FR2137604B1 - - Google Patents
Info
- Publication number
- FR2137604B1 FR2137604B1 FR7216321A FR7216321A FR2137604B1 FR 2137604 B1 FR2137604 B1 FR 2137604B1 FR 7216321 A FR7216321 A FR 7216321A FR 7216321 A FR7216321 A FR 7216321A FR 2137604 B1 FR2137604 B1 FR 2137604B1
- Authority
- FR
- France
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO173571 | 1971-05-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2137604A1 FR2137604A1 (https=) | 1972-12-29 |
| FR2137604B1 true FR2137604B1 (https=) | 1977-07-22 |
Family
ID=19878401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7216321A Expired FR2137604B1 (https=) | 1971-05-07 | 1972-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2137604B1 (https=) |
-
1972
- 1972-05-08 FR FR7216321A patent/FR2137604B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2137604A1 (https=) | 1972-12-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |