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ULTRASONIC BINAURAL METHOD FOR MEASUREMENT OF SPATIAL COORDINATES

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Figure

Fig.1. Measurement principle of the spatial  coordinates of mobile object
Fig. 3. Ultrasonic coded M-sequence received at 1 m from the mobile unit
Fig.4. Cross-correlation function of the experimental measurement: a – short distance (5 m); b – long distance (20 m); c – propagation of ultrasound waves
Fig.5. Scanning direction of the mobile  unit during measurements

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