Re: [理工] [工數] 98台聯大工數C
※ 引述《OKOK98 (UTN)》之銘言:
: Let x(t)=cos(t)u(t) where u(t) denotes the unit step (Heaviside step)
: function.Find the concatenated convolution x(t)*u(t)*u(t-1) using
: Laplace transform method ,where * is the convolution operator.
L{ x(t)*u(t)*u(t-1) }
s 1 1 -s
= ───── ── ── e
s^2 + 1 s s
-s 1 -s
= (──── + ────) e
s^2 + 1 s
-1
L => u(t-1) - cos(t-1) u(t-1)
--
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 218.161.122.147
推
09/18 14:53, , 1F
09/18 14:53, 1F
討論串 (同標題文章)
本文引述了以下文章的的內容:
完整討論串 (本文為第 2 之 2 篇):