Rockets A Guidance Method

Wide range and high precision is the trend of contemporary weapon. Firstly, precise hitting ammunition is missile, but it can' t wildly be equipped becauseof costliness. At present, simpile control technique is the best method foradvancing the precision of low-cost ammunition at home and abroad. It hassignality to research.This paper aims at a simpile control technique for rockets, adopt the radarin the ground as measure system, which measures the practical information onthe trajectory. Compare the information between pratical trajectory andfiducial trajectory, estimate terminal windage of the trajectory, choose howmany impulse engines work and what orientation, alter flight pose of thepill, and minish terminal windage of the trajectory.This paper takes one low-speed-circumgyrate rocket with a empennage asa research object, set up a relevant reference frame, analyse the strength andmoment on the amended rocket, ratiocinate the sports equation with 6 DOF; analyse the factors which cause terminal windage between pratical trajectoryand fiducial trajectory, take certain rocket for example, make use of theemluator on the influence of estimating precision caused by measuredinformation, find the speed, the trajectory obliquity, the trajectory setoverand the coordinate are the sensitive factor arosing terminal windage of thetrajectory; introduce the developing status of detecting technique, and basedon the actuality, choose the radar in the ground as measure equipment; simplydesign and analyse the setting and inflame control of the impulse engine onthe amended rocket; design the amend method and validate its feasibility takingthe use of emluator.