Mitsubishi Electric Corporation

Fumiyoshi Murase

Makoto Yamaguchi

Masanobu Horimoto

The present disclosure obtains a correction value that corrects measurement angle error signals more accurately than conventional methods even in a case where a radio wave signal-to-noise ratio is low, and thus tracks a communication counterpart more accurately than the conventional methods. The present disclosure includes a program controllerthat generates a command value of an orientation direction of an antennaand outputs the generated command value to an antenna drive controller, the command value being changed in accordance with a predetermined change scenario; a correction value calculatorthat calculates a phase correction value &#x3b3;, based on at least three pieces of error measurement dataincluding (i) an arrival direction error obtained from a sum signal and a difference signal of reception signals, the arrival direction error representing a difference between the orientation direction and an arrival direction being a direction from which the radio waves come and arrive and (ii) an orientation direction actual measurement value being an actual measurement value of the orientation direction when the arrival direction error is obtained, the phase correction value &#x3b3; being an angle by which the arrival direction error is rotated; and a tracking controllerthat outputs, to the antenna drive controller, as the command value, a value obtained by adding the arrival direction error corrected based on the phase correction value &#x3b3; to the orientation direction actual measurement value.

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Chiyoda-ku, Japan

Fumiyoshi Murase