Open Access
表1
水下目标样本特征说明
| 特征名称 | 特征编号 |
| 过零率 | 1 |
| 能量 | 2 |
| 能量熵 | 3 |
| 谱质心 | 4 |
| 谱延展 | 5 |
| 谱熵 | 6 |
| 谱通量 | 7 |
| 谱滚降 | 8 |
| Mel频率倒谱系数 | 9~21 |
| 谐波比 | 22 |
| 基频 | 23 |
| 音色向量 | 24~35 |
| 一阶差分Mel频率倒谱系数 | 36~48 |
| 二阶差分Mel频率倒谱系数 | 49~61 |
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