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| Analysis of Pyrotechnic Shock Data Based on Ensemble Empirical Mode Decomposition |
| Received:December 19, 2024 Revised:February 11, 2025 |
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| DOI：10.7643/issn.1672-9242.2025.03.001 |
| KeyWord:ensemble empirical mode decomposition pyrotechnic shock intrinsic mode function shock response spectrum zero drift amplifier saturation |
| Author | Institution |
| FENG Lei |
Xi'an Institute of Modern Control Technology, Xi'an , China |
| LIU Xi |
Xi'an Institute of Modern Control Technology, Xi'an , China |
| XIE Long |
Xi'an Institute of Modern Control Technology, Xi'an , China |
| HE Xuan |
Xi'an Institute of Modern Control Technology, Xi'an , China |
| NING Jing |
Xi'an Institute of Modern Control Technology, Xi'an , China |
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| Abstract: |
| The work aims to analyze the measured abnormal large values of pyrotechnic shock data from artillery launching to obtain the real launching shock signal. The ensemble empirical mode decomposition (EEMD) was used to process the measured pyrotechnic shock data, to construct intrinsic mode functions of the shock data by adaptive method and remove the trend item from the original shock data. By processing the shock data from the artillery launching, the trend item in the shock data was eliminated effectively, and the real time domain signals and the shock response spectrum curve were obtained accurately. This study can provide an effective method for the time-frequency domain processing of the measured abnormal shock data. |
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