METHOD OF POSITIONING AN UNDERGROUND BEACON

Method of positioning an underground beacon (10) comprising the following steps: - installation on the surface of several surface beacons (20), each surface beacon comprising at least three non-coplanar coils (21A, 21B, 21C) for emitting and/or receiving second radio signals (100); - exchanging firs...

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Bibliographische Detailangaben
Hauptverfasser:	DEMIERRE, MICHEL, SCHLAGETER, VINCENT
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AMUSEMENTS ANALOGOUS ARRANGEMENTS USING OTHER WAVES APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING BALL GAMES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GAMES HUMAN NECESSITIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SPORTS TESTING TRAINING EQUIPMENT
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