Adaptive proportional navigation under side window detection

This paper investigates the guidance and control problem for missile with the seeker mounted in the side window. To effectively coordinate the flight trajectory and attitude of missile, expand the detection range of target and enhance guidance accuracy, a novel guidance law based on the adaptive technique is proposed. And the navigation ratio changes adaptively as the missile lead angle varies. Numerical simulation results show that the applicability of adaptive proportional navigation is wider than that of parallel navigation and conventional proportional navigation, thus, the guidance law proposed in this paper has a better combination property.