Luiz Vicente Gomes Tarelho

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This paper describes the progress on commissioning a thermal Cesium beam frequency standard developed at IFSC-USP and transferred to the Brazilian NMI in order to be continuously operated as a primary frequency standard. The system is composed of a short Ramsey cavity for electromagnetic excitation and an optical pumping for atom detection and energy-state(More)
This paper describes the determination of ionospheric and tropospheric effects on satellite communications between Inmetro ground station and GPS constellation satellites This is made with the use of a geodesic receiver to collect data and with post processing softwares for PPP implementations. The data satellite communication link is used for time and(More)
This paper describes the determination of ionospheric and tropospheric effects on satellite communications between Inmetro ground station and GPS constellation satellites This is made with the use of a geodesic receiver to collect data and with post processing softwares for PPP implementations. The satellite communication link is used for time and frequency(More)
This paper describes the progress on commissioning a thermal Cesium beam frequency standard developed at IFSC-USP and transferred to the Brazilian NMI in order to be continuously operated as a primary frequency standard. The system is composed of a short Ramsey cavity for electromagnetic excitation and an optical pumping for atom detection and energy-state(More)
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