Research on Evaluation Index of Anti-Jamming Performance of Guidance System Based on Line-of-Sight Angular Velocity Accuracy

Abstract

In response to the problem that traditional anti-interference performance evaluation indices are concentrated at the level of missile guidance systems, which cannot meet the anti-interference performance evaluation of guidance systems, based on the analysis of the internal error transmission principle of guidance systems during the anti-interference process and the measurement error of guidance systems, this paper proposes a guidance system anti-interference performance evaluation index based on line of sight angular velocity accuracy, so as to evaluate its anti-interference performance timely in the development process of guidance systems.Due to the difficulty for measurement of the line-of-sight angular velocity accuracy in field experiments, in order to improve the testing efficiency, a simplified calculation method for line-of-sight angular velocity accuracy is proposed based on the principle of proportional guidance. Furthermore, for non proportional guidance scenarios, an equivalent testing method for line-of-sight angular velocity accuracy using recognition time is given. The results of field data testing indicate that the indices can reflect the anti-interference performance of missile in different scenarios, and this method has certain rationality.

Keywords

• |line-of-sight angular velocity|anti-jamming|guidance system|recognition time|performance index|missile