Essays about: "Line of sight"

Showing result 21 - 25 of 139 essays containing the words Line of sight.

  1. 21. An evaluation of LoRa transmission parameter selection for indoor positioning

    University essay from Jönköping University/JTH, Avdelningen för datateknik och informatik

    Author : Adina Valjakka; Anton Ahlinder; [2022]
    Keywords : Accuracy; Indoor positioning; LoRa; NLOS; Precision; RSSI; Transmission parameters; Trilateration;

    Abstract : The purpose of this thesis is to investigate how the LoRa modulation configuration affects precision and accuracy when using LoRa for indoor positioning in non-line-of-sight conditions. The aim is to research if an optimum combination of spreading factor, bandwidth, and code rate factor can be found to result in the best possible positioning accuracy and precision, under certain predefined conditions. READ MORE

  3. 22. Estimating Properties of a Young Pulsar through X-ray Observations - An Investigation of Parameter Dependence

    University essay from KTH/Fysik

    Author : Lurin Ali; [2022]
    Keywords : Pulsar; Neutron star; Supernova;

    Abstract : Studying the properties of newborn neutron stars is a complicated matter since they cannot be directly observed. Neutron stars are born when some massive stars go supernova (SN), where the expelled material from the explosion goes on to shield the young neutron star from our view by absorbing its radiation. READ MORE

  4. 23. Seasonal permafrost subsidence monitoring in Tavvavuoma (Sweden) and Chersky (Russia) using Sentinel-1 data and the SBAS stacking technique

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Ida Rehn; [2022]
    Keywords : InSAR; Sentinel-1; SBAS; Permafrost; Subsidence; Permafrost thaw;

    Abstract : Permafrost deformation is expected to increase due to climatic perturbations such as amplified air and soil temperatures, resulting in permafrost thawing and subsequent subsidence. Palsas and peat plateaus are uplifted ice-rich peat mounds that experience permafrost subsidence. READ MORE

  5. 24. Extension of the Mission Timeline Simulator with Modern Optimization Capabilities

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Flavia Pérez Cámara; [2022]
    Keywords : Optimization; timeline; simulator; matlab; control;

    Abstract : The Advanced Telescope for High-Energy Astrophysics (ATHENA) has been selected as the second large (L-class) mission designed to address the Cosmic Vision science theme “The Hot and Energetic Universe”. The European Space Agency has produced a Mission Observation Plan which contains objectives and constraints of the mission. READ MORE

  6. 25. Raytracing in Channel Model Development

    University essay from Karlstads universitet

    Author : Andreas Rogne; [2022]
    Keywords : ;

    Abstract : The fifth generation of mobile internet is upon us, but still, there is work to do before the new technology is fully utilized. The new generation of cellular network promises frequencies ranging from the sub – 6 GHz to 39 GHz, the latter being in the mmWave spectrum. READ MORE