JPS6451847A - Plural carrier synchronizm detection system - Google Patents

Plural carrier synchronizm detection system

Info

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
Application number
JP62208301A
Other languages
Japanese (ja)
Inventor
Tatsuo Watanabe
Hideo Kobayashi
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP62208301A priority Critical patent/JPS6451847A/en
Publication of JPS6451847A publication Critical patent/JPS6451847A/en
Pending legal-status Critical Current

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.
JP62208301A 1987-08-24 1987-08-24 Plural carrier synchronizm detection system Pending JPS6451847A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04172828A (en) * 1990-11-07 1992-06-19 Nec Corp Satellite communication earth station

Cited By (1)

* Cited by examiner, † Cited by third party
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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