Guidance Augmentation for improved Target Visibility

The paper describes the synthesis of a new guidance law, which aims at keeping high visibility of a target during the engagement. The scenario under consideration is a urban environment with a known obstacle distribution. A probabilistic target visibility map is defined, and a guidance law is developed, which moves the vehicle in the direction of increasing visibility while chasing the target. The approach is verified with several simulation examples with moving targets, showing that the performance of a standard guidance such as Proportional Navigation can be obtained even in the presence of obstacles along the line of sight. In addition, simulations are presented in the case of evasive action by the target.