IT8548177A1 - Perfezionamento nei sistemi di telecomunicazioni via satellite utilizzante la tecnica s s tora - Google Patents

Perfezionamento nei sistemi di telecomunicazioni via satellite utilizzante la tecnica s s tora

Info

Publication number
IT8548177A1
IT8548177A1 IT1985A48177A IT4817785A IT8548177A1 IT 8548177 A1 IT8548177 A1 IT 8548177A1 IT 1985A48177 A IT1985A48177 A IT 1985A48177A IT 4817785 A IT4817785 A IT 4817785A IT 8548177 A1 IT8548177 A1 IT 8548177A1
Authority
IT
Italy
Prior art keywords
tora
improvement
technique
systems via
telecommunications systems
Prior art date
Application number
IT1985A48177A
Other languages
English (en)
Other versions
IT1182741B (it
IT8548177A0 (it
Original Assignee
Selenia Spazio Spa
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 Selenia Spazio Spa filed Critical Selenia Spazio Spa
Priority to IT48177/85A priority Critical patent/IT1182741B/it
Publication of IT8548177A0 publication Critical patent/IT8548177A0/it
Priority to US07/026,611 priority patent/US4763129A/en
Priority to PCT/IT1986/000041 priority patent/WO1986007512A1/en
Priority to EP86903544A priority patent/EP0226609A1/en
Publication of IT8548177A1 publication Critical patent/IT8548177A1/it
Application granted granted Critical
Publication of IT1182741B publication Critical patent/IT1182741B/it

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
    • H04B7/204—Multiple access
    • H04B7/212—Time-division multiple access [TDMA]
    • H04B7/2125—Synchronisation
IT48177/85A 1985-06-06 1985-06-06 Perfezionamento nei sistemi di telecomunicazioni via satellite utilizzanti la tecnica ss-tdna IT1182741B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT48177/85A IT1182741B (it) 1985-06-06 1985-06-06 Perfezionamento nei sistemi di telecomunicazioni via satellite utilizzanti la tecnica ss-tdna
US07/026,611 US4763129A (en) 1985-06-06 1986-06-05 SS-TDMA technique telecommunication satellite systems
PCT/IT1986/000041 WO1986007512A1 (en) 1985-06-06 1986-06-05 Improvement to ss-tdma technique telecommunication satellite systems
EP86903544A EP0226609A1 (en) 1985-06-06 1986-06-05 Improvement to ss-tdma technique telecommunication satellite systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48177/85A IT1182741B (it) 1985-06-06 1985-06-06 Perfezionamento nei sistemi di telecomunicazioni via satellite utilizzanti la tecnica ss-tdna

Publications (3)

Publication Number Publication Date
IT8548177A0 IT8548177A0 (it) 1985-06-06
IT8548177A1 true IT8548177A1 (it) 1986-12-06
IT1182741B IT1182741B (it) 1987-10-05

Family

ID=11265028

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48177/85A IT1182741B (it) 1985-06-06 1985-06-06 Perfezionamento nei sistemi di telecomunicazioni via satellite utilizzanti la tecnica ss-tdna

Country Status (4)

Country Link
US (1) US4763129A (it)
EP (1) EP0226609A1 (it)
IT (1) IT1182741B (it)
WO (1) WO1986007512A1 (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1334292C (en) * 1986-10-06 1995-02-07 Andrew E. Turner Apogee at constant time-of-day equatorial (ace) orbit
IT1211458B (it) * 1987-11-04 1989-10-26 Selenia Spazio Spa Controllore della commutazione di bordo di un satellite del tipo con commutazione a bordo
JP2595603B2 (ja) * 1988-01-11 1997-04-02 日本電気株式会社 要求割付多元接続制御方式
US5239670A (en) * 1989-11-30 1993-08-24 Motorola, Inc. Satellite based global paging system
US5010317A (en) * 1989-11-30 1991-04-23 Motorola, Inc. Satellite based simulcast paging system
AU7170191A (en) * 1989-12-14 1991-07-18 Motorola, Inc. Satellite based acknowledge-back paging system
US5414431A (en) * 1990-01-02 1995-05-09 Gte Spacenet Corporation Satellite communication system
JPH0555975A (ja) * 1991-08-26 1993-03-05 Fujitsu Ltd 衛星同報通信方式及び衛星同報通信装置
US5353311A (en) * 1992-01-09 1994-10-04 Nec Corporation Radio transmitter
FR2723279B1 (fr) * 1994-07-29 1996-09-06 Europ Agence Spatiale Systeme d'emission numerique par satellite
US6188874B1 (en) * 1997-06-27 2001-02-13 Lockheed Martin Corporation Control and telemetry signal communication system for geostationary satellites
WO1999003296A1 (en) * 1997-07-14 1999-01-21 Hughes Electronics Corporation Immediate channel assignment in a wireless system
US6560461B1 (en) 1997-08-04 2003-05-06 Mundi Fomukong Authorized location reporting paging system
US5936570A (en) * 1998-03-05 1999-08-10 Teledesic Llc Low-earth orbit satellite acquisition and synchronization system using a beacon signal
US6553225B1 (en) 1999-02-03 2003-04-22 Wei Zhao Apparatus and method for positioning single-offset zones in a spot beam coverage area to maximize call duration in a satellite-based communications network
US6332069B1 (en) 1999-02-10 2001-12-18 Hughes Electronics Corporation Apparatus and method for grouping carriers to minimize the occurrence of call blocking in a satellite-based communications network
GB2450680B (en) * 2007-06-22 2012-05-30 Ubiquisys Ltd Controlling timing of synchronization updates
US10122527B1 (en) 2018-03-23 2018-11-06 Northrop Grumman Systems Corporation Signal phase tracking with high resolution, wide bandwidth and low phase noise using compound phase locked loop
EP3761524B1 (en) 2018-06-06 2023-10-18 ST Engineering iDirect (Europe) Cy NV System for synchronizing a ground segment to a beam hopping satellite
CN115459832B (zh) 2018-07-31 2024-02-02 St艾迪瑞科工程(欧洲)有限公司 卫星通信发射器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150335A (en) * 1977-08-22 1979-04-17 Communications Satellite Corporation Highly reliable distribution control unit with improved control capability
US4181886A (en) * 1977-08-22 1980-01-01 Communications Satellite Corporation Distribution control unit providing simultaneous hybrid FDMA and SS-TDMA operation in a transitional satellite switched system
US4188578A (en) * 1978-05-19 1980-02-12 Bell Telephone Laboratories, Incorporated Satellite communication system which concurrently transmits a scanning spot beam and a plurality of fixed spot beams

Also Published As

Publication number Publication date
WO1986007512A1 (en) 1986-12-18
IT1182741B (it) 1987-10-05
EP0226609A1 (en) 1987-07-01
US4763129A (en) 1988-08-09
IT8548177A0 (it) 1985-06-06

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940628