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自 动 控 制 原 理第 七 章 采 样 数 据 控 制 系 统 分 析Tc * (t)r(t) ( ) e(t) ( )_TG 1 (s)b * (t)d(t) ( )Td * (t)G 2 (s)c(t)H(s)所 以 Dz( )因 为采 样 后GR z1=1 +GG 1 2 H( )( )1 GG H z( ) ( ) *=( )Cs G sD s2( ) = ( ) ( )C s G s D s* * *2

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