TY  - JOUR
Y1  - 2014///
JF  - International Journal of Control 
IS  - 3
PB  - Taylor & Francis
A1  - Rubagotti, Matteo
A1  - Poggi, Tomaso
A1  - Oliveri, Albert
A1  - Pascucci, Carlo A.
A1  - Bemporad, Alberto
A1  - Storace, Marco
SP  - 622
VL  - 87
KW  - Piecewise-affine functions
KW  -  Nonlinear observers
KW  -  Digital circuits
AV  - none
TI  - Low-complexity piecewise-affine virtual sensors: theory and design
UR  - http://www.tandfonline.com/doi/abs/10.1080/00207179.2013.852250
SN  - 0020-7179
N2  - This paper is focused on the theoretical development and the hardware implementation of low-complexity piecewise-affine direct virtual sensors for the estimation of unmeasured variables of interest of nonlinear systems. The direct virtual sensor is designed directly from measured inputs and outputs of the system and does not require a dynamical model. The proposed approach allows one to design estimators which mitigate the effect of the so-called ?curse of dimensionality? of simplicial piecewise-affine functions, and can be therefore applied to relatively high-order systems, enjoying convergence and optimality properties. An automatic toolchain is also presented to generate the VHDL code describing the digital circuit implementing the virtual sensor, starting from the set of measured input and output data. The proposed methodology is applied to generate an FPGA implementation of the virtual sensor for the estimation of vehicle lateral velocity, using a hardware-in-the-loop setting.
N1  - Published online: 04 Dec 2013
ID  - eprints1835
EP  - 632
ER  -