Xuening Sun

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Active safety systems are based upon the accurate and fast estimation of the value of important dynamical variables such as forces, load transfer, actual tire-road friction (kinetic friction) mu<i>k</i>, and maximum tire-road friction available (potential friction) mu<i>p</i>. Measuring these parameters directly from tires offers the potential for improving(More)
Efficient system-level design is increasingly relying on hierarchical design-space exploration, as well as compositional methods, to shorten time-to-market, leverage design re-use, and achieve optimal performances. However, in analog electronic systems, circuit behaviors are so tightly dependent on their interface conditions that accurate system performance(More)
—This paper presents an ultra-wideband (UWB) low noise amplifier (LNA) consuming 2.2-mW core dc power for 6-8.5GHz wireless applications. A common-gate input stage is cascaded with a common-source second stage to perform input impedance matching and wideband stagger-tuning amplification, while the current-reuse topology minimizes the dc power dissipation.(More)
The increasing complexity of today's electronic systems and the higher nonrecurring engineering costs of integrated solutions call for an efficient system-level design methodology relying on hierarchical design-space exploration and compositional methods to manage complexity, shorten time-to-market, and leverage design re-use, while still achieving optimal(More)
Acknowledgements I am especially grateful to my advisor and coauthor Boris Bukh, without whom I would not have been able to finish my PhD. I would like to thank Po-Shen Loh, who first introduced extremal combinatorics to me. I would also like to thank other faculty members of math, physics and computer science departments, Schimmerling and Dejan Slepčev,(More)
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