傅里叶变换
線性積分轉換
1分钟阅读
为什么这是热门
Interest in “傅里叶变换” spiked on Wikipedia on 2026-02-25.
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2026-01-28峰值：32026-02-24
30天总计：17
要点总结
- 傅里叶变换 是一种线性变换，通常定义为一种积分变换。
傅里叶变换 是一种线性变换，通常定义为一种积分变换。其基本思想是一个函数可以用 无穷多个周期函数的线性组合来逼近，从而这些组合系数在保有原函数的几乎全部信息的同时，还直接地反映了该函数的“頻域特征”。
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