Essays about: "gps multipath"

Showing result 1 - 5 of 14 essays containing the words gps multipath.

  1. 1. Design and Implementation of a Rocket Launcher Hybrid Navigation

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Omar Ugolini; [2023]
    Keywords : launch vehicle navigation; delayed Kalman filter; strapdown; navigering av bärraketer; fördröjt Kalman-filter; strapdown;

    Abstract : Rocket Factory Augsburg (RFA) a German New Space Startup is developing a three-stage rocket launcher aiming at LEO/SSO orbits. A fundamental responsibility of the GNC team is the development of the rocket navigation algorithm to estimate the attitude, position, and velocity allowing the guidance and control loops to autonomously steer the rocket. READ MORE

  3. 2. 5G Positioning using Machine Learning

    University essay from Linköpings universitet/Reglerteknik

    Author : Magnus Malmström; [2018]
    Keywords : 5G; Positioning; Non Line of Sight NLOS ; Urban Canyons; Machine Learning; Neural Networks; Random Forest; Detection; Neyman-Person; Generalized Likelihood Ratio Test; Kalam Filter;

    Abstract : Positioning is recognized as an important feature of fifth generation (\abbrFiveG) cellular networks due to the massive number of commercial use cases that would benefit from access to position information. Radio based positioning has always been a challenging task in urban canyons where buildings block and reflect the radio signal, causing multipath propagation and non-line-of-sight (NLOS) signal conditions. READ MORE

  4. 3. Enhancements in LTE OTDOA Positioning for Multipath Environments

    University essay from Linköpings universitet/Kommunikationssystem

    Author : Ivar Olofsson; [2016]
    Keywords : positioning; TDOA; NLOS bias; multiple TOA candidates; probabilistic method; ML estimation; LTE; simulation;

    Abstract : By using existing radio network infrastructure, a user can be positioned even where GPS and other positioning technologies lack coverage. The LTE Positioning Protocol (LPP) supports user Reference Signal Time Difference (RSTD) reports based on the Time of Arrival (TOA) for a Positioning Reference Signal (PRS). READ MORE

  5. 4. Study of the contribution of an ionospheric model embedded on a dual frequency GNSS receiver.

    University essay from KTH/Geodesi och satellitpositionering

    Author : alice Tourtier; [2016]
    Keywords : GNSS; ionospherere; delay; receiver; model;

    Abstract : GNSS (Global Navigation Satellite System) är system som gör det möjligt för en mottagare att känna sin position. Det täcker över GPS (Global Positioning System), ett system som drivs av USA, Galileo (europeisk), Beidou (kinesiska) och andra.För närvarande, med en fristående GPS-mottagare, är noggrannheten på positionen runt 1m. READ MORE

  6. 5. Map-Aided GPS Tracking in Urban Areas : Application to Runner Tracking in Sprint Orienteering

    University essay from Linköpings universitet/Reglerteknik; Linköpings universitet/Tekniska fakulteten

    Author : Mathias Hallmén; [2015]
    Keywords : GPS; GNSS; multipath; tracking; positioning; urban; sprint orienteering; particle filter; constrained motion model;

    Abstract : The GPS tracking in sprint orienteering is often a poor supplement to the viewer experience during events taking place in urban areas because of multipath effects. Since the GPS tracking of runners is an important means to making the sport more spectator friendly, it is of interest to make it more accurate. READ MORE