JPS648738A - Radio communication system - Google Patents
Radio communication systemInfo
- Publication number
- JPS648738A JPS648738A JP16227587A JP16227587A JPS648738A JP S648738 A JPS648738 A JP S648738A JP 16227587 A JP16227587 A JP 16227587A JP 16227587 A JP16227587 A JP 16227587A JP S648738 A JPS648738 A JP S648738A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- synthesizer
- demodulator
- given
- high frequency
- 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
Abstract
PURPOSE:To prevent the deterioration in the transmission quality due to selective fading by sending a spread spectrum signal whose frequency is used in common to that of a radio channel from a base station. CONSTITUTION:A radio wave sent from a base station 40 is received by a slave station 30 and the received high frequency signal is given to an SS demodulator 3 via a multicoupler 2 and given to a synthesizer 4. The high frequency signal given to the demodulator 3 becomes the demodulation signal subject to spread spectrum, which is input to a multi-path equalizer 5. The high frequency signal input to the synthesizer 4 is converted into an IF signal by a synthesizer 6. The demodulation signal of the component subject to spread spectrum and the IF signal are equalized by the multi-oath equalizer and the equalized IF signal is input to a demodulator 10. The demodulated signal is an output signal not affected by the selective fading.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16227587A JPS648738A (en) | 1987-07-01 | 1987-07-01 | Radio communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16227587A JPS648738A (en) | 1987-07-01 | 1987-07-01 | Radio communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648738A true JPS648738A (en) | 1989-01-12 |
Family
ID=15751372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16227587A Pending JPS648738A (en) | 1987-07-01 | 1987-07-01 | Radio communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648738A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5264787A (en) * | 1991-08-30 | 1993-11-23 | Hughes Aircraft Company | Rigid-flex circuits with raised features as IC test probes |
JP2008517537A (en) * | 2004-10-14 | 2008-05-22 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | Improved beacon signal to facilitate signal detection and timing synchronization |
JP2008517524A (en) * | 2004-10-14 | 2008-05-22 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | Improved beacon signal communication method and apparatus |
-
1987
- 1987-07-01 JP JP16227587A patent/JPS648738A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5264787A (en) * | 1991-08-30 | 1993-11-23 | Hughes Aircraft Company | Rigid-flex circuits with raised features as IC test probes |
JP2008517537A (en) * | 2004-10-14 | 2008-05-22 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | Improved beacon signal to facilitate signal detection and timing synchronization |
JP2008517524A (en) * | 2004-10-14 | 2008-05-22 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | Improved beacon signal communication method and apparatus |
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