State Estimation of Initiating Explosive Device Based on Extended Kalman Filter

The initiating explosive warhead system in this paper is a nonlinear system, and the ordinary filter is difficult to estimate the rotation state of the warhead. Therefore, the extended Kalman filter is used to estimate the system state in this paper. The third-order state space equation of the initiating explosive drive system is established. The warhead rotation angle is taken as the measured value, and the signal-to-noise ratio before and after filtering is taken as the measurement standard of the filtering estimation effect. The experimental results show that the extended Kalman filter can effectively estimate the rotation state of the initiating explosive drive system.