英文试题
1.(20 分)The discrete-time system is shown in the following 
figure, ()
s(0.1 1) k
Gs
s
, T=0.1. 
(1) Obtain the closed-loop impulsive transfer function. (2) Determine the stable range of k. (3) If k=1, Obtain e(∞) for r(t)=1(t)+t. (Note: 368 0.1 e )
                                    
                                    
                                        
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