JPS5710543A - Ss-tdma synchronizing device - Google Patents

Ss-tdma synchronizing device

Info

Publication number
JPS5710543A
JPS5710543A JP8476080A JP8476080A JPS5710543A JP S5710543 A JPS5710543 A JP S5710543A JP 8476080 A JP8476080 A JP 8476080A JP 8476080 A JP8476080 A JP 8476080A JP S5710543 A JPS5710543 A JP S5710543A
Authority
JP
Japan
Prior art keywords
superframe
synchronizing
satellite
counter
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP8476080A
Other languages
Japanese (ja)
Other versions
JPS611946B2 (en
Inventor
Toshitsune Hotsuta
Yukio Takimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8476080A priority Critical patent/JPS5710543A/en
Priority to US06/275,706 priority patent/US4398291A/en
Priority to EP81104866A priority patent/EP0042623B1/en
Priority to DE8181104866T priority patent/DE3164139D1/en
Publication of JPS5710543A publication Critical patent/JPS5710543A/en
Publication of JPS611946B2 publication Critical patent/JPS611946B2/ja
Granted legal-status Critical Current

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
    • H04B7/2046—SS-TDMA, TDMA satellite switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To obtain the means which enables short break switching of information signal economically, by performing a format change by synchronizing an earth station and a satellite. CONSTITUTION:A frame synchronizing signal of a reception signal 32 is detected at 106 and the phase between a synchronizing window and synchronizing burst on a satellite is measured at 107. A superframe of an integral multiple the frame period is calculated by a transmission superframe counter 111 and a receiving superframe counter 109 to transmit the transmission superframe synchronizing signal 46 of a frame 111. Further, it is detected that the synchronizing signal is not received every super frame period, to synchronize the receiving superframe counter 109 to the superframe on the satellite, and it is detected that the transmission superframe synchronizing signal transmitted by the station itself is not received every superframe period, to synchronize the transmission superframe counter 111 to the superframe on the satellite.
JP8476080A 1980-06-23 1980-06-23 Ss-tdma synchronizing device Granted JPS5710543A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8476080A JPS5710543A (en) 1980-06-23 1980-06-23 Ss-tdma synchronizing device
US06/275,706 US4398291A (en) 1980-06-23 1981-06-22 Satellite communication system for switching formats with reference to super-frame time slots
EP81104866A EP0042623B1 (en) 1980-06-23 1981-06-23 Satellite communication system for switching formats with reference to super-frame time slots
DE8181104866T DE3164139D1 (en) 1980-06-23 1981-06-23 Satellite communication system for switching formats with reference to super-frame time slots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8476080A JPS5710543A (en) 1980-06-23 1980-06-23 Ss-tdma synchronizing device

Publications (2)

Publication Number Publication Date
JPS5710543A true JPS5710543A (en) 1982-01-20
JPS611946B2 JPS611946B2 (en) 1986-01-21

Family

ID=13839633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8476080A Granted JPS5710543A (en) 1980-06-23 1980-06-23 Ss-tdma synchronizing device

Country Status (1)

Country Link
JP (1) JPS5710543A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58133054A (en) * 1982-02-03 1983-08-08 Nippon Telegr & Teleph Corp <Ntt> Satellite communication synchronizing system
JPS59112564A (en) * 1982-11-26 1984-06-29 ゼネラル・エレクトリツク・カンパニイ High pressure metal discharge lamp
US5563337A (en) * 1994-10-12 1996-10-08 Diagnetics, Inc. Moisture monitor apparatus for a fluid system
JP2019153963A (en) * 2018-03-05 2019-09-12 アンリツ株式会社 Frame synchronization apparatus, signal analysis apparatus including the same, frame synchronization method, and signal analysis method
JP2021027454A (en) * 2019-08-05 2021-02-22 株式会社日立国際電気 Radio communications system and radio relay station device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58133054A (en) * 1982-02-03 1983-08-08 Nippon Telegr & Teleph Corp <Ntt> Satellite communication synchronizing system
JPS59112564A (en) * 1982-11-26 1984-06-29 ゼネラル・エレクトリツク・カンパニイ High pressure metal discharge lamp
US5563337A (en) * 1994-10-12 1996-10-08 Diagnetics, Inc. Moisture monitor apparatus for a fluid system
JP2019153963A (en) * 2018-03-05 2019-09-12 アンリツ株式会社 Frame synchronization apparatus, signal analysis apparatus including the same, frame synchronization method, and signal analysis method
JP2021027454A (en) * 2019-08-05 2021-02-22 株式会社日立国際電気 Radio communications system and radio relay station device

Also Published As

Publication number Publication date
JPS611946B2 (en) 1986-01-21

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