FIELD: radio engineering, communication.
SUBSTANCE: terminal performs uplink transmission of a message incorporated into a modulated signal to a communication satellite with a multi-beam antenna at a frequency shared by at least three different uplink beams such that said message is received by said communication satellite with a multi-beam antenna via said multi-beam antenna with three different amplitudes; said communication satellite with a multi-beam antenna performs downlink transmission of three modulated signals incorporating said message, each of the first, second and third signals corresponding to a different beam from among said three beams; a terrestrial receiver receives said first, second and third signals; a terrestrial computer determines the amplitudes of the message sent by the terminal incorporated into said first, second and third signals; the location of the terminal is determined from the amplitudes of said message from said first, second and third signals.
EFFECT: high accuracy of locating a terminal on the surface of a coverage area.
10 cl, 9 dwg
