He has been the key scientist behind concept, design and installation of the Brazilian Decimetric Array (BDA).

[1] Under his leadership, an outstanding group in radio astrophysics has been built at National Institute of Space Research (INPE) in Brazil.

[citation needed] His main contributions involved observational and theoretical precursor studies of fine structures in solar noise storms at decametric frequencies and high-energy solar flares, in collaboration with leading scientists such as R.V.

[3][4][5][6] In 1982 he participated in the innovative investigation on the interplanetary effects of solar flares occurred in 1979 when after, in 1984, he published the results [7] in partnership with S.R.

He was the main researcher for the development of the following instruments in solar radio astronomy: ROI Millimeter Radiometer (18–23 GHz) - Itapetinga Radio Observatory (Atibaia, SP),[8] Decimetric Solar Spectrometer (1.2-1.7 GHz), Brazilian Solar Spectroscope (BSS) (1.0-2.5 GHz)[9] and Brazilian Decimetric Array (BDA), for which he has served as General Coordinator since 2001.