FR2389901A1 - - Google Patents
Info
- Publication number
- FR2389901A1 FR2389901A1 FR7809524A FR7809524A FR2389901A1 FR 2389901 A1 FR2389901 A1 FR 2389901A1 FR 7809524 A FR7809524 A FR 7809524A FR 7809524 A FR7809524 A FR 7809524A FR 2389901 A1 FR2389901 A1 FR 2389901A1
- Authority
- FR
- France
- Prior art keywords
- connected via
- memory
- dipoles
- antennas
- incidence
- 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.)
- Granted
Links
- 230000009977 dual effect Effects 0.000 abstract 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
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/16—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2720222A DE2720222C3 (de) | 1977-05-05 | 1977-05-05 | Verfahren und Anordnung zur Bestimmung der Einfallsrichtung elektromagnetischer Wellen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2389901A1 true FR2389901A1 (cg-RX-API-DMAC7.html) | 1978-12-01 |
| FR2389901B1 FR2389901B1 (cg-RX-API-DMAC7.html) | 1982-05-14 |
Family
ID=6008158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7809524A Expired FR2389901B1 (cg-RX-API-DMAC7.html) | 1977-05-05 | 1978-03-31 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4194207A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2720222C3 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2389901B1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1595092A (cg-RX-API-DMAC7.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0161940A3 (en) * | 1984-05-17 | 1987-02-04 | The Electricity Council | Radio direction finding for locating lightening ground strikes |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54145491A (en) * | 1978-05-06 | 1979-11-13 | Furuno Electric Co | Direction finder |
| DE3224722A1 (de) * | 1982-07-02 | 1984-01-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und anordnung zur peilung auf schiffen |
| FI85427C (fi) * | 1989-06-14 | 1992-04-10 | Vaisala Oy | Foerfarande och anordning foer ett objekts azimut- och elevationsmaetning. |
| GB9903563D0 (en) * | 1999-02-17 | 1999-04-07 | Roke Manor Research | Three axis antenna for loran receiver |
| CH697469B1 (de) * | 2004-05-06 | 2008-10-31 | Girsberger Elektronik Ag | Vorrichtung zur Erkennung der Betriebsart Senden eines Lawinenverschütteten-Suchgerà tes. |
| US8031109B2 (en) * | 2009-07-17 | 2011-10-04 | Codar Ocean Sensors, Ltd. | Combined transmit/receive single-post antenna for HF/VHF radar |
| WO2012134456A1 (en) * | 2011-03-29 | 2012-10-04 | Son Nguyen | Directional radio-signal-detection apparatus and methods of use |
| CN113050027B (zh) * | 2021-03-08 | 2023-09-19 | 浙江大学 | 一种幅相误差情况下基于稀疏重构的波达方向估计方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1766666A1 (de) * | 1968-07-01 | 1971-08-19 | Pfaff K Dipl Ing | Mehrkanalpeiler mit Signalspeicher |
| DE2202517A1 (de) * | 1972-01-20 | 1973-07-26 | Licentia Gmbh | Verfahren zur peilung periodisch wiederkehrender impulsfoermiger signale |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2256619A (en) * | 1940-06-01 | 1941-09-23 | Rca Corp | Directional antenna |
| US2513485A (en) * | 1943-10-04 | 1950-07-04 | Automatic Elect Lab | Multiband superheterodyne radio receiver |
| US3042917A (en) * | 1958-12-22 | 1962-07-03 | Gen Electric | Antenna tracking system |
| US3106710A (en) * | 1961-06-07 | 1963-10-08 | Collins Radio Co | Automatic direction finder receiver |
| DE1170481B (de) * | 1961-07-27 | 1964-05-21 | Waechtler Dr Maximilian | Verfahren zur Bestimmung der Einfallsrichtung elektromagnetischer Wellen |
| GB1078432A (en) * | 1964-05-13 | 1967-08-09 | Marconi Co Ltd | Improvements in or relating to radio goniometers and radio direction finders incorporating the same |
| DE1541446B1 (de) * | 1966-12-17 | 1970-07-30 | Messerschmitt Boelkow Blohm | Anordnung zur Speisung von Antennen zur Richtungsbestimmung strahlender oder rueckstrahlender Objekte nach dem Amplitudenvergleichsverfahren |
| US3441900A (en) * | 1967-07-18 | 1969-04-29 | Control Data Corp | Signal detection,identification,and communication system providing good noise discrimination |
| US3824596A (en) * | 1972-09-27 | 1974-07-16 | Southwest Res Inst | Automatic sector indicating direction finder system |
| US3987446A (en) * | 1972-10-27 | 1976-10-19 | General Instrument Corporation | Direction finding apparatus |
-
1977
- 1977-05-05 DE DE2720222A patent/DE2720222C3/de not_active Expired
-
1978
- 1978-03-31 FR FR7809524A patent/FR2389901B1/fr not_active Expired
- 1978-05-04 US US05/902,821 patent/US4194207A/en not_active Expired - Lifetime
- 1978-05-04 GB GB17751/78A patent/GB1595092A/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1766666A1 (de) * | 1968-07-01 | 1971-08-19 | Pfaff K Dipl Ing | Mehrkanalpeiler mit Signalspeicher |
| DE2202517A1 (de) * | 1972-01-20 | 1973-07-26 | Licentia Gmbh | Verfahren zur peilung periodisch wiederkehrender impulsfoermiger signale |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0161940A3 (en) * | 1984-05-17 | 1987-02-04 | The Electricity Council | Radio direction finding for locating lightening ground strikes |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2720222A1 (de) | 1978-11-09 |
| GB1595092A (en) | 1981-08-05 |
| DE2720222C3 (de) | 1980-07-31 |
| DE2720222B2 (de) | 1979-11-22 |
| FR2389901B1 (cg-RX-API-DMAC7.html) | 1982-05-14 |
| US4194207A (en) | 1980-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |