JPS57140043A - Repeater for multibeam satellite mounting - Google Patents

Repeater for multibeam satellite mounting

Info

Publication number
JPS57140043A
JPS57140043A JP56024863A JP2486381A JPS57140043A JP S57140043 A JPS57140043 A JP S57140043A JP 56024863 A JP56024863 A JP 56024863A JP 2486381 A JP2486381 A JP 2486381A JP S57140043 A JPS57140043 A JP S57140043A
Authority
JP
Japan
Prior art keywords
output
reception
inputted
signal
synthesized
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
JP56024863A
Other languages
Japanese (ja)
Other versions
JPS609382B2 (en
Inventor
Toshio Takahashi
Yasuo Hirata
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP56024863A priority Critical patent/JPS609382B2/en
Publication of JPS57140043A publication Critical patent/JPS57140043A/en
Publication of JPS609382B2 publication Critical patent/JPS609382B2/en
Expired 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To reduce an active circuit and to achieve power saving and high reliability, by synthesizing a signal of the same frequency at a synthesizer in advance before demodulating a reception signal and demodulating it afterward. CONSTITUTION:A plurality of reception beam elements RB1-RB3 are connected to a receiver 2, and an output of a receiver 2 is inputted to a branching device 3 which branches reception frequencies f1-f3 in a beam. The output of each branching device 3 is synthesized at a synthesizer 7 at each same reception frequency, and the synthesized output is inputted to demodulators 4, respectively. In the synthesis of a reception signal, since the time slot of the same frequency is not overlapped on a time axis, power can simply be synthesized. The output of each demodulator 4 is inputted to a base band switch matrix 5, where the time slot of the base band signal obtained at each demodulator is replaced, and the base band signal is reorganized at transmission beam elements TB1-TB3. The output signal of the matrix 5 is inputted to modulators 6, respectively and modulated and transmitted via the elements TB1-TB3.
JP56024863A 1981-02-24 1981-02-24 Multi-beam satellite onboard relay device Expired JPS609382B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56024863A JPS609382B2 (en) 1981-02-24 1981-02-24 Multi-beam satellite onboard relay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56024863A JPS609382B2 (en) 1981-02-24 1981-02-24 Multi-beam satellite onboard relay device

Publications (2)

Publication Number Publication Date
JPS57140043A true JPS57140043A (en) 1982-08-30
JPS609382B2 JPS609382B2 (en) 1985-03-09

Family

ID=12150048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56024863A Expired JPS609382B2 (en) 1981-02-24 1981-02-24 Multi-beam satellite onboard relay device

Country Status (1)

Country Link
JP (1) JPS609382B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885441A (en) * 1986-09-16 1989-12-05 Mitsubishi Denki Kabushiki Kaisha Circuit Breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885441A (en) * 1986-09-16 1989-12-05 Mitsubishi Denki Kabushiki Kaisha Circuit Breaker

Also Published As

Publication number Publication date
JPS609382B2 (en) 1985-03-09

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