一阶传递函数 G(s)=1/(3s+6) 一阶单位阶跃响应 >> nu m=[0,1]; >> den=[3,6]; >> step(nu m,den) 00.511.522.5300.020.040.060.080.10.120.140.160.18Step ResponseTime (sec)Amplitude 一阶单位脉冲响应 >> nu m=[0,1]; >> den=[3,6]; >>impu lse(nu m,den) 00.511.522.5300.050.10.150.20.250.30.35Impu lse ResponseTime (sec)Amplitude 二阶传递函数X 0(s)=25/(s²+2×ζ ×5s+25) 欠阻尼﹙ζ =0.5﹚ >> num=[0,25] >> den=[1,0.5,25] >> step(num,den) 051015202500.20.40.60.811.21.41.61.82Step ResponseTime (sec)Amplitude 临界阻尼（ζ =1） >> num=[0,25] >> den=[1,1,25] >> step(num,den) 02468101200.20.40.60.811.21.41.61.8Step ResponseTime (sec)Amplitude 过阻尼状态（ζ =1.4） >> num=[0,25] >> den=[1,1.4,25] >> step(num,den) 01234567800.20.40.60.811.21.41.61.8Step ResponseTime (sec)Amplitude 负阻尼状态（ζ =-1.3） >> num=[0,25]; >> den=[1,-1.3,25]; >> step(num,den) 00.511.522.533.54-15-10-50510Step ResponseTime (sec)Amplitude
