transfer function plot problem

Question

fima v 2019-9-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/478793-transfer-function-plot-problem

评论： fima v 2019-9-4

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Hello, I have extracted the poles and zeros of a circuit which have the following response shown in a plot bellow.

the POLES and ZEROS of the circuit are attached.

however when i tried to put them into a transfer function expression as shown in the code bellow it gives me

sys = NaN and an empty plot

Where did i go wrong ?

Thanks.

z=[-1.28811872803795e-09+3.75032438366853e-10i;
    -1.28811872803795e-09-3.75032438366853e-10i;
    -1.27120508227557e-09+1.46546199782833e-09i;
    -1.27120508227557e-09-1.46546199782833e-09i;
    -3.32881226000323e-09+9.39321860988066e-11i;
    -3.32881226000323e-09-9.39321860988066e-11i;
    -1.58271684302383e-09+3.99452158295292e-09i;
    -1.58271684302383e-09-3.99452158295292e-09i;
    -5.82131957722562e-06+0.00000000000000e+00i;
    5.86257744501881e-06+0.00000000000000e+00i;
    -3.97879334830376e+02+1.16773714820167e+04i;
    -3.97879334830376e+02-1.16773714820167e+04i;
    -1.26876548375538e+04+5.92462339644297e+04i;
    -1.26876548375538e+04-5.92462339644297e+04i;
    -1.22897755043826e+04+1.50129180496307e+05i;
    -1.22897755043826e+04-1.50129180496307e+05i;
    -2.37898350744872e+10+0.00000000000000e+00i;
    2.38692896865366e+10+0.00000000000000e+00i;
    -1.83626068795164e+11+1.57681364106391e+11i;
    -1.83626068795164e+11-1.57681364106391e+11i;
    1.83757221349466e+11+1.57733433284606e+11i;
    1.83757221349466e+11-1.57733433284606e+11i;
    -3.52043680810489e+11+0.00000000000000e+00i;
    3.52133420753001e+11+0.00000000000000e+00i;
    -3.43282629853052e+11+3.92816887251620e+11i;
    -3.43282629853052e+11-3.92816887251620e+11i;
    3.43331696868923e+11+3.92794659000565e+11i;
    3.43331696868923e+11-3.92794659000565e+11i;
    -6.38933586270784e+11+0.00000000000000e+00i;
    6.39013681124312e+11+0.00000000000000e+00i;
    -7.41366644869900e+11+0.00000000000000e+00i;
    7.41459685162969e+11+0.00000000000000e+00i;
    -7.16813058132076e+11+3.17835645085742e+11i;
    -7.16813058132076e+11-3.17835645085742e+11i;
    7.16937051677754e+11+3.17779565482882e+11i;
    7.16937051677754e+11-3.17779565482882e+11]
p=[-1.17526574606346e-08+0.00000000000000e+00i;
    -1.45539022282902e-08+0.00000000000000e+00i;
    -2.05380336431976e-08+0.00000000000000e+00i;
    -2.55828321866515e-08+0.00000000000000e+00i;
    -4.56660033199091e-08+0.00000000000000e+00i;
    -5.70884825512686e-08+0.00000000000000e+00i;
    -1.81058930649108e-07+0.00000000000000e+00i;
    -2.26809326278153e-07+0.00000000000000e+00i;
    -2.07048762127127e+01+5.79122928914659e+03i;
    -2.07048762127127e+01-5.79122928914659e+03i;
    -3.83164553845592e+02+1.16216446323155e+04i;
    -3.83164553845592e+02-1.16216446323155e+04i;
    -1.26711513946503e+04+6.55349709090204e+04i;
    -1.26711513946503e+04-6.55349709090204e+04i;
    -1.37893284168987e+04+1.38236035864718e+05i;
    -1.37893284168987e+04-1.38236035864718e+05i;
    -1.21701532452899e+06+0.00000000000000e+00i;
    -3.27874730871924e+07+0.00000000000000e+00i;
    -2.56974745105871e+10+0.00000000000000e+00i;
    2.57902230577189e+10+0.00000000000000e+00i;
    -2.00885121575103e+11+0.00000000000000e+00i;
    2.00994270339200e+11+0.00000000000000e+00i;
    -2.09729105616755e+11+0.00000000000000e+00i;
    2.09829607497857e+11+0.00000000000000e+00i;
    -3.67183927043333e+11+0.00000000000000e+00i;
    3.67280123011875e+11+0.00000000000000e+00i;
    -3.93421324148177e+11+0.00000000000000e+00i;
    3.93513018627735e+11+0.00000000000000e+00i;
    -5.85494774575287e+11+4.93981433401239e+09i;
    -5.85494774575287e+11-4.93981433401239e+09i;
    5.85599337665681e+11+4.93428043170709e+09i;
    5.85599337665681e+11-4.93428043170709e+09i;
    -6.86534178758184e+11+0.00000000000000e+00i;
    6.86625532723185e+11+0.00000000000000e+00i;
    -7.28937758682295e+11+0.00000000000000e+00i;
    7.29035537891136e+11+0.00000000000000e+00i;
    -8.27479933780269e+11+0.00000000000000e+00i; 
    8.27565870925879e+11+0.00000000000000e+00i;
    -9.10585117712558e+11+1.10238827198810e+11i;
    -9.10585117712558e+11-1.10238827198810e+11i;
    9.10657754476142e+11+1.10250967050881e+11i;
    9.10657754476142e+11-1.10250967050881e+11i;
    -9.47150572658139e+11+0.00000000000000e+00i;
    9.47241034341615e+11+0.00000000000000e+00i;
    -9.80609936035125e+11+0.00000000000000e+00i;
    9.80695673294753e+11+0.00000000000000e+00i]
k=1;
[num,den]=zp2tf(z,p,k)
sys=tf(num,den)
bode(sys)