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自 动 控 制 原 理6. 正 弦 信 号 :第 七 章 采 样 数 据 控 制 系 统 分 析设 e(t) ( ) = sinω t, 因 为1 jωT− jωTsin ω t=(e −e )2j所 以1∞jωkT −jωkT −k( ) = ∑ (e − e )zk=02jE z1⎡= −2j⎢⎣∞∞∑jωkT −k j kT k(e z ) ∑− ω −(e z)k= 0 k=0⎤⎥⎦

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