Sökning: "satellit"

Visar resultat 21 - 25 av 103 uppsatser innehållade ordet satellit.

1. 21. Forward Modelling of Ground Based SST Telescope Images

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

   Författare :Anna Hidalgo Larsson; [2021]
   Nyckelord :SST; SSA; Satellite; Telescope; CMOS; TLE; Image Simulator; Space Imagery; Space Debris; Tracklet; Rymdlägesbild; satellit; teleskop; CMOS; TLE; bildsimulator; rymdbilder; rymdskrot; satellitpass.;

   Sammanfattning : Space debris is becoming an increased threat to the future use of space orbits. In order to counteract this threat, the field of Space Situational Awareness (SSA), and the sub-field Space Surveillance and Tracking (SST), have been developed to gather knowledge about the space debris and satellites surrounding Earth. LÄS MER

3. 22. Development of GNSS Type Processing for the Characterization of the Mobile Propagation Channel

   Master-uppsats, KTH/Fastigheter och byggande

   Författare :Adrien Bardou; [2021]
   Nyckelord :LMS Channel; Multi-paths; GNSS; SCHUN; Simulation; LMS-kanal; flerv¨agar; GNSS; SCHUN; Simulering;

   Sammanfattning : Mobile communication systems are undergoing significant development on increasingly wide frequency bands (5G in particular). To support this development, a detailed characterization of the propagation of electromagnetic waves in L, S and C band between a station (satellite, airborne or ground) and a mobile platform is necessary to analyze and model the phenomena that have a decisive impact on the performance, availability and operability of systems. LÄS MER

4. 23. Finite Element Analysis of Stresses in the MIST CubeSat due to Dynamic Loads During Launch

   Master-uppsats, KTH/Lättkonstruktioner

   Författare :Carl Järmyr Eriksson; [2021]
   Nyckelord :Satellite; CubeSat; Nanosatellite; Dynamic Loads; Launch Loads; Finite Element Analysis; FEA; Quasi-static Acceleration; Modal Analysis; Random Vibration; Shock Loads; satellit; CubeSat; nanosatellit; dynamiska laster; uppskjutningslaster; finita elementmetoden; FEM; kvasistatisk acceleration; modalanalys; stokastiska vibrationer; chocklaster;

   Sammanfattning : A finite element model of the CubeSat MIST was created, in order to assess the stresses that occur in the satellite in response to loads during its launch. Due to size limits of thesoftware used, simplifications had to be made to the geometry of the model. LÄS MER

5. 24. UAV geolocalization in Swedish fields and forests using Deep Learning

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

   Författare :Andreas Rohlén; [2021]
   Nyckelord :Unmanned Aerial Vehicle; Absolute Localization; Deep Learning; Convolutional Neural Network; Cross-View; Neural Network Interpretation; Obemannad Luftburet Fordon; Absolut Lokalisering; Djupinlärning; Convolutional Neural Network; Kors-Perspektiv; Neural nätverkstolkning;

   Sammanfattning : The ability for unmanned autonomous aerial vehicles (UAV) to localize themselves in an environment is fundamental for them to be able to function, even if they do not have access to a global positioning system. Recently, with the success of deep learning in vision based tasks, there have been some proposed methods for absolute geolocalization using vison based deep learning with satellite and UAV images. LÄS MER

7. 25. Key components of building customer trust in the space industry : An investigation of the future of satellite applications

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Industriell teknik; Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

   Författare :Josefine Nittler; Mattias Ahlsén; [2021]
   Nyckelord :School of Entrepreneurship; space; space industry; satellite; application; artificial intelligence; AI; trust; B2B; industrial marketing; explorative case study; SpaceCloud; Unibap; Entreprenörskolan; rymd; rymdindustri; satellit; applikation; artificiell intelligens; AI; förtroende; B2B; industriell marknadsföring; explorativ fallstudie; SpaceCloud; Unibap;

   Sammanfattning : This study is an empirical case study of the Swedish space- and automation company Unibap AB about how to build trust in the space industry. The space industry is distinctive in the way that space missions are at high stakes because of the high costs and the fact that the technology can not be modified after launch. LÄS MER