Aiming accuracy improvement of a warship cannon in consideration of ocean environments

In order to intercept an anti-ship missile by a warship cannon, the accurate prediction of an aiming point is very important. The two error sources degrading the aiming accuracy are target´s future acceleration and the ship´s motion due to ocean wave. The basic idea of the proposed method is that changing position and velocity of the cannon due to ship´s motion is considered as the offset of anti-ship missile´s position and velocity. In this way, the firing table of the cannon to determine the aiming point of the cannon in stationary state can be directly used without any calibration.