Universal Projective Synchronization of Two Different Hyperchaotic Systems with Unknown Parameters

<table>The time evolution of the estimated values <svg height="15.7125" id="M174" style="vertical-align:-3.276pt" version="1.1" viewbox="0 0 15.0625 15.7125" width="15.0625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,-0,0,-.012,8.663,15.65)"><path d="M384 0h-275v27q67 5 81.5 18.5t14.5 68.5v385q0 38 -7.5 47.5t-40.5 10.5l-48 2v24q85 15 178 52v-521q0 -55 14.5 -68.5t82.5 -18.5v-27z" id="x31"></path></g>
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<g transform="matrix(.017,-0,0,-.017,8,11.35)"><path d="M-70 557l-16 -25q-49 20 -126 62q-67 -39 -125 -62l-16 25q86 60 132 107h22q49 -51 129 -107z" id="x302"></path></g><g transform="matrix(.017,-0,0,-.017,.063,16.025)"><path d="M452 333q0 -82 -46 -164t-116 -128q-81 -53 -158 -53q-26 0 -51 13t-37 32q-26 41 -6 134l91 431q7 40 2.5 47t-34.5 7h-33l2 25q36 4 72.5 13t58.5 15.5t28 6.5q10 0 4 -29l-91 -391h2q65 77 130 116.5t105 39.5q36 0 56.5 -32t20.5 -83zM365 316q0 76 -35 76
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<g transform="matrix(.012,-0,0,-.012,8.038,20.1)"><path d="M384 0h-275v27q67 5 81.5 18.5t14.5 68.5v385q0 38 -7.5 47.5t-40.5 10.5l-48 2v24q85 15 178 52v-521q0 -55 14.5 -68.5t82.5 -18.5v-27z" id="x31"></path></g>
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Journal of Applied Mathematics

fig16

Figure 16

Figure 16: Universal Projective Synchronization of Two Different Hyperchaotic Systems with Unknown Parameters 