FR700019A - Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie - Google Patents
Dispositif pour l'obtention de bonnes extinctions en radiogoniométrieInfo
- Publication number
- FR700019A FR700019A FR700019DA FR700019A FR 700019 A FR700019 A FR 700019A FR 700019D A FR700019D A FR 700019DA FR 700019 A FR700019 A FR 700019A
- Authority
- FR
- France
- Prior art keywords
- extinctions
- finding
- obtaining good
- obtaining
- good
- 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
- 230000008033 biological extinction Effects 0.000 title 1
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
- G01S3/04—Details
- G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
- G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Support Of Aerials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR546843X | 1929-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR700019A true FR700019A (fr) | 1931-02-23 |
Family
ID=8933794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR700019D Expired FR700019A (fr) | 1929-11-15 | 1929-11-15 | Dispositif pour l'obtention de bonnes extinctions en radiogoniométrie |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE546843C (enrdf_load_stackoverflow) |
FR (1) | FR700019A (enrdf_load_stackoverflow) |
NL (1) | NL32160C (enrdf_load_stackoverflow) |
-
0
- NL NL32160D patent/NL32160C/xx active
-
1929
- 1929-11-15 FR FR700019D patent/FR700019A/fr not_active Expired
-
1930
- 1930-09-06 DE DE1930546843D patent/DE546843C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE546843C (de) | 1932-03-17 |
NL32160C (enrdf_load_stackoverflow) |
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