6s+0.4599)Continuous-timezero/pole/gainmodel.3.已知三个系统的传递函数分别为试用MATLAB求上述三个系统串联后的总传递函数。实验代码:%Eg_0_1_3num1=[2,6,5];den1=[1,4,5,2];G1tf=tf(num1,den1)%表示G1,传递函数模型num2=[1,4,1];den2=[1,9,8,0];G2tf=tf(num2,den2)%表示G2,传递函数模型z3=[-3,-7];p3=[-1,-4,-6];k3=[5];G3zpk=zpk(z3,p3,k3)%表示G3,零极点增益模型G=G1tf*G2tf*G3zpk;%表示串联总函数GGtf=tf(G)%G转化为传递函数模型实验结果:G1tf=2s^2+6s+5---------------------s^3+4s^2+5s+2Continuous-timetransferfunction.G2tf=s^2+4s+1-----------------s^3+9s^2+8sContinuous-timetransferfunction.G3zpk=5(s+3)(s+7)-----------------(s+1)(s+4)(s+6)Continuous-timezero/pole/gainmodel.Gtf=10s^6+170s^5+1065s^4+3150s^3+4580s^2+2980s+525-----------------------------------------------------------------------s^9+24s^8+226s^7+1084s^6+2905s^5+4516s^4+4044s^3+1936s^2+384sContinuous-timetransferfunction.4.已知如图E2-1所示的系统框图
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