Essays about: "ionosphere"

Showing result 11 - 15 of 47 essays containing the word ionosphere.

  1. 11. Comprehensive Venus boundaries model : Empirical dependency of boundaries on the upstream conditions

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

    Author : Umberto Rollero; [2023]
    Keywords : Bow shock; Ion Composition Boundary; Venus; Upstream conditions; Solar wind.; Bow shock; Bogshock; Ion Composition Boundary; Venus; Uppströmsförhållanden; Solvind.;

    Abstract : Since Venus is an unmagnetized planet, it doesn’t interact with the solar wind in the same way as planets with an intrinsic magnetic field do. Due to its conductive ionosphere, however, it still possesses an induced magnetosphere. READ MORE

  3. 12. Sporadic-E layers in the polar cap ionosphere : A review on Es occurrence, dynamics and formation theory

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

    Author : Anton Thorell; [2023]
    Keywords : Sporadic-E layers; plasma physics; space physics; arctic geophysics; radar technology; UNIS; Svalbard; EISCAT.; Sporadiska E-skikt; plasmafysik; rymdfysik; arktisk geofysik; radarteknik; UNIS; Svalbard; EISCAT.;

    Abstract : Sporadic-E layers (Es) are layers of metallic ions that appear in the lower E-region of the ionosphere and can last from under one hour to several hours. Es are found at all latitudes, but polar cap Es, and specifically over Svalbard at a latitude of around 78◦ , are the focus of this study. READ MORE

  4. 13. Utilising Raw GNSS Data from Android Units to Improve Positioning

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Karin Seifert; [2022]
    Keywords : ;

    Abstract : In this study it was examined if positioning can be improved by utilising raw Global Navigation Satellite System (GNSS) data from Android devices instead of using Android's existing Location API. If this is the case, the coworkers at BM System may modify their apps, one is called Loco, to develop one that calculates positions directly by utilising raw GNSS data instead of using Android's Location API which is done presently. READ MORE

  5. 14. Spatial Variability in the Ionosphere and GNSS Signal Delays in the L-band: A Direct Comparison of In-Situ Satellite- and Swepos-Data

    University essay from Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Author : Oscar Suneson; [2021]
    Keywords : fysik; jonosfären; GNSS; GPS; astrofysik; navigationssystem; mätteknik;

    Abstract : It has been shown that ionospheric irregularities can disturb our GNSS (Global Navigation Satellite System) communication. This disturbance is caused by scintillation of the radio signals when they pass through the ionosphere, leading to lock-on difficulties or in worst case, a loss of position for the GNSS-receiver. READ MORE

  6. 15. Ionospheric Effect on GPS During Solar Maximum

    University essay from KTH/Fastigheter och byggande

    Author : Netsai Wiboonwipa; [2021]
    Keywords : GPS; Ionosphere; MS-TIDs; Polar cap patches; GPS; jonosfär; MS-TID; polarkåpor;

    Abstract : Ionospheric effects are one of the factors that can have negative impact on Global Navigation Satellite Systems (GNSS). Those effects can be called medium-scale traveling ionospheric disturbances (MS-TIDs) at middle latitude regions and polar cap patches at high latitude regions. READ MORE