Essays about: "Low Earth Orbit LEO"

Showing result 1 - 5 of 21 essays containing the words Low Earth Orbit LEO.

1. 1. LEO Satellite Connectivity for flying vehicles

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

   Author : Jinxuan Chen; [2023]
   Keywords : LEO satellite network; satellite connectivity strategy; Nash-SAC; flying vehicles; LEO:s satellitnät; Strategi för satellitanslutning; Nash-SAC; flygande fordon;

   Abstract : Compared with the terrestrial network (TN), which can only support limited covered areas, satellite communication (SC) can provide global coverage and high survivability in case of an emergency like an earthquake. Especially low-earth orbit (LEO) satellites, as a promising technology, which is integral to achieving the goal of global seamless coverage and reliable communication, catering to 6G’s communication requirements. READ MORE

3. 2. Initial Orbit Determination of Resident Space Objects From A Passive Optical Imaging System: : Application to Space Situational Awareness

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Jessica McKenna; [2023]
   Keywords : Space Situational Awareness; Space Science; Angles-Only Initial Orbit Determination;

   Abstract : The probability of satellite collisions and disintegrations cluttering the near-Earth orbital environmentis ever-growing. This is especially true for the congested Low Earth Orbit (LEO) regime; once a critical density of objects is reached, a collisional cascading is projected to generate runaway growth of theorbital population. READ MORE

4. 3. Attitude control using ion thrusters for solar sailing from Low Earth Orbit to sub-L1

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Celeste Holm; Ida Ygland; [2022]
   Keywords : the sunshade project; geoengineering; solar sailing; attitude control; ion thrusters;

   Abstract : The purpose of the study is to evaluate the possibility of using gridded ion thrusters as a means of attitude control for a solar sail as a part of the sunshade project, which aims to place 10^8 solar sail sunshade spacecraft, each with an area of about 10 000 m^2, at the Sun-Earth Lagrangian point L1 in order to reduce Earth's global temperature. Two types of solar sail sunshade spacecraft were studied. READ MORE

5. 4. Space Rider System: GNC and System Model Improvements

   University essay from KTH/Rymdteknik

   Author : Simon Vial; [2022]
   Keywords : Space Rider System; Disturbance Modelling; Maneuver Optimization; Space Rider System; Modellering av Störningar; Manöveroptimering;

   Abstract : As part of a continuous trend of the space sector for obtaining higher performance space science and Earth observations, there is an increasing demand for higher requirements in pointing accuracy and disturbance prediction. The Space Rider System (SRS) is a Low Earth Orbit (LEO) reusable vehicle that aims at answering to that demand. 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