| 摘要 |
PURPOSE:To make it possible to know velocity vector at an arbitrary position of a hull and concurrently to know a turning state of the hull in sailing. CONSTITUTION:A difference between a velocity VPSB in the lateral direction obtained by a transmitter-receiver 14 in the bow part and a velocity VPSS in the lateral direction obtained by a transmitter-receiver 16 in the stern part is divided proportionally in accordance with a position based on a hull and thereby a velocity VPSn in the lateral direction at an arbitrary position Pn is determined. This velocity VPSn is made composite on a vector basis with a velocity VFA in the longitudinal direction obtained by the transmitter-receiver 14 in the bow part and thereby a velocity vector Vn at the arbitrary position Pn is determined. Besides, an angular velocity omega is determined by dividing the difference between the velocities VPSB and VPSS by a space L between the transmitter-receivers. These are displayed on a screen of a display unit 26. |
