JPS647724A - Communication system utilizing earth satellite - Google Patents
Communication system utilizing earth satelliteInfo
- Publication number
- JPS647724A JPS647724A JP16106987A JP16106987A JPS647724A JP S647724 A JPS647724 A JP S647724A JP 16106987 A JP16106987 A JP 16106987A JP 16106987 A JP16106987 A JP 16106987A JP S647724 A JPS647724 A JP S647724A
- Authority
- JP
- Japan
- Prior art keywords
- time
- transmitting
- information
- earth satellite
- earth
- 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
Links
Landscapes
- Radio Relay Systems (AREA)
Abstract
PURPOSE:To simplify facilities, to improve a processing efficiency with an earth satellite and to reduce a communication cost by accumulating communication information to the earth satellite together with transmitting time information. CONSTITUTION:An earth satellite 3 to rotate on a polar orbit 2 to pass over the sky of the North Pole N and the South Pole S of the Earth 1 in the direction of an arrow is of a sun synchronous shape to revolve around the Sun together with the Earth. For example, information is transmitted from a transmitting station 4 in Tokyo toward the earth satellite 3 at a time t1. The information includes the identification information, transmitting time informtion and communication data of a receiving signal. The time information shows a time T necessary for the earth satellite 3 to move from the upward position of the transmitting station 4, for example, to the sky position of a receiving station 5 in New York. The transmitting information from the transmitting station 4 is received by a receiving antenna 6 of the earth satellite 3 and stored through a control part 7 to a memory 8 together with the receiving time t1. After a time T from the time t1, the earth satellite 3 reads the transmitting information of the memory 8 and transmits it from a transmitting antenna 10 to the receiving station 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16106987A JPS647724A (en) | 1987-06-30 | 1987-06-30 | Communication system utilizing earth satellite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16106987A JPS647724A (en) | 1987-06-30 | 1987-06-30 | Communication system utilizing earth satellite |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647724A true JPS647724A (en) | 1989-01-11 |
Family
ID=15728028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16106987A Pending JPS647724A (en) | 1987-06-30 | 1987-06-30 | Communication system utilizing earth satellite |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647724A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0645901A1 (en) * | 1993-09-24 | 1995-03-29 | ALENIA SPAZIO S.p.A. | Satellite telecommunications and remote sensing system based on the use of short-period sun-synchronous elliptical orbits |
-
1987
- 1987-06-30 JP JP16106987A patent/JPS647724A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0645901A1 (en) * | 1993-09-24 | 1995-03-29 | ALENIA SPAZIO S.p.A. | Satellite telecommunications and remote sensing system based on the use of short-period sun-synchronous elliptical orbits |
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