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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium



Classification of voice aging based on the glottal signal

Classification of voice aging has many applications in health care and geriatrics. This work focuses on finding the most relevant parameters to classify voi...

SBrT 2010


Close Approximations for Daublets and their Spectra

This paper offers a new regard on compactly supported wavelets derived from FIR filters. Although being continuous wavelets, analytical formulation are lac...

SBrT 2010


COLOR IMAGE QUALITY EVALUATION USING GRAYSCALE METRICS IN CIELAB COLOR SPACE

In many image applications the measurement of visual quality is of special importance. Most of the Full-Reference metrics proposed address the evaluation o...

SBrT 2010


Comparative Analysis of PMD and PDL on DOP in Optical Communication Systems for NRZ, RZ and CSRZ Signals

This paper presents a numerical analysis of the dispersive effects of light polarization in optical fibers. This study analyzed the behavior of the degree ...

SBrT 2010


Comparison of the Performance of Rain Attenuation Prediction Methods for Terrestrial Links

This paper presents the results of a comparative tests between rain attenuation prediction methods for terrestrial links. To perform the tests, experimenta...

SBrT 2010