A new variational ARMA power spectral estimation procedure is proposed. The resulting is a generalization of the ARMA estimation method proposed by Lagunas et al. [1] which used correlation and cepstral constraints. The ...

In the optimization formulation, once the known autocorrelations are fixed as constraints, the objective functional completely characterizes the corresponding method of spectral estimation. After observing that this ...

Binder-free ceria pastes have been formulated and used to prepare ceria structures with a woodpile arrangement of microchannels through 3D printing. After loading them with nickel, these catalytic structures have been ...

[ANGLÈS] Study of the harmonic spectrum on various pulse width modulation strategies for multilevel converters, and how it affects the distortion on the converters.

This paper analyzes the reflected fields produced by parabolic and hyperbolic surfaces when an electromagnetic field falls into them. Multireflector antennas, which are integrated by such reflecting surfaces, are studied ...

[ANGLÈS] The project goal is to design a platform based on an existing HW/SW embeded Linux system containing a FPGA, within an academic environment. To accomplish that objective, a specific application for signal Adquisition ...

We present an algorithm for the unsupervised learning of latent variable models based on the method of moments. We give efficient estimates of the moments for two models that are well known, e.g., in text mining, the ...

Las energías renovables son el futuro, y el estudio de estas todavía está en investigación y desarrollo. Los reactores de fusión pueden dar paso a un nuevo mundo dentro de la energía nuclear, muy diferente del que conocemos ...

This problem discusses here is the hierarchical representation and processing of the hyperspectral imaging. In this framework, Binary Partition Trees (BPTs) are proposed as new hierarchical region-based representation. ...