JPS6462034A - Position measuring method by carrier of communication wave - Google Patents
Position measuring method by carrier of communication waveInfo
- Publication number
- JPS6462034A JPS6462034A JP21935787A JP21935787A JPS6462034A JP S6462034 A JPS6462034 A JP S6462034A JP 21935787 A JP21935787 A JP 21935787A JP 21935787 A JP21935787 A JP 21935787A JP S6462034 A JPS6462034 A JP S6462034A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- station
- frequency
- wave
- slave
- 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
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
PURPOSE:To measure an accurate position by using a modulated radio wave signal to identify a station and to detect synchronization thereby measuring a phase difference between narrow band carriers whose each frequency is stable. CONSTITUTION:Radio waves modulated in the order of 11M, 11S1, 11S2 are sent as sinusoidal tone signals for identifying a carrier from a master station M to a stationary transmission station sending the carrier to a mobile station 5. In receiving the transmission radio wave by a receiver mounted on the mobile station 5, a carrier spectrum component 10M of the master station M is received at first from the circuit extracting only a carrier by using each tone signal after reception and detection and the frequency 10MM subject to phase synchronization is generated to the carrier spectrum component 10M. Then the accurate location is obtained by a line group of a hyperbolic wave between the master station M and slave stations S1, S2 by measuring the phase difference of the carrier 10S1 of the slave station S1 and the carrier 10S2 of the slave station S2 received succeedingly with respect to the frequency 10MM. Thus, the accurate position is measured by using a radio communication wave freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21935787A JPS6462034A (en) | 1987-09-02 | 1987-09-02 | Position measuring method by carrier of communication wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21935787A JPS6462034A (en) | 1987-09-02 | 1987-09-02 | Position measuring method by carrier of communication wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6462034A true JPS6462034A (en) | 1989-03-08 |
Family
ID=16734167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21935787A Pending JPS6462034A (en) | 1987-09-02 | 1987-09-02 | Position measuring method by carrier of communication wave |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6462034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8248988B2 (en) | 1994-09-06 | 2012-08-21 | Interdigital Technology Corporation | Locating a wireless user |
-
1987
- 1987-09-02 JP JP21935787A patent/JPS6462034A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8248988B2 (en) | 1994-09-06 | 2012-08-21 | Interdigital Technology Corporation | Locating a wireless user |
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