Sirvi Autor "Komarovskis, Roberts Oskars" järgi

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  • Pisipilt
    Kirje
    Development and Implementation of ESTCube-2 Star Tracker FPGA Design
    (Tartu Ülikool, 2024) Komarovskis, Roberts Oskars; Allaje, Kristo; Eenmäe, Tõnis; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Tehnoloogiainstituut
    Attitude determination and control play a critical role in a spacecraft, where one solution for attitude determination can be star tracking. Star tracker systems can provide high-accuracy attitude information based on star identification, and such a system is also a part of the ESTCube-2 nanosatellite developed by the Estonian Student Satellite Foundation. One of the primary components in the ESTCube-2 star tracker is a field-programmable gate array (FPGA) responsible for processing the captured images. This thesis aims to develop and implement FPGA system design and necessary algorithms for star tracking and assess the performance of the obtained design. Different FPGA design components were made to interface with external devices and perform different functions related to star tracking.
  • Pisipilt
    Kirje
    Development of an Engineering Model for ESTCube-2 Power Distribution Electronics
    (2021) Komarovskis, Roberts Oskars
    The power distribution is a crucial function of the satellite electrical power system (EPS) responsible for the voltage conversion, power-related measurements, and power distribution to various satellite systems. EPS of the satellite also includes energy harvesting and energy storage; due to these functions, the electrical power system is one of the most essential systems of a satellite. It must have a redundant, rigid design that can withstand some system or component failures, the temperature, radiation, and other conditions presented by the low Earth orbit environment. The different functions of EPS are performed in various locations in the ESTCube- 2 satellite - 3U CubeSat developed by the Estonian Student Satellite Foundation. It is critical to carry out thorough tests for each electrical power system element to ensure that the power requirements of each satellite system will be met. This bachelor’s thesis aims to develop an engineering model for the power distribution electronics that are located on a single board within the ESTCube-2 nanosatellite - the EPS mainboard.