| 液体火箭发动机启动段振动信号的小波去噪 |
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| 引用本文： | 杨懿,李薇.液体火箭发动机启动段振动信号的小波去噪[J].火箭推进,2012,38(5):77-80. |
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| 作者姓名： | 杨懿 李薇 |
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| 作者单位： | 北京航天试验技术研究所,北京,100074 |
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| 摘 要： | 液体火箭发动机试验启动段的振动信号中包含有大量的噪声分量,通过小波变换的Mallat算法对振动信号进行去噪处理,并通过试车数据对采用的方法进行验证,取得了良好效果,显示了小波去噪在振动信号去噪领域的广泛应用前景。
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| 关 键 词： | 液体火箭发动机 小波变换 振动信号 Mallat算法 |
Wavelet transform based denoising of vibration signal generated in ignition shock section of liquid rocket engine |
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| YANG Yi,. LI Wei.Wavelet transform based denoising of vibration signal generated in ignition shock section of liquid rocket engine[J].Journal of Rocket Propulsion,2012,38(5):77-80. |
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| Authors: | YANG Yi LI Wei |
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| Institution: | (Beijing Institute of Aerospace Testing Technology, Beijing 100074, China) |
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| Abstract: | There are strong noise components in the vibration signal generated in ignition shock section during liquid rocket engine test. A Mallat algorithm based on wavelet transform is proposed in this paper for denoising of vibration signal. This denoising method was verified with the actual testing data. The obtained result is satisfied, and shows the promising future of this method in the field of vi- bration signal denoising. |
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| Keywords: | liquid rocket engine wavelet transform vibration signal Mallat algorithm |
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