1,721,323 research outputs found
Optimal inner bounds of feasible parameter set in linear estimation with bounded noise
No full textThis note considers some problems arising in parameter estimation theory with unknown but bounded measurement errors. In this theory, a key role is played by the feasible parameter set, i.e., the set of all parameter values consistent with the system model and the error bounds. If a linear relationship between parameters and measurements is assumed, this set is a polytope. An exact representation of this polytope may be too complex for practical use, and approximate descriptions in terms of simple shaped sets contained in the feasible parameter set (inner bounds) have shown to be useful in several applications. In this note, we use as bounding sets balls in l(m) norms (boxes), l2 norms (ellipsoids), and l1 norms (diamonds). We give new results on the computation of maximal balls when their shape is either known or partially free
High frequency supply compatible hysteresis comparator with low dynamics differential input
No full textA comparator circuit includes a differential input stage, a second differential stage having a differential output, and an output stage transforming an output signal from the differential output of the second differential stage into an output signal having a logic level. The comparator further includes a common mode measuring stage. The common mode measuring stage includes a differential pair of input transistors and a differential pair of complementary transistors biased by respective current generators, and a current mirror summing the differential output currents of the two complementary transistors pairs into a single output current signal. A switching stage is controlled by the differential output nodes of the second differential stage. A common source node of the switch stage is coupled to the output of the common mode measuring stage and to the differential output nodes of the differential input stage
Discussion on: Robust design of predictive controllers in presence of unmodeled dynamics. Final comments by the authors
No full textThe Transformation of the Ancient Towns in Central Tunisia during the Islamic Period: the Exaple of Uchi Maius
No full textLa trasformazione degli spazi pubblici di una città proconsolare dal V al VII secolo. Nuovi dati sull'abitato di Uchi Maius (Tunisia)
No full textin 'Societa multiculturali nei secoli V-IX, Scontri, convivenza, integrazione nel Mediterraneo occidentale' (Atti delle VII Giornate di studio sull'eta romano-barbarica
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