Abstract
Based on the ballistic characteristics of underwater rockets, the initial ballistic acceleration identification, dynamic pressure threshold and the fixed revolution number of sensitive turbine were chosen as three environmental excitation arming signal. Safety and arming logic circuit to meet the rocket ballistic characteristics was designed and using the Markov theory to model and analyze the circuit. A good match was achieved between ambient arming excitation with arming insurance and logic. And the safety of the whole trajectory was ensured. Finally, the circuit simulation experiments was designed, the results show that the circuit can meet the safety requirements of the fuze.
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