MX9405036A (es) Un metodo para determinar transferencias de transmision en recursos decomunicacion.
EP0829980A3 (en) Optical communications system
BR9812853A (pt) Sistema catalizador, processo para preparar uma poliolefina, e, uso de um sistema catalisador
BR9808385A (pt) Sistema de recebimento de difusão compreendendo um computador e um decodificador
MXPA99001575A (es) Aditivos reologicos que tienen agrupamientos de hidrogeno activo para sistemas no acuosos y sistemas no acuosos que contienen tales aditivos reologicos liquidos.
DK0845842T3 (da) Optisk system med én eller flere stabiliserede lasersignalkilder
WO2001063410A3 (en) System and method for implementing a project facility
IL128500A0 (en) Substituted 1,2,3,4-tetrahydro-2-dibenzofuranamines and 2-aminocyclohepta (b) benzofurans
BR9713569A (pt) Processo para a redução de corantes de enxofre e de cuba.
BR9807324A (pt) Sistema de comunicações por satélite, processo de troca de sinais, e, aparelho de comunicação.
ATE222443T1 (de) Mobilfunkgerät sowie system zur funkkommunikation unter verwendung mindestens zweier funksysteme

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.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 15A ANUIDADE. PAGAR RESTAURACAO.

B24E Patent annual fee: resolution cancelled

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 2256 DE 22/04/2014.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 17.04.2022