JPS5573147A - Multi-carrier communication method - Google Patents

Multi-carrier communication method

Info

Publication number
JPS5573147A
JPS5573147A JP14578978A JP14578978A JPS5573147A JP S5573147 A JPS5573147 A JP S5573147A JP 14578978 A JP14578978 A JP 14578978A JP 14578978 A JP14578978 A JP 14578978A JP S5573147 A JPS5573147 A JP S5573147A
Authority
JP
Japan
Prior art keywords
carriers
fold
features
different frequencies
modulation wave
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
JP14578978A
Other languages
Japanese (ja)
Inventor
Susumu Kashiwa
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP14578978A priority Critical patent/JPS5573147A/en
Publication of JPS5573147A publication Critical patent/JPS5573147A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

PURPOSE:To enhance the S/N by transmitting the information of the same contents on the carriers of different frequencies. CONSTITUTION:The carriers of different frequencies are extracted from the signals sent from oscillator 1 through carrier generators 21-2n and then modulated through modulators 31-3n and via the modulation wave sent from modulation wave generator 4 to be then transmitted individually through transmission antennas 51-5n. While at the reception side, the carriers are received at reception antennas 61-6n and then demodulated through demodulators 81-8n. And the output is compounded at regeneration circuit 9. Accordingly, if the number of the carriers is referred to as n, signal S features the voltage addition to be n-fold. While Noise N features the power addition to be n<1/2>-fold. As a result, the S/N can be enhanced.
JP14578978A 1978-11-25 1978-11-25 Multi-carrier communication method Pending JPS5573147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14578978A JPS5573147A (en) 1978-11-25 1978-11-25 Multi-carrier communication method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14578978A JPS5573147A (en) 1978-11-25 1978-11-25 Multi-carrier communication method

Publications (1)

Publication Number Publication Date
JPS5573147A true JPS5573147A (en) 1980-06-02

Family

ID=15393188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14578978A Pending JPS5573147A (en) 1978-11-25 1978-11-25 Multi-carrier communication method

Country Status (1)

Country Link
JP (1) JPS5573147A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136432A (en) * 1987-11-24 1989-05-29 Canon Inc wireless communication device
US5214787A (en) * 1990-08-31 1993-05-25 Karkota Jr Frank P Multiple audio channel broadcast system
JP2012205081A (en) * 2011-03-25 2012-10-22 Asahi Kasei Electronics Co Ltd Reception circuit
JP6727462B1 (en) * 2019-08-21 2020-07-22 三菱電機株式会社 Wireless communication device, control circuit, wireless communication method, and storage medium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01136432A (en) * 1987-11-24 1989-05-29 Canon Inc wireless communication device
US5214787A (en) * 1990-08-31 1993-05-25 Karkota Jr Frank P Multiple audio channel broadcast system
JP2012205081A (en) * 2011-03-25 2012-10-22 Asahi Kasei Electronics Co Ltd Reception circuit
JP6727462B1 (en) * 2019-08-21 2020-07-22 三菱電機株式会社 Wireless communication device, control circuit, wireless communication method, and storage medium
WO2021033297A1 (en) * 2019-08-21 2021-02-25 三菱電機株式会社 Wireless communication device, control circuit, wireless communication method, and storage medium
CN114245966A (en) * 2019-08-21 2022-03-25 三菱电机株式会社 Wireless communication device, control circuit, wireless communication method, and storage medium
US11764841B2 (en) 2019-08-21 2023-09-19 Mitsubishi Electric Corporation Wireless communication device, control circuit, wireless communication method, and storage medium

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