JPS5573147A - Multi-carrier communication method - Google Patents
Multi-carrier communication methodInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01136432A (en) * | 1987-11-24 | 1989-05-29 | Canon Inc | Radio communication equipment |
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 |
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 |
-
1978
- 1978-11-25 JP JP14578978A patent/JPS5573147A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01136432A (en) * | 1987-11-24 | 1989-05-29 | Canon Inc | Radio communication equipment |
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 |
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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