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
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Computer Networks & Wireless Communication
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General Physics & Mathematics
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Radar, Positioning & Navigation
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Remote Sensing
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Medicines That Contain Protein Lipid Enzymes And Other Medicines
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Appareil permettant d'etendre la portee d'utilisation d'un radar de surveillance secondaire passif a l'aide d'antennes directives commutees en synchronisme avec le faisceau tournant d'un radar de surveillance secondaire.
Procédé pour transmettre la position d'un point mobile au moyen d'impulsions électriques modulées en position et appareil pour la mise en oeuvre de ce procédé.