JPS6457847A - Code hopping type multiplex spread spectrum communication system - Google Patents

Code hopping type multiplex spread spectrum communication system

Info

Publication number
JPS6457847A
JPS6457847A JP62213858A JP21385887A JPS6457847A JP S6457847 A JPS6457847 A JP S6457847A JP 62213858 A JP62213858 A JP 62213858A JP 21385887 A JP21385887 A JP 21385887A JP S6457847 A JPS6457847 A JP S6457847A
Authority
JP
Japan
Prior art keywords
shoed
noise
synchronization
code
demodulation
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
Application number
JP62213858A
Other languages
Japanese (ja)
Other versions
JP2567255B2 (en
Inventor
Yasuo Nagazumi
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.)
GEN RES ELECTRONICS Inc
GENERAL RES OBU EREKUTORONITSUKUSU KK
Original Assignee
GEN RES ELECTRONICS Inc
GENERAL RES OBU EREKUTORONITSUKUSU 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 GEN RES ELECTRONICS Inc, GENERAL RES OBU EREKUTORONITSUKUSU KK filed Critical GEN RES ELECTRONICS Inc
Priority to JP62213858A priority Critical patent/JP2567255B2/en
Publication of JPS6457847A publication Critical patent/JPS6457847A/en
Application granted granted Critical
Publication of JP2567255B2 publication Critical patent/JP2567255B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0074—Code shifting or hopping

Abstract

PURPOSE:To completely attain the demodulation of a reception signal by using a shoed noise to be synchronized from the relation of shoed noise code combination so as to recognize the shoed noise whose synchronization is missing, thereby compensating it. CONSTITUTION:Outputs of plural shoed noise generators 102 are selected and synthesized in a prescribed relation at transmission and the result is used as a spread code as the code modulation of an input signal and the synthesized reference code is used by the synchronization of the S unit reference code corresponding individually to the selected shoed noise to apply the demodulation of a reception signal. When synchronization cannot be taken at least one kind of shoed noise, the missing shoed noise is discriminated from the other noises whose synchronization exist. Thus, even if some of shoed noises have synchronization missing due to jamming at the reception, it is compensated to attain sure demodulation.
JP62213858A 1987-08-27 1987-08-27 Code hopping multiple spread spectrum communication system Expired - Fee Related JP2567255B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62213858A JP2567255B2 (en) 1987-08-27 1987-08-27 Code hopping multiple spread spectrum communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62213858A JP2567255B2 (en) 1987-08-27 1987-08-27 Code hopping multiple spread spectrum communication system

Publications (2)

Publication Number Publication Date
JPS6457847A true JPS6457847A (en) 1989-03-06
JP2567255B2 JP2567255B2 (en) 1996-12-25

Family

ID=16646185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62213858A Expired - Fee Related JP2567255B2 (en) 1987-08-27 1987-08-27 Code hopping multiple spread spectrum communication system

Country Status (1)

Country Link
JP (1) JP2567255B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003067779A1 (en) * 2002-02-06 2003-08-14 Siemens Aktiengesellschaft Method, system, and computer program with program code means and computer program product for generating a multiplexed communication signal from several communication signals by using code division multiple access (cdma) technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003067779A1 (en) * 2002-02-06 2003-08-14 Siemens Aktiengesellschaft Method, system, and computer program with program code means and computer program product for generating a multiplexed communication signal from several communication signals by using code division multiple access (cdma) technology

Also Published As

Publication number Publication date
JP2567255B2 (en) 1996-12-25

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