基于小波包技术和熵理论的航空故障电弧特征频段研究
崔芮华,王绍敏,刘骉

Research on the Characteristic Frequency Band of Aviation Arc Fault Based on the Wavelet Packet and Entropy
Cui Ruihua,Wang Shaomin,Liu Biao
表2 三层小波包分解节点与子频段对应关系表
Tab.2 Table of corresponding relationship between three layers wavelet packet decomposition nodes and sub bands
节点 子频段 节点 子频段
(0,0) [0, fs/2] (3,1) [fs/24, 2fs/24]
(1,0) [0, fs/22] (3,2) [2fs/24, 3fs/24]
(1,1) [fs/22, fs/2] (3,3) [3fs/24, 4fs/24]
(2,0) [0, fs/23] (3,4) [4fs/24, 5fs/24]
(2,1) [fs/23, 2fs/23] (3,5) [5fs/24, 6fs/24]
(2,2) [2fs/23, 3fs/23] (3,6) [6fs/24, 7fs/24]
(2,3) [3fs/23, 4fs/23] (3,7) [7fs/24, 8fs/24]
(3,0) [0, fs/24]