JPS5227210A - Frequency controller in earth station - Google Patents
Frequency controller in earth stationInfo
- Publication number
- JPS5227210A JPS5227210A JP50102714A JP10271475A JPS5227210A JP S5227210 A JPS5227210 A JP S5227210A JP 50102714 A JP50102714 A JP 50102714A JP 10271475 A JP10271475 A JP 10271475A JP S5227210 A JPS5227210 A JP S5227210A
- Authority
- JP
- Japan
- Prior art keywords
- earth station
- frequency controller
- satallite
- fdma
- communication system
- 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
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
- H04B7/208—Frequency-division multiple access [FDMA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
PURPOSE:To obtain FDMA satallite communication system which remarkably increases utilization factor of transmission frequency bands.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50102714A JPS5910097B2 (en) | 1975-08-25 | 1975-08-25 | Frequency control device at ground station |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50102714A JPS5910097B2 (en) | 1975-08-25 | 1975-08-25 | Frequency control device at ground station |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5227210A true JPS5227210A (en) | 1977-03-01 |
JPS5910097B2 JPS5910097B2 (en) | 1984-03-07 |
Family
ID=14334924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50102714A Expired JPS5910097B2 (en) | 1975-08-25 | 1975-08-25 | Frequency control device at ground station |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5910097B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5862943A (en) * | 1981-10-08 | 1983-04-14 | Nec Corp | Satellite communication system |
JPH02246563A (en) * | 1989-03-20 | 1990-10-02 | Oki Electric Ind Co Ltd | Radio communication equipment |
JPH0414810B2 (en) * | 1984-03-04 | 1992-03-16 | Kokusai Denshin Denwa Co Ltd |
-
1975
- 1975-08-25 JP JP50102714A patent/JPS5910097B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5862943A (en) * | 1981-10-08 | 1983-04-14 | Nec Corp | Satellite communication system |
JPH0414810B2 (en) * | 1984-03-04 | 1992-03-16 | Kokusai Denshin Denwa Co Ltd | |
JPH02246563A (en) * | 1989-03-20 | 1990-10-02 | Oki Electric Ind Co Ltd | Radio communication equipment |
Also Published As
Publication number | Publication date |
---|---|
JPS5910097B2 (en) | 1984-03-07 |
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