[課業] 通訊系統/FM單頻信號:－2016徵求年菜推薦網路訂購最紅的商家.年菜訂購?台北年菜外送餐廳推薦(年菜)?年菜.今年不想做年菜推薦,網路宅配哪一家好?

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[課業] 通訊系統/FM單頻信號

Nov 21st 2013, 11:41, by TFNF

作者TFNF (帕妮飯)

站內Examination

標題[課業] 通訊系統/FM單頻信號

時間Thu Nov 21 11:41:30 2013

http://miupix.cc/pm-8UYN92 請問最後求Cn時積分上下限是如何從 1/2fm轉變成pi 謝謝 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 49.219.105.66

推 jdtrue:你把t=1/(2fm)帶進去就是了下界亦然 11/21 11:56

→ TFNF:為何t可以用1/2fm帶入呢？ 11/21 12:05

推 JengHau:這部分吃數學吃很重,但大多是傅立列轉換問題,建議去翻翻工 11/21 12:14

→ JengHau:數回想一下,然後再想想為何要求出Cn,有時換個方向想會突破 11/21 12:15

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