信号[img=120x27]1802d523d140896.png[/img]的傅里叶变换等于
A: [img=50x46]1802d523d995de2.png[/img]
B: [img=50x47]1802d523e146a9c.png[/img]
C: [img=42x47]1802d523ea254f0.png[/img]
D: [img=117x46]1802d523f33e5ac.png[/img]
A: [img=50x46]1802d523d995de2.png[/img]
B: [img=50x47]1802d523e146a9c.png[/img]
C: [img=42x47]1802d523ea254f0.png[/img]
D: [img=117x46]1802d523f33e5ac.png[/img]
举一反三
- 信号[img=120x27]1803c96bf3492b8.png[/img]的傅里叶变换等于 A: [img=50x46]1803c96bfbe4545.png[/img] B: [img=50x47]1803c96c0483e3b.png[/img] C: [img=42x47]1803c96c0d1dc65.png[/img] D: [img=117x46]1803c96c1498e97.png[/img]
- 信号[img=120x27]180378142e737b4.png[/img]的傅里叶变换等于 A: [img=50x46]1803781437e175a.png[/img] B: [img=50x47]18037814408683a.png[/img] C: [img=42x47]18037814497c6c7.png[/img] D: [img=117x46]18037814531ed5b.png[/img]
- 信号[img=120x27]1803bd25c980ce4.png[/img]的傅里叶变换等于 A: [img=50x46]1803bd25d1dc1cd.png[/img] B: [img=50x47]1803bd25da4f110.png[/img] C: [img=42x47]1803bd25e2f96fe.png[/img] D: [img=117x46]1803bd25ebf3458.png[/img]
- 信号[img=120x27]1803bf944400483.png[/img]的傅里叶变换等于 A: [img=50x46]1803bf944c34f12.png[/img] B: [img=50x47]1803bf94543fcab.png[/img] C: [img=42x47]1803bf945c645e8.png[/img] D: [img=117x46]1803bf946501b15.png[/img]
- 信号[img=120x27]1803623a58632b2.png[/img]的傅里叶变换等于 A: [img=117x46]1803623a60d3ad6.png[/img] B: [img=42x47]1803623a69f3bc3.png[/img] C: [img=50x47]1803623a725a716.png[/img] D: [img=50x46]1803623a7a71721.png[/img]