Fujitsu Ten Limited

Masahiro Tokutsu

Tokio Shinagawa

Masayuki Kishida

The present invention relates to a radar unit and provides a radar angle correction method for correcting an error in a radar angle caused by the front cover of an antenna. The radar angle correction method comprises the steps of: measuring a peak power of a beam received from a reference target at each of a plurality of radar angles; plotting a theoretical quadratic curve whose beam width corresponds to a value specified for the radar and whose peak indicates an average of peak values; adopting a difference between a theoretical value indicated by the theoretical quadratic curve and a received beam power as a correction value with which the received beam is corrected; and subtracting the correction value from the received beam power.

Radar angle correction method

In a target merging process in a radar ranging device, determination of continuity is accurately performed and output processing of newly appearing targets is performed rapidly. The current target position (data prior to merging) is calculated (S ), and a predicted position is calculated (S ). The continuity of targets whose previous position and current position satisfy predetermined conditions (S to S ) is determined (S to S ). After the data prior to merging is stored in a buffer (S ), the merging process is performed. By storing the data prior to merging in the buffer, continuity is determined for each detected target and, therefore, even if the position of a target changes after merging, subsequent determination of continuity can be performed accurately.

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Kobe, Japan

Masahiro Tokutsu