A study on pulse engine correction strategy of a mortar projectile

Mortar projectile with end trajectory guidance using pulse jet engine, is considered as a smart missile of higher hit rate of point targets and low-cost. In this paper, we study the pulse engine correction strategy of mortar projectile. During the mortar projectile guidance process, the angle of line-of-sight is coupled greatly with the oscillation of attack angle of and sliding angle. Thus, the measurement is corrupted badly. To solve this problem, a decoupling control algorithm based on least square method is proposed. Further, the study of the pulse engine start threshold and tactics is also presented, according to the line-of-sight angle error information. The simulation results show the accuracy and availability of this algorithm.