Abstract:

Micro-motion identification of the decoy in midcourse of ballistic missile has aroused general interest in current society, and decoy’s structure, quality distribution, initial state and external force are essential to the micromotion property of the decoy. The micromotion model of the decoy, including the selfspin, procession and nutation, is established based on the quality, geometrical character and initially released state. With a deep research into the micromotion model and theoretical derivation, the change rate of the attitude angle, selfspin period, nutation angle and nutation angle rate are achieved. Numerical simulations demonstrate the effectiveness of the proposed approach, which can act as a basis for the target identification in comparison with the micromotion property of warhead.