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【多选题】
关于叶变换与短时叶变换的正确说法是（）。
A.
叶变换只适合于滤除或压缩具有近似周期性的信号
B.
叶变换能刻画信号时域的局部特性
C.
短时叶变换又称为窗口叶变换（ WFT ）
D.
短时叶变换的时间和频率分辨率不可能同时达到最高
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【判断题】分区分类存储原则,就是将存储区按某种规则划分为若干子区域,分别存放不同类别的货物。
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查看完整题目与答案
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