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ELMER-FRANCIS CASSEL
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ELMER-FRANCIS CASSEL
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Publication of FR422865ApublicationCriticalpatent/FR422865A/fr
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
G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
G01S5/20—Position of source determined by a plurality of spaced direction-finders
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Physics & Mathematics
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Engineering & Computer Science
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General Physics & Mathematics
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Radar, Positioning & Navigation
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Remote Sensing
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FR422865A1910-11-221910-11-22Système et appareils pour déterminer la position du point d'émission d'un signal acoustique quelconque
ExpiredFR422865A
(fr)