[理工] [控制]-頻率響應分析
2s+4
G(s) = -----------
s^2 + 4s + 20
當 輸入為 sin2t
求y(t) in a steady state
請問這種題目該用 |G(s)| sin (wt+∠G(s)) 求
2
還是 先求 --------- * G(s)
s^2 + 4
再反拉式呢?
兩者算出來答案不同 =.=
請問能比較一下差異以及個別的用途嗎?
謝謝
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