FIELD: radio engineering, communication.
SUBSTANCE: navigation system for an enclosed space includes: a) a satellite signal receiving station, positioned outside the enclosed space, designed to receive satellite signals transmitted by a set of satellites and to determine time synchronisation information relative to the transmitted signals; b) a local transmitting station, positioned within the enclosed space, designed to transmit a local signal compatible with the transmitted satellite signals; and c) a communication channel designed to transmit self-alignment information between each of the stations and another station. Each local transmitting station uses the self-alignment information to generate said local signal; and the local signal provides navigation information useable by a satellite navigation receiver.
EFFECT: high accuracy of determining coordinates.
19 cl, 15 dwg
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