固体发动机点火冲击段信号小波变换分析 |
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引用本文: | 刘钊. 固体发动机点火冲击段信号小波变换分析[J]. 固体火箭技术, 2001, 24(4): 72-74 |
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作者姓名: | 刘钊 |
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作者单位: | 中国航天科技集团公司四院401所, |
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摘 要: | 基于传统信号处理方法对非平稳信号的局限性,利用小波方法具有精确分频的特点,进行了固体火箭发动机点火冲击段这一典型的非平稳信号的动态特性信号的提取,仿真及针对实际信号的处理均表明本方法具有很好的去除噪声能力。
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关 键 词: | 小波变换 固体推进剂火箭发动机 点火试验 动态数据处理 振动信号 |
文章编号: | 1006-2793(2001)04-0072-03 |
修稿时间: | 2000-03-07 |
The wavelet transformation analysis for vibration signal of ignation sh ock section of SRM |
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Abstract: | In consideration of the limitation traditional method for unstable signal precessing,the feature of dividing frequency accurately of wavelet transformation was made use of to extract the dynamic characteristic information of vibration signal in ignition shock section of SRM.Simulation and actual signal processing show that the method has the ability to eliminate noise. |
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Keywords: | wavelet transformation solid propellant rocket engine ignition test dynamic signal processing vibration signal |
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