[問題] 訊號time invariant定義
※ [本文轉錄自 Grad-ProbAsk 看板 #1HYCYewO ]
作者: discipile (DIS) 看板: Grad-ProbAsk
標題: [理工] 訊號
時間: Tue May 7 17:25:58 2013
題目是這張圖片的P-5.9
http://i.imgur.com/dbfTqsM.jpg
我的疑問是第a個位甚麼不是time-invariant
解答在這邊
http://i.imgur.com/yKwdAsk.png
可能我沒有看懂解答,也有可能解答錯了,求解惑
謝謝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.123.112.13
※ 發信站: 批踢踢實業坊(ptt.cc)
※ 轉錄者: discipile (140.123.112.13), 時間: 05/07/2013 17:48:12
→
05/07 19:15, , 1F
05/07 19:15, 1F
→
05/07 21:23, , 2F
05/07 21:23, 2F
推
05/07 22:23, , 3F
05/07 22:23, 3F
→
05/07 22:24, , 4F
05/07 22:24, 4F
→
05/07 22:35, , 5F
05/07 22:35, 5F
推
05/07 23:49, , 6F
05/07 23:49, 6F
→
05/07 23:51, , 7F
05/07 23:51, 7F
→
05/07 23:52, , 8F
05/07 23:52, 8F
→
05/07 23:52, , 9F
05/07 23:52, 9F
→
05/07 23:53, , 10F
05/07 23:53, 10F
→
05/07 23:54, , 11F
05/07 23:54, 11F
→
05/08 18:17, , 12F
05/08 18:17, 12F
→
08/13 19:38, , 13F
08/13 19:38, 13F
→
09/17 23:31, , 14F
09/17 23:31, 14F