FR2281575A1 - Appareil localisateur de sources radioelectriques - Google Patents
Appareil localisateur de sources radioelectriquesInfo
- Publication number
- FR2281575A1 FR2281575A1 FR7427250A FR7427250A FR2281575A1 FR 2281575 A1 FR2281575 A1 FR 2281575A1 FR 7427250 A FR7427250 A FR 7427250A FR 7427250 A FR7427250 A FR 7427250A FR 2281575 A1 FR2281575 A1 FR 2281575A1
- Authority
- FR
- France
- Prior art keywords
- antenna system
- antennae
- appts
- receiver
- source location
- 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
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
- G01S3/22—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 derived from different combinations of signals from separate antennas, e.g. comparing sum with difference
-
- 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
- G01S3/28—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
- G01S3/32—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics derived from different combinations of signals from separate antennas, e.g. comparing sum with difference
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7427250A FR2281575A1 (fr) | 1974-08-06 | 1974-08-06 | Appareil localisateur de sources radioelectriques |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7427250A FR2281575A1 (fr) | 1974-08-06 | 1974-08-06 | Appareil localisateur de sources radioelectriques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2281575A1 true FR2281575A1 (fr) | 1976-03-05 |
FR2281575B1 FR2281575B1 (fr) | 1978-04-28 |
Family
ID=9142160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7427250A Granted FR2281575A1 (fr) | 1974-08-06 | 1974-08-06 | Appareil localisateur de sources radioelectriques |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2281575A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2523375A1 (fr) * | 1982-03-10 | 1983-09-16 | Europ Agence Spatiale | Dispositif de compensation des distorsions des reflecteurs pour antennes de reception et/ou transmission d'ondes a faisceaux multiples |
WO1986000998A1 (fr) * | 1984-07-27 | 1986-02-13 | Selenia Spazio | Systeme de poursuite a antenne avec commutation sequentielle de lobes |
EP0247370A2 (fr) * | 1986-05-29 | 1987-12-02 | E-Systems Inc. | Procédé et appareil de détermination de la direction à l'aide d'une antenne-cadre sans ambiguité |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2659082A (en) * | 1946-04-30 | 1953-11-10 | Paul A Pearson | Radio direction finder |
-
1974
- 1974-08-06 FR FR7427250A patent/FR2281575A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2659082A (en) * | 1946-04-30 | 1953-11-10 | Paul A Pearson | Radio direction finder |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2523375A1 (fr) * | 1982-03-10 | 1983-09-16 | Europ Agence Spatiale | Dispositif de compensation des distorsions des reflecteurs pour antennes de reception et/ou transmission d'ondes a faisceaux multiples |
WO1986000998A1 (fr) * | 1984-07-27 | 1986-02-13 | Selenia Spazio | Systeme de poursuite a antenne avec commutation sequentielle de lobes |
US4963890A (en) * | 1984-07-27 | 1990-10-16 | Selenia Spazio S.P.A. | Antenna tracking system using sequential lobing |
EP0247370A2 (fr) * | 1986-05-29 | 1987-12-02 | E-Systems Inc. | Procédé et appareil de détermination de la direction à l'aide d'une antenne-cadre sans ambiguité |
EP0247370A3 (fr) * | 1986-05-29 | 1989-07-19 | E-Systems Inc. | Procédé et appareil de détermination de la direction à l'aide d'une antenne-cadre sans ambiguité |
Also Published As
Publication number | Publication date |
---|---|
FR2281575B1 (fr) | 1978-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |