Evaluation Index of Disturbance Superposition Degree in Multi-layer Penetration Acceleration Signal

The evaluation indexes of layer and inter-layer coefficients for the signal superposition degree is presented to solve lack of measurement criterion of inter-layer superposition in multi-layer penetration acceleration signal. The test and simulated signals are segmented by penetration layers. The layer and inter-layer coefficients of acceleration signal for each layer are calculated by subtracting every amplitude of signal points by former one and summing the absolute values of difference values. The larger the two sets of evaluation indexes are, the more severer the superposition degree is. The calculated results of test and simulated signals are used to demonstrate the efficiency of evaluation indexes. The calculated results of layer and inter-layer coefficients in 3 sets of data show that the layer and inter-layer coefficients are smaller if the disturbance superposition degree is lower, and vice versa. One set of data is extracted from the calculated results of evaluation indexes of acceleration signal for two detonation control circuits in one penetration warhead, and the calculated deviation is less 5%. The calculated result is consistent to the results of qualitative analysis and spectral analysis. The experimental results show that the layer and inter-layer coefficients are efficient for evaluating the disturbance superposition degree in multi-layer penetration acceleration signal. © 2022, Editorial Board of Acta Armamentarii. All right reserved.