Essays about: "Attitydkontroll"

Showing result 1 - 5 of 7 essays containing the word Attitydkontroll.

1. 1. Real Time Navigation Algorithms for LEO Small Satellites using COTS GNSS

   University essay from KTH/Lantmäteri – fastighetsvetenskap och geodesi

   Author : Nathan Groisne; [2023]
   Keywords : PNT; Small Satellite; COTS; GNSS; Navigation; ACS; PNT; små satelliter; COTS; GNSS; navigering; ACS;

   Abstract : Many satellites in LEO use a GNSS-based navigation system, taking advantage of the GNSS constellations in MEO to enhance navigation capabilities. The thesis work focused on developing the software enabling GNSS-based navigation for Hemeria's future small satellites operating in LEO. READ MORE

3. 2. Attitude Dynamics and Control for the Task Scheduling of Agile Earth Observation Satellites

   University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

   Author : Renato Franze; [2023]
   Keywords : Attitude Dynamics; Attitude Control; Earth Observation; Scheduling; Attityddynamik; Attitydkontroll; Jordobservation; Uppgiftsschemaläggning;

   Abstract : This thesis deals with the scheduling problem for a constellation of Earth observation satellites, focusing on modelling the attitude dynamics to assess the tasking capabilities. A target selection algorithm is developed considering the time dependent manoeuvres between targets and the time-dependent value of the observed targets. READ MORE

4. 3. Resonance Mitigation in the Attitude Control of a Flexible Large Solar Sail

   University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

   Author : Jonas Linnros; [2023]
   Keywords : Resonance; Control theory; Mechanics; Solar sail; PID; Space; Resonans; Reglerteknik; Mekanik; Solsegel; PID; Rymd;

   Abstract : This project is about the design process of a resonancemitigating algorithm for a large solar sail. The solar sail isa structure made up by four long booms in a cross patternwith suspended sails between the edges of the booms. Thespacecraft in this report is controlled using smaller rotatingsails at each tip of the booms. READ MORE

5. 4. Improving the safe mode robustness of an Earth observation satellite

   University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

   Author : Guillaume Trimoreau; [2022]
   Keywords : avoidance; dazzling; magnetic control; Monte Carlo; safe mode; simulation; tuning; solundvikelsemanöver; solbländning; magnetisk kontroll; Monte Carlo-metoden; säkra läget; simulation; inställning;

   Abstract : Airbus Defence and Space is developing an Earth observation platform. The payload of that platform is an optical instrument, which has to be protected from Sun dazzling in order to preserve its integrity. READ MORE

6. 5. Hardware-in-the-loop simulation and testing of the ADCS of the Beyond Atlas CubeSat

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Kritee Mahanti; [2021]
   Keywords : space; HIL; CubeSat; ADCS; satellites; rymd; HIL; CubeSat; ADCS; satelliter;

   Abstract : Beyond Atlas, a company based in Danderyd, Sweden is working on a Low Earth Orbit (LEO) 3U-CubeSat (Cube Satellite) exploration mission. As part of their maiden mission, they aim to validate the navigation, propulsion, and communication techniques of a CubeSat while it performs orbital maneuvers to collect photographs of space debris. READ MORE