Modeling and simulation for encounter model based on linear equivalent trajectory with aimed warhead

Modelling and simulation for aimed warhead anti-air missiles encountering targets has been researched. The second-order encounter model is carried out by least squares fitting based on control points, which is applied to solve the issues as low precision and poor adaptability of ideal linear encounter trajectory. For this model, a linear equivalent trajectory (LET) is proposed to reduce computation without losing encounter information, such as remaining flight time, missing distance and missing azimuth. Next, considering the attitude encounter, an equivalent damage plane (EDP) is established using the AH-64 helicopter, and the solving method of encounter parameters is also covered for the model including the LET and EDP information. Finally, the validity of the encounter model is demonstrated by applying the error analysis, especially in its accuracy.