Improved travel calculation method for high-speed carriers penetrating objects

Abstract

To improve the accuracy of travel calculations during the penetration of objects by high-speed carriers, this paper proposes a method for processing acceleration data during the penetration process. Through simulation, penetration acceleration data were obtained, and Fourier Transform was employed to analyze the time-frequency characteristics of these data. Given that penetration acceleration signals are often contaminated by high-frequency oscillatory noise, a novel signal processing approach is introduced. Using a controlled variable method in simulation, the frequency boundary between high-frequency noise and useful signals was identified. After applying a low-pass filter with a cutoff frequency of 10 kHz, the simulation results indicated that the processed signal provides sufficiently accurate travel information. On the hardware side, a specialized signal conditioning circuit was designed for the acceleration sensor signals, and its effectiveness was verified through Machette hammer experiments. Additionally, semi-physical simulation tests further confirmed the accuracy of the proposed travel calculation method. The results demonstrate that the improved method presented in this paper can significantly enhance the precision of travel calculations during the penetration of objects by high-speed carriers.