Design of missile combined terminal guidance law

Abstract:
Based on the advantages and disadvantages of the traditional proportional guidance and tracking methods, Takehira of the University of Michigan in the United States proposed a combined guidance law with proportional guidance and tracking guidance, expecting to obtain a guidance law with the characteristics of the combined tracking method and the proportional guidance method. Based on this combined guidance law, the content of this paper is to explore the trajectory changes after the proportional guidance fusion tracking method by simulating its trajectory, normal overload, hit time and miss distance. The simulation results show that the combined guidance combines the characteristics of the two guidance methods. From the perspective of trajectory, normal overload and hit time, the combined guidance law is inferior to the proportional guidance law, and the stronger the target mobility, the worse the combined guidance performance. However, the combined guidance law is superior to the proportional guidance law in terms of anti-interference and miss distance. The miss distance is the deviation of the actual trajectory of the missile from the theoretical trajectory in the target plane.