Now showing items 1-10 of 120
Novel tuneable filter based on MZ and an amplified ring resonator for OFDM networks
A novel reconfigurable fibre based tuneable filter is proposed. The module relies on a cascaded connection of Mach-Zehnders and an amplified fibre ring resonator. MHz range adjustable FHWM bandwidths and high crosstalk are ...
Design of a CMOS second order band-pass continuous time filter using numerical optimization
(IEEE Int. Midwest Symp. Circuits and Systems, 2009-08)
Novel Two-Stage Comb Decimator
(Revista Computación y Sistemas; Vol. 16 No. 4, 2012-12-10)
Abstract: A simple method for the design of a multiplier-less comb-based decimation filter is presented. The filter compensates the comb passband droop, and has the desired attenuation in the first folding band. The proposed ...
Using GPUs for beamforming acceleration on SAFT imaging
SAFT techniques are based on the sequential activation, in emission and reception, of the array elements and the post-processing of all the received signals to compose the image. Thus, the image generation can be divided ...
A Broadband Vibration-Based Energy Harvester Using an Array of Piezoelectric Beams Connected by Springs
(Hindawi Publishing Corp., 2016)
Piezoelectric cantilevered beams have been widely used as vibration-based energy harvesters. Nevertheless, these devices have a narrow frequency band and if the excitation is slightly different there is a significant drop ...
Estudo comparativo de potenciais evocados visuais entre diferentes equipamentos Nihon Kohden
(Universidade Estadual Paulista (UNESP), 2017-05-03)
Potenciais evocados visuais (PEV) avaliam vias visuais para fins clínicos. Os objetivos deste estudo foram comparar morfologias e latências de ondas P100, obtidas com diferentes bandas passantes de filtros, em 2 equipamentos ...
Narrowband feedback for narrowband control of resonant and non-resonant vibration
This paper presents a simple feedback methodology that uses second order filters to control narrowband resonant and non-resonant vibration of a structural system. In particular, a single degree-of-freedom system is studied ...
Low power consumption silicon photonics tuning filters based on compound microring resonators
Scalable integrated optics platforms based on silicon-on-insulator allow to develop optics and electronics functions on the same chip. Developments in this area are fostered by its potential as an I/O technology that can ...