Trabalho de Conclusão de Curso de Graduação
Estação terrena receptora para nanosatélites de baixa órbita - implementação através de rádio definido por software
Fecha
2023-07-21Registro en:
ZANON, J. E. Estação terrena receptora para nanosatélites de baixa órbita - implementação através de rádio definido por software. 2023. 137 p. Trabalho de Conclusão de Curso (Graduação em Engenharia Aeroespacial) - Universidade Federal de Santa Maria, Santa Maria, RS, 2023.
Autor
Zanon, José Eduardo
Institución
Resumen
With the popularization of software-defined radio, more and more applications are being
developed in a simplified way through software instead of hardware. Given the context,
there are numerous applications related to the TTeC segment of nanosatellites. In this
scenario, the present research aims to propose the project of a receiving ground station
implemented through software defined radio. To fulfill this objective, a methodology was defined,
as well as numerous tasks ranging from the link budget to the test of demodulators,
using software res such as MATLAB, 4NEC2, MATHCAD and GNU Radio. As a result, a
link budget was defined for the link between ground station and nanosatellite, a yagi-uda
antenna was designed, built and preliminarily tested in the laboratory as well as the test and
implementation of demodulators and decoders in the GNURadio software. Two demodulators
were proposed to work with modulations schemes used in the dissertation as well as
the implementation of the decoding segment. Also, a methodology was developed to work
with beacons in GNURadio, resulting in telemetry data sent by an cubesat. Finally, there
was contact with a cubesat present in low orbit, integrating the SDR, antenna and computer
segments