JPS5452914A - Elliptic polarized wave modulation control system - Google Patents

Elliptic polarized wave modulation control system

Info

Publication number
JPS5452914A
JPS5452914A JP11964677A JP11964677A JPS5452914A JP S5452914 A JPS5452914 A JP S5452914A JP 11964677 A JP11964677 A JP 11964677A JP 11964677 A JP11964677 A JP 11964677A JP S5452914 A JPS5452914 A JP S5452914A
Authority
JP
Japan
Prior art keywords
phase
satellite
variable
power
power distribution
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
JP11964677A
Other languages
Japanese (ja)
Other versions
JPS5758092B2 (en
Inventor
Noboru Toyama
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP11964677A priority Critical patent/JPS5452914A/en
Publication of JPS5452914A publication Critical patent/JPS5452914A/en
Publication of JPS5758092B2 publication Critical patent/JPS5758092B2/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
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18517—Transmission equipment in earth stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To secure the maximum power to reach the satellite by controlling the power distribution ratio of the variable power distributor via the driving circuit as well as controlling the phase of the variable phase shifter via the processor. CONSTITUTION:The output of transmitter 1 is separated into two groups through variable power distribution board 2. The V component is delayed for the phase by 90 deg. via 90 deg. phase shifter 3, and the H component recives + or -alpha deg. variation 4. The both components are then made to be orthogonal to each other via orthogonal mode compounder 5 to be supplied to reflector 7 via electromagnetic horn 6. Here, the receiving power state is known for the antenna mounted on the satellite through satellite telemetry receiver 8, and the obtained data undergoes the data process through data processor 12. Thus, the power distribution ratio of the variable power distributor is controlled via driving circuit 11, and the phase + or -alpha deg. of variable phase shifer 4 is controlled via circuit 12. As a result, the power to reach the satellite can be maximized.
JP11964677A 1977-10-05 1977-10-05 Elliptic polarized wave modulation control system Granted JPS5452914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11964677A JPS5452914A (en) 1977-10-05 1977-10-05 Elliptic polarized wave modulation control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11964677A JPS5452914A (en) 1977-10-05 1977-10-05 Elliptic polarized wave modulation control system

Publications (2)

Publication Number Publication Date
JPS5452914A true JPS5452914A (en) 1979-04-25
JPS5758092B2 JPS5758092B2 (en) 1982-12-08

Family

ID=14766593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11964677A Granted JPS5452914A (en) 1977-10-05 1977-10-05 Elliptic polarized wave modulation control system

Country Status (1)

Country Link
JP (1) JPS5452914A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549467A (en) * 1978-09-13 1980-04-09 Schuermann & Co Heinz Extruder for window or door

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549467A (en) * 1978-09-13 1980-04-09 Schuermann & Co Heinz Extruder for window or door

Also Published As

Publication number Publication date
JPS5758092B2 (en) 1982-12-08

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