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I<br />
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SenBitivit! of aodel pat@rete" ?E<br />
FIGURE 23<br />
RepreseFtrtlon of time<br />
of entry nodel<br />
As r{1th t}re ot}t€r nodelE, t.lr6 flrat inv€atlqation coocahed the<br />
eerBltlvlty of th€ p!;aneter(s) - ln this listance, Tt. slnce the tloe<br />
of entry rnodel 1s a one PAratleter Bodel, the values of the obJective<br />
functlons can be plotted allrectly agalnat tE. Ftgure 24 shoss the<br />
plot of tJle obJectlve functlons ISE and PEAK for EIx coEblneit errents<br />
on catchDetrt 2061.. It is apparent that altfiough the PEIX functlon ls<br />
[o!e 6.ns1tlv6 thln the ISE functlon, both Bhor{ a Dlnlduro value at th€<br />
aase tE valua. th16 ia an encouraglng slgn th.t the best valu€ of IE<br />
ha5 bacn obtrlneal, trEtlcularly aLnce the sdt'e aesult {as obtaltreal<br />
for the t:rro otJrer catcho€nta testad (3Il rnal 4177).<br />
16<br />
15<br />
>r3<br />
ro<br />
c.tchmGnr 2o€1<br />
ro tt t2<br />
TE(.nin)<br />
Figule 24 EugEeBt€ that the rbestr value of fE ls of the orde! of 1l-12<br />
Dlnut€a, a Duch high6! value than the 2-4 olDutea usually aalopt€d ln<br />
tleEl,gn practlc6. Trble L5 thors t}le tE values obtaineal fo! optlnizatlon<br />
on i.ndlvldual ev€neB for. all of the test catchEents. Again the ,best'<br />
valueg of lE ale quLte latge, Doat belng ln t}€ ranqe 7-l.O El.aut€s.<br />
Ot}Iei polnta to not€ fId the tabl6 ale that t-h€ co€fflclent of<br />
varlatlon of lE irith ev€nta 1s leaaonably 1on, {nd thrt catchlent 4175<br />
again'ploalucea an rnoualous lesult.<br />
t3<br />
/<br />
/<br />
t5<br />
t6<br />
FIGI]RT 24<br />
Sensitivity of<br />
time of entry<br />
paraneter