Study of algorithm for the ship´s instantaneous linear movement information based on SINS

Based on the important problem of the safe flying-off and landing of the warship-based aircrafts, this paper deeply analyze the ship´s linear movement characteristic and its calculation algorithm which can be realized by SINS. Firstly, the instantaneous linear movement is described by involving a new standard coordinate system. Then the linear movement information calculation algorithm based on SINS is given. By designing suitable high pass filter, the ships high frequency linear movement is properly extracted from the whole linear information. At last, the algorithm is certified by computer simulation and experimentation. Simulation and experimentation results show that this method can extract the high frequency linear movement information properly.