[理工] [線性系統]

看板Grad-ProbAsk作者 (fonlintw0621)時間15年前 (2009/11/22 16:46), 編輯推噓1(100)
留言1則, 1人參與, 最新討論串1/1
The impulse reponse of an ideal lowpass filter is given by sin2w(t-t0) g(t) = 2w -------------------- 2w(t-t0) for all t , where w and t0 are constant. Is the ideal lowpass filter causal ? Is it possible to build the filter in the real world ? 沒有頭緒 有請高手。 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.36.211.193

11/22 18:06, , 1F
並非causal (在t<0時,g(t)不一定為0)
11/22 18:06, 1F
文章代碼(AID): #1B2Ff9lw (Grad-ProbAsk)