Szukana fraza: [Abstract = "In this paper we investigate the local stabilizability of single\-input nonlinear affine systems by means of an estimated state feedback law given by a bilinear observer. The associated bilinear approximating system is assumed to be observable for any input and stabilizable by a homogeneous feedback law of degree zero. Furthermore, we discuss the case of planar systems which admit bad inputs \(i.e. the ones that make bilinear systems unobservable\). A separation principle for such systems is given."]

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