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例 5.1

例 5.1. 其中： 20lgK=20lg20=26dB. 自阅 ; 了解几何 中点及其应用. 例 5.2.  3. K. 例 5.3. 例 5.4. （注意解题技巧！ 此处方法太繁 ! ）. 例 5.5. 由频率特性可得：.  c =12. 相频特性为. - τ s. -j  τ. -j  τ. 例 5.6. 例 5.7. 1. >. 1. >. 例 5.8. 判断闭环系统的稳定性，并求  、 h. ( 了解 ). 例 5.9.

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例 5.1

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  1. 例5.1 其中： 20lgK=20lg20=26dB

  2. 自阅;了解几何 中点及其应用 例5.2

  3. 3 K

  4. 例5.3

  5. 例5.4 （注意解题技巧！此处方法太繁!）

  6. 例5.5

  7. 由频率特性可得： c=12 相频特性为

  8. -τs -j τ -j τ

  9. 例5.6

  10. 例5.7

  11. 1 > 1 > 例5.8 判断闭环系统的稳定性，并求 、h.

  12. (了解) 例5.9

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