JPS5534578A - Coding communication system - Google Patents

Coding communication system

Info

Publication number
JPS5534578A
JPS5534578A JP10784178A JP10784178A JPS5534578A JP S5534578 A JPS5534578 A JP S5534578A JP 10784178 A JP10784178 A JP 10784178A JP 10784178 A JP10784178 A JP 10784178A JP S5534578 A JPS5534578 A JP S5534578A
Authority
JP
Japan
Prior art keywords
code
distances
measurement
clock
command
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
JP10784178A
Other languages
Japanese (ja)
Inventor
Kunio Tano
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10784178A priority Critical patent/JPS5534578A/en
Publication of JPS5534578A publication Critical patent/JPS5534578A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Position Fixing By Use Of Radio Waves (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE: To save power consumption for signals of measuring distances extreamly, shorten the time for holding signals and multiply the measurement of distances, commands and telemetry by carrying out synchronously measurement of distances by means of PN and communication by means of PCM.
CONSTITUTION: Clock f (127k bps) of PN code for measurement of distances is applied from clock generator 1 to PN code generator 2 and a PN code with length N is generated. A clock for command of f/N is entered into code generator 7. Divider 6 sends a start synchronizing signal of f/K to the diemodulating part and synchronizes with the start of transmission of the command code. The PN code array is processed in exclusive "OR" 3 in correspondence with the command code, modulated in modulator 4 and transmitted by transmitter 5. The up-link signal is received and relayed by the transponder equipped in a artificial satellite and is transmitted again. Therefore, the PN code becomes 1/100 of the usual one and the process is completely finished within about 1 sec. In addition, S/N of the circuit is not decreased by the signal for measurement of distances.
COPYRIGHT: (C)1980,JPO&Japio
JP10784178A 1978-09-02 1978-09-02 Coding communication system Pending JPS5534578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10784178A JPS5534578A (en) 1978-09-02 1978-09-02 Coding communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10784178A JPS5534578A (en) 1978-09-02 1978-09-02 Coding communication system

Publications (1)

Publication Number Publication Date
JPS5534578A true JPS5534578A (en) 1980-03-11

Family

ID=14469402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10784178A Pending JPS5534578A (en) 1978-09-02 1978-09-02 Coding communication system

Country Status (1)

Country Link
JP (1) JPS5534578A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6037850A (en) * 1983-08-10 1985-02-27 Clarion Co Ltd Logical circuit
JP2014020814A (en) * 2012-07-13 2014-02-03 Lighthouse Technology & Consulting Co Ltd Satellite positioning system and positioning reinforcement signal generation method
US10027898B2 (en) 2012-08-30 2018-07-17 Softkinetic Sensors Nv TOF illumination system and TOF camera and method for operating, with control means for driving electronic devices located in the scene

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6037850A (en) * 1983-08-10 1985-02-27 Clarion Co Ltd Logical circuit
JP2014020814A (en) * 2012-07-13 2014-02-03 Lighthouse Technology & Consulting Co Ltd Satellite positioning system and positioning reinforcement signal generation method
US10027898B2 (en) 2012-08-30 2018-07-17 Softkinetic Sensors Nv TOF illumination system and TOF camera and method for operating, with control means for driving electronic devices located in the scene

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