TY - JOUR AV - none ID - eprints1205 TI - High-Speed piecewise affine virtual sensors UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5936726&isnumber=6046172 IS - 2 KW - high speed piecewise affine virtual sensors; measurement space; nonlinear systems; parametric identification; unknown dynamics; digital circuits; sensors; virtual instrumentation EP - 1237 VL - 59 PB - IEEE SP - 1228 A1 - Poggi, Tomaso A1 - Rubagotti, Matteo A1 - Bemporad, Alberto A1 - Storace, Marco N2 - This paper proposes piecewise affine (PWA) virtual sensors for the estimation of unmeasured variables of nonlinear systems with unknown dynamics. The estimation functions are designed directly from measured inputs and outputs and have two important features. First, they enjoy convergence and optimality properties, based on classical results on parametric identification. Second, the PWA structure is based on a simplicial partition of the measurement space and allows one to implement very effectively the virtual sensor on a digital circuit. Due to the low cost of the required hardware for the implementation of such a particular structure and to the very high sampling frequencies that can be achieved, the approach is applicable to a wide range of industrial problems. JF - IEEE Transactions on Industrial Electronics SN - 0278-0046 Y1 - 2012/02// ER -