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| Correction of Zero-shift Signal under Pyroshock Environment |
| Received:December 22, 2017 Revised:May 25, 2018 |
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| DOI：10.7643/ issn.1672-9242.2018.05.002 |
| KeyWord:pyroshock zero-shift signal relevance analysis shock response spectrum |
| Author | Institution |
| ZHANG Jun |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| NIU Bao-liang |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| HUANG Han-jun |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| HUANG Hai-ying |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| WANG Jun-ping |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| YUE Xiao-hong |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
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| Abstract: |
| Objective To propose a method for pyroshock data processing to reduce the influence of the zero-shift trend in pyroshock signal. Methods Null drift trend items of tested data were obtained based on segmentation linear fitting thought. The influence of the segmentation number on the results of integration and spectrum analysis was discussed by relevance analysis between the original signal and validated one. Then, the correction principles on pyroshock acceleration signal were given. Results Effective analysis and correction on experimental data could restrain the zero-shift trend and reduce the influence of null shift trend on shock spectrum. Conclusion The method can improve accuracy and validation of experimental data. |
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