Banca de DEFESA: THIAGO FONSECA MESSIAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : THIAGO FONSECA MESSIAS
DATE: 25/02/2022
TIME: 09:00
LOCAL: http://meet.google.com/dag-eegh-gby
TITLE:

Test of a UHF receiver to collect satellite sensor data

KEY WORDS:

INPE, SBCDA, CubeSat, EDC, Test Plan.

PAGES: 47
BIG AREA: Engenharias
AREA: Engenharia Aeroespacial
SUBÁREA: Sistemas Aeroespaciais
SPECIALTY: Satélites e Outros Dispositivos Aeroespaciais
SUMMARY:

This master’s thesis presents a test plan, the automation system for carrying out the
experiments and the results obtained from the Environmental Data Collector (EDC), UHF
receiver for collecting data from satellite sensors. The parameters tested were: bandwidth,
linearity, spurious, noise figure and performance of the decoding the received signals.
The EDC will act in the space segment of the Brazilian Environmental Data Collection
System (SBCDA), a forwarding system for satellite message. For over twenty years, the
SBCDA has provided data for various surveys. sas, however, the SBDCA needs an update
to its space segment. The Institute National Space Research Institute is developing a
constellation of nanosatellites from the CubeSat standard to replace the current SBCDA
satellites. The EDC will be the payload of the new SBCDA nanosatellites. To validate
the EDC, a test plan was prepared which aims to assess whether the prototype built is in
accordance with the desired specifications. To carry out the tests, a bench equipped with a
computer was built, equipped with testing software, a signal generator, a voltage source
and a Arduino. A spectral analysis, from the digitized signal, was used for the tests. of the
RF-Front-End and the Frame Error Rate calculation was used to validate the capacity of
the EDC to decode incoming messages. The EDC prototype was approved with based on
the results obtained, however, some corrections were suggested.

BANKING MEMBERS:
Presidente - 010.376.044-07 - JOSÉ MARCELO LIMA DUARTE - INPE
Interno - 1805797 - FRANCISCO JOSE TARGINO VIDAL
Externo à Instituição - FRANCISCO DE ASSIS BRITO FILHO - UFERSA