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自 动 控 制 原 理第 八 章 状 态 空 间 分 析 法例 设 系 统 为& 1 1⎡ x⎤ ⎡ 1 1 ⎤ ⎡ x⎤⎡ 0⎤⎢ ux⎥ = ⎢ ⎢ +22 1 x⎥−⎥ ⎢21⎥⎣ & ⎦ ⎣ ⎦⎣ ⎦ ⎣ ⎦试 判 别 该 系 统 的 能 控 性 。解 : ⎡1 1 ⎤ ⎡0 ⎤ ⎡ 1⎤A= ⎢ , B = ; AB =−⎥ ⎢ ⎥ ⎢−⎥⎣2 1 ⎦ ⎣1 ⎦ ⎣ 1⎦⎡0 1 ⎤所 以M = [ B AB] = ⎢1 −1⎥⎣ ⎦因 为 rankM=2, 所 以 该 系 统 是 不 能 控 的 。

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