JPS6442931A - Transmission power control system for satellite communication earth station - Google Patents

Transmission power control system for satellite communication earth station

Info

Publication number
JPS6442931A
JPS6442931A JP19826787A JP19826787A JPS6442931A JP S6442931 A JPS6442931 A JP S6442931A JP 19826787 A JP19826787 A JP 19826787A JP 19826787 A JP19826787 A JP 19826787A JP S6442931 A JPS6442931 A JP S6442931A
Authority
JP
Japan
Prior art keywords
gain fluctuation
transmission power
reception system
signal
reception
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.)
Pending
Application number
JP19826787A
Other languages
Japanese (ja)
Inventor
Mitsuru Seta
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP19826787A priority Critical patent/JPS6442931A/en
Publication of JPS6442931A publication Critical patent/JPS6442931A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To compensate accurate transmission power together with the compensation of rainfall attenuation with quick gain fluctuation and the compensation of a reception system with comparatively slow gain fluctuation by controlling the transmission power of a transmission signal in response to a control signal from a variable correction circuit. CONSTITUTION:The rainfall attenuation with fast gain fluctuation is compensated based on the logic A of a level control with simple operation processing. On the other hand, since the gain fluctuation of the reception system is slow because of temperature change or the like, a gain fluctuation (x) of the own station reception signal reception system and the gain fluctuation (y) of the beacon signal reception system are detected by the circuit 4 based on its own reception signal level Cs and a beacon signal level CB and noises NS, NB and the level control logic A is corrected by a variable correction circuit 5 based thereupon. Thus, the transmission power attended with the rainfall attenuation is controlled by using the control signal compensating the gain fluctuation of the reception system accurately in this way.
JP19826787A 1987-08-10 1987-08-10 Transmission power control system for satellite communication earth station Pending JPS6442931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19826787A JPS6442931A (en) 1987-08-10 1987-08-10 Transmission power control system for satellite communication earth station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19826787A JPS6442931A (en) 1987-08-10 1987-08-10 Transmission power control system for satellite communication earth station

Publications (1)

Publication Number Publication Date
JPS6442931A true JPS6442931A (en) 1989-02-15

Family

ID=16388295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19826787A Pending JPS6442931A (en) 1987-08-10 1987-08-10 Transmission power control system for satellite communication earth station

Country Status (1)

Country Link
JP (1) JPS6442931A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04170232A (en) * 1990-11-02 1992-06-17 Nec Corp Transmission power control system
WO2021199217A1 (en) * 2020-03-30 2021-10-07 日本電信電話株式会社 Method for confirming transmitted radio wave in satellite communication system, portable station device, and transmitted radio wave confirmation program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04170232A (en) * 1990-11-02 1992-06-17 Nec Corp Transmission power control system
WO2021199217A1 (en) * 2020-03-30 2021-10-07 日本電信電話株式会社 Method for confirming transmitted radio wave in satellite communication system, portable station device, and transmitted radio wave confirmation program

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