Browsing by Author "Ånonsen, Kjetil Bergh"

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    • Fusing of a continuous output PDR algorithm with an ultrasonic positioning system 

      Thio, Vincent Martello Kwie Hoe; Aparicio, Joaquin; Ånonsen, Kjetil Bergh; Bekkeng, Jan Kenneth; Booij, Wilfred (2021-12-09)
      The availability of inertial navigation sensors in smartphones has facilitated the development of pedestrian dead reckoning (PDR) models on a large scale. These models often consist of a step detection algorithm combined ...

    • Rate table tests of low-cost inertial measurement units 

      Ånonsen, Kjetil Bergh; Skaugen, Atle (2014-11-13)
      This report gives a summary of the results of a series of tests of low cost inertial measurement units conducted at FFI in late 2012. The units were all based on microelectromechanical technology (MEMS) and included the ...

    • Relative Heading Estimation for Pedestrians Based on the Gravity Vector 

      Thio, Vincent; Ånonsen, Kjetil Bergh; Bekkeng, Jan Kenneth (2021-03-15)
      Inertial navigation of pedestrians carrying a smart device is a core component of many indoor positioning systems. While infrastructure-based solutions typically depend on an installation of dedicated hardware, inertial ...

    • Terrain referenced navigation using sand dunes and sand ripples in presence of tides 

      Hagen, Ove Kent; Ånonsen, Kjetil Bergh (2018)
      We investigated using terrain referenced navigation in shallow water in the presence of unknown tide, with an autonomous underwater vehicle equipped with a high resolution bathymetric sensor. The mission area had both ...