FR1230585A - Radio device for locating a mobile - Google Patents
Radio device for locating a mobileInfo
- Publication number
- FR1230585A FR1230585A FR790973A FR790973A FR1230585A FR 1230585 A FR1230585 A FR 1230585A FR 790973 A FR790973 A FR 790973A FR 790973 A FR790973 A FR 790973A FR 1230585 A FR1230585 A FR 1230585A
- Authority
- FR
- France
- Prior art keywords
- locating
- mobile
- radio device
- radio
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR790973A FR1230585A (en) | 1959-04-01 | 1959-04-01 | Radio device for locating a mobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR790973A FR1230585A (en) | 1959-04-01 | 1959-04-01 | Radio device for locating a mobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1230585A true FR1230585A (en) | 1960-09-16 |
Family
ID=8713153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR790973A Expired FR1230585A (en) | 1959-04-01 | 1959-04-01 | Radio device for locating a mobile |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1230585A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006594A1 (en) * | 1978-07-05 | 1980-01-09 | Siemens Aktiengesellschaft | Hyperbolic-phase method of comparison for determining the location of surface-bound vehicles and apparatus for carrying out this method |
| EP0315411A1 (en) * | 1987-11-02 | 1989-05-10 | Precision Technology Inc | Improvements in or relating to a target tracking system |
-
1959
- 1959-04-01 FR FR790973A patent/FR1230585A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006594A1 (en) * | 1978-07-05 | 1980-01-09 | Siemens Aktiengesellschaft | Hyperbolic-phase method of comparison for determining the location of surface-bound vehicles and apparatus for carrying out this method |
| EP0315411A1 (en) * | 1987-11-02 | 1989-05-10 | Precision Technology Inc | Improvements in or relating to a target tracking system |
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