Search for dissertations about: "global positioning system GPS problems"

Showing result 1 - 5 of 8 swedish dissertations containing the words global positioning system GPS problems.

  2. 1. Detail Surveying with GPS

    Author : Kjell Almgren; Lars Sjöberg; []
    Keywords : ;

    Abstract : Abstract In the past ten years, the Global Positioning System (GPS) has revolutionized navigation and positioning at or near the surface of the Earth. Even though it is developed and authorized by the US military forces, it has found a remarkable civilian use. In most uses of GPS, the position accuracy is in the order of metres. READ MORE

  4. 2. Key Technologies in Low-cost Integrated Vehicle Navigation Systems

    Author : Yueming Zhao; Lars E. Sjöberg; Milan Horemuž; Hossein Nahavandchi; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GPS; INS; MEMS; error modelling; integration structure; lane detection; camera motion; balance adjustment; sensor array;

    Abstract : Vehicle navigation systems incorporate on-board sensors/signal receivers and provide necessary positioning and guidance information for land, marine, airborne and space vehicles. Among different navigation solutions, the Global Positioning System (GPS) and an Inertial Navigation System (INS) are two basic navigation systems. READ MORE

  5. 3. Towards Enabling Exploration of Planetary Subterranean Environments using Unmanned Aerial Vehicles

    Author : Akash Patel; George Nikolakopoulos; Savvas Loizou; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Robotics and Artificial Intelligence; Robotik och artificiell intelligens;

    Abstract : This thesis presents a novel navigation framework established to enable the exploration of planetary subterranean areas with Unmanned Aerial Vehicles (UAVs). The key contributions of this thesis work form a robot-safe rapid navigation framework that utilizes a novel bifurcating frontier-based exploration approach. READ MORE

  6. 4. Autonomous Localization in Unknown Environments

    Author : Jonas Callmer; Fredrik Gustafsson; Paul Havinga; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Localization; indoor positioning; heading estimation; magnetometers;

    Abstract : Over the last 20 years, navigation has almost become synonymous with satellite positioning, e.g. the Global Positioning System (GPS). On land, sea or in the air, on the road or in a city, knowing ones position is a question of getting a clear line of sight to enough satellites. READ MORE

  7. 5. Two papers on consistent estimation of a route choice model and link speed using sparse GPS data

    Author : Masoud Fadaei Oshyani; Anders Karlström; Marcus Sundberg; Carlo Giacomo Prato; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Global Positioning System and nomad devices are increasingly used to provide data from individuals in urban traffic networks. In these two papers we focus on consistent estimators of a route choice model and link speed. READ MORE