Sökning: "låg omloppsbana"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden låg omloppsbana.

  1. 1. Space Rider System: GNC and System Model Improvements

    Master-uppsats, KTH/Rymdteknik

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

    Sammanfattning : 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. LÄS MER

  3. 2. Error Injection Study for a SpaceFibre In-Orbit Demonstrator

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Carlos Abad Garcia; [2020]
    Nyckelord :;

    Sammanfattning : The space electronics sector is shifting towards the New-Space paradigm, in which traditional space-quali_ed and expensive components and payloads are replaced by commercial o_-the-shelf (COTS) alternatives. This change in mentality is accompanied by the development of inexpensive cubesats, lowering the entry barrie in terms of cost, enabling an increase in scienti_c research in space. LÄS MER

  4. 3. Comparison of Control Approaches for Formation Flying of Two Identical Satellites in Low Earth Orbit

    Master-uppsats, KTH/Rymdteknik

    Författare :Hasan Basaran; [2020]
    Nyckelord :Aerospace; Chief; Control; Deputy; Feedback Linearization; Follower; Formation Flight; Fuel Consumption; Guidance; Leader; Model Predictive Control; Relative Orbit; Rendezvous; Sliding Mode.;

    Sammanfattning : Formation flying of satellites describes a mission in which a set of satellites arrange their position with respect to one another. In this paper, satellite formation flying guidance and control algorithms are investigated in terms of required velocity increment Delta-v, and tracking error for a Chief/Deputy satellite system. LÄS MER

  5. 4. Conceptual Design of an Air- launched Multi-stage Launch Vehicle

    Master-uppsats, KTH/Fysik

    Författare :John Sigvant; [2020]
    Nyckelord :Air-launched; multi-stage; launch vehicle; rocket; LEO; solid propellant; optimization; Luftuppskjutning; flerstegsraket; låg omloppsbana; fast bränsle; optimering;

    Sammanfattning : In the present thesis, the objective was to find the maximum amount of payload mass that can be put into a 500 km polar orbit by a 1400 kg air-launched multi-stage rocket launched from a fighter jet platform. To fulfill the objective an algorithm incorporating several modules was developed. LÄS MER

  7. 5. Conceptual Design of an Air- launched Multi-stage Launch Vehicle

    Master-uppsats, KTH/Fysik

    Författare :John Sigvant; [2020]
    Nyckelord :Air-launched; multi-stage; launch vehicle; rocket; LEO; solid propellant; optimization; Luftuppskjutning; flerstegsraket; låg omloppsbana; fast bränsle; optimering;

    Sammanfattning : In the present thesis, the objective was to find the maximum amount of payload mass that can be put into a 500 km polar orbit by a 1400 kg air-launched multi-stage rocket launched from a fighter jet platform. To fulfill the objective an algorithm incorporating several modules was developed. LÄS MER