基于小波包技术和熵理论的航空故障电弧特征频段研究
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崔芮华,王绍敏,刘骉
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Research on the Characteristic Frequency Band of Aviation Arc Fault Based on the Wavelet Packet and Entropy
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Cui Ruihua,Wang Shaomin,Liu Biao
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表5 信息熵比值平均值
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Tab.5 The mean of information entropy ratio
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| 序号 | db6 | 子频段 | db8 | 子频段 | db10 | 子频段 | sym5 | 子频段 | sym7 | 子频段 | | 1 | 0.9 | 1 | 1.0 | 1 | 0.9 | 1 | 0.9 | 1 | 1.0 | 1 | | 2 | 1.1 | 69 | 1.1 | 77 | 1.1 | 69 | 1.1 | 2 | 1.2 | 77 | | 3 | 1.4 | 205 | 1.5 | 197 | 1.5 | 205 | 1.3 | 69 | 1.5 | 69 | | 4 | 1.5 | 77 | 1.5 | 69 | 1.6 | 77 | 1.3 | 77 | 1.5 | 197 | | 5 | 2.0 | 2 | 1.8 | 205 | 1.8 | 197 | 1.5 | 205 | 1.8 | 205 | | 6 | 2.1 | 197 | 3.6 | 2 | 4.4 | 206 | 1.6 | 197 | 2.7 | 2 | | 7 | 4.3 | 17 | 4.2 | 78 | 4.5 | 208 | 3.8 | 109 | 3.6 | 206 | | 8 | 4.3 | 75 | 4.6 | 203 | 4.6 | 79 | 4.3 | 110 | 4.3 | 75 | | 9 | 4.4 | 80 | 4.7 | 210 | 4.7 | 198 | 4.4 | 223 | 4.5 | 49 | | 10 | 4.5 | 223 | 4.8 | 204 | 4.8 | 207 | 4.5 | 49 | 4.7 | 78 |
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