使用Matlab进行验证： %Use Matlab to test it %the range of values of tautau = [ 0 1 5 ];%the step response of the system for i = 1 : 3 k = tau( i ); num = [ 10 10 ]; den = [ 11+10*k,10,10 ]; sys = tf( num , den ); figure(i) if i == 1 t = 0 : 0.02 : 10; step( sys , t ); grid on; else if i == 2 t = 0 : 0.02 : 30; step( sys , t ); grid on; else t = 0 : 0.02 : 80; step( sys , t ); grid on; end end end 结果如下：
Figure one
Figure two
Figure three