JPS6451847A - Plural carrier synchronizm detection system - Google Patents
Plural carrier synchronizm detection systemInfo
- Publication number
- JPS6451847A JPS6451847A JP62208301A JP20830187A JPS6451847A JP S6451847 A JPS6451847 A JP S6451847A JP 62208301 A JP62208301 A JP 62208301A JP 20830187 A JP20830187 A JP 20830187A JP S6451847 A JPS6451847 A JP S6451847A
- Authority
- JP
- Japan
- Prior art keywords
- plural
- frequency
- signals
- 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
Links
Abstract
PURPOSE:To demodulate all received carriers in the complete synchronizing state by generating plural pilot signals whose frequency interval is in the synchronizing relation with a reference frequency, sending them simultaneously and detecting the reference frequency from the plural pilot signals at the reception side to recover the reference carrier. CONSTITUTION:Plural pilot signals 1, 2 sent to the same signal band with the plural signals and in the synchronizing relation to the frequency of the signal group are used and the frequency of the local oscillator 21 of the frequency conversion circuit at the reception side is controlled so that the frequency of the received pilot signal after reception is in the synchronizing relation with the plural received signal frequencies and plural reception signals are detected synchronizingly based on the received pilot signal. Thus, a reference signal with excellent quality is obtained and plural reception signals are detected synchronizingly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62208301A JPS6451847A (en) | 1987-08-24 | 1987-08-24 | Plural carrier synchronizm detection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62208301A JPS6451847A (en) | 1987-08-24 | 1987-08-24 | Plural carrier synchronizm detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6451847A true JPS6451847A (en) | 1989-02-28 |
Family
ID=16553984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62208301A Pending JPS6451847A (en) | 1987-08-24 | 1987-08-24 | Plural carrier synchronizm detection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6451847A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04172828A (en) * | 1990-11-07 | 1992-06-19 | Nec Corp | Satellite communication earth station |
-
1987
- 1987-08-24 JP JP62208301A patent/JPS6451847A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04172828A (en) * | 1990-11-07 | 1992-06-19 | Nec Corp | Satellite communication earth station |
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