Federico Traverso

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Traditional hearing aids are limited by the absence of spatial selectivity. Superdirective microphone array can recover such limit, performing a spatial filtering to achieve an augmented SNR. We present Glassense, a platform hosting a double microphone array connected to a processing unit and mounted on the frame of common glasses. The platform has the(More)
For linear arrays with fixed steering and an inter-element spacing smaller than one half of the wavelength, end-fire steering of a data-independent beamformer offers better directivity than broadside steering. The introduction of a lower bound on the white noise gain ensures the necessary robustness against random array errors and sensor mismatches.(More)
Linear arrays steered to end-fire provide superdirective robust performance if a constraint is imposed on the white-noise gain. Filter-and-sum beamformers achieve the maximum constrained directivity by tuning their complex weights over the frequency. Delay-and-sum beamformers have simpler structures, but their weights are fixed and optimized at a given(More)
  • Diego Bastourre, Jorge Carrera, Javier Ibarlucia, José Fanelli, Gustavo Cañonero, Federico Traverso +3 others
  • 2009
This paper offers a framework aimed at improving our knowledge of those elements driving commodity prices. We employ a smooth transition vector autoregressive model suitable for testing the theoretical hypothesis derived from a heterogeneous agent model. The empirical methodology allows distinguishing among variables that influence long run prices(More)
Working on a unbalanced sample of OECD countries spanning the period 1970-2003, this paper contributes to the empirical literature on the Feldstein-Horioka puzzle by making three main innovations: First, it goes beyond the traditional national-level investment-saving equations to estimate, for the first time, regressions at the institutional sector level(More)
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