Sökning: "navigation lock"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden navigation lock.

  1. 1. Analysing space dependencies - Methods and factors for method development

    Master-uppsats, Lunds universitet/Riskhantering (CI); Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Författare :Theodor de Sousa; [2022]
    Nyckelord :Vital societal functions; critical infrastructure; interdependency; dependency analysis; space services; space infrastructure; GNSS; PNT; ICT; method development; Technology and Engineering;

    Sammanfattning : Vital societal functions and critical infrastructure rely to an increasing extent on services from space, such as navigation and positioning systems, timekeeping, and communications. However, understanding of space service dependencies is low among practitioners and society at large, with research on societal space dependency being limited as well. LÄS MER

  3. 2. Deep Monocular Visual Odometry for fixed-winged Aircraft : Exploring Deep-VO designed for ground use in a high altitude aerial environment

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

    Författare :Oliver Öhrstam Lindström; [2022]
    Nyckelord :Deep-VO; Aviation; Fixed-Wing; Aircraft; Deep Learning; Deep-VO; Hög Höjd; Flygplan; Deep Learning;

    Sammanfattning : In aviation, safety is a big concern. Knowing the position of an aircraft at all times is of high importance. Today most aircraft utilize Global Navigation Satellite Systems (GNSS) for localization and precision navigation because of the small position error which do not increase over time. LÄS MER

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

    Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Författare :Oscar Suneson; [2021]
    Nyckelord :fysik; jonosfären; GNSS; GPS; astrofysik; navigationssystem; mätteknik;

    Sammanfattning : 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. LÄS MER

  5. 4. Door, Passage, Courtyard: Shifting Perspective in Gamla Stan

    Master-uppsats, KTH/Arkitektur

    Författare :Anton Tonchev; [2020]
    Nyckelord :gamla stan; speculation; urbanism; removal; network; public access; elements; interconnected; accessible; alternative; door; passage; courtyard;

    Sammanfattning : A historical study of the urban texture of Gamla Stan shows how public space has been appropriated for private needs. Streets were built over, closed off or turned into private courtyards, some of which have started to disappear, being completely internalized. LÄS MER

  7. 5. Monocular vision-based obstacle avoidance for Micro Aerial Vehicles

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Samuel Karlsson; [2020]
    Nyckelord :Obstacle avoidance; Micro Aerial Vehicles; Monovular vision; Moving obstacle; Time prediction; Pixel coordinates;

    Sammanfattning : The Micro Aerial Vehicless (MAVs) are gaining attention in numerous applications asthese platforms are cheap and can do complex maneuvers. Moreover, most of the commer-cially available MAVs are equipped with a mono-camera. LÄS MER