Comparison of the Notable Acceleration- and Angle-Based Guidance Laws for a Short-Range Air-to-Surface Missile

Abstract

AbstractIn this study, the velocity pursuit, proportional navigation, and augmented proportional navigation guidance laws whose resulting guidance commands are in the form of lateral acceleration are applied on a short-range air-to-surface missile as well as the body pursuit and linear homing guidance laws which yield angular commands and the attained results are then compared. In the end of the mentioned evaluations in which the final miss distance of the considered missile from the intended target, missile-target engagement time, and maximum lateral acceleration requirement of the missile are chosen as the comparison criteria, it is seen that angle-based guidance laws lead the final miss distance values to become smaller than those with the acceleration-based laws although the maximum lateral acceleration requirements of the angle-based laws are greater. For the missile-target engagement time parameter, almost the same results are obtained for both kinds of the guidance laws. In the scope of the study, an angle control system whose bandwidth reaches to its desired value in an increasing manner within a specified duration is proposed for the lateral motion of the missile in order to lower the lateral acceleration requirement posed by the angle-based guidance laws.