Vertical Trajectory Planning

To achieve missile erecting process run smoothly, this paper taking the arm vertex of the vertical bar as the object of the research. And it proposes a new method that polynomial interpolation is used to plan trajectory. By determining expressions of the trajectory of the various kinematic parameters, the graphic simulations of each variable are visually displayed in the paper. Further application of this method is made in SINS, and by programming the navigation solution, compared to the calculated results and the trajectory planned, the study verifies its influence on navigation precision in the inertial navigation. As the simulation results show, the method of Polynomial interpolation solves the problems of the conventional acceleration discontinuities. Therefore, the impact is much smaller as well as the deviation calculated by navigation solution, and the erecting process is more stable, furthermore the planned trajectory fits better, and the navigation accuracy is improved.