Performance Analysis of Conventional and Modified Proportional Navigation Guidance Laws for a Random Maneuvering Targeta

임의의 방향조정을 하는 목표물에 대한 비례항법 및 수정비례항법의 성능분석

In this paper, we consider conventional and modified proportional navigation guidance(PNG) laws for a random maneuvering target. By means of Lyapunov function approach, we show that an ideal missile guided by the conventional PNG law can always intercept a random maneuvering target if some specified initial conditions are satisfied and the navigation constant is chosen sufficiently high. In addition, we propose a modified PNG law. At the final phase of pursuit, the proposed guidance law has a better acceleration profile than the conventional PNG law.