| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent scale enlargement of a hardware composition in a radar device where conventionally, a V-beam system radar device measuring a three- dimensional position of a target by using two two-dimensional fan beams needed two antennas to form a V-shaped beam. SOLUTION: When the radar device 21 radiating a single fan beam 26 is mounted on a ship and subjected to oscillation, an inclination of the fan beam 26 changes by the oscillation, and altitude information of the target is calculated using this. Namely, when an inclination angleΦof the fan beam 26 changes in continuous scanning, an altitude h of the target 22 can be calculated on the basis of the inclination angleΦand a difference (Θ1-Θ2) of radar bearings detecting the target 22 in each scanning. By this, three-dimensional information of the target position can be provided by a hardware composition of a two-dimensional radar.</p> |
