Abstract
This paper presents an intercept angle guidance law against moving targets in an environment with several static obstacles. The guidance law is derived based on linearized kinematics model. By minimizing the guidance effort subjected to the conditions where the target is intercepted at the specified impact angle and the obstacles are avoided by specified minimum distances, the basic guidance algorithm is obtained. The special cases of one and two obstacles are separately considered. The proposed guidance law has a form similar to that of augmented proportional navigation guidance with some additional bias terms. These bias terms correspond to the correction for the impact angle error and the generation of the required maneuvers to avoid the obstacles. Finally, numerical simulations are used to illustrate the efficacy of the proposed guidance law.
Published Version
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