Browsing by Author "Easthope, Paul F."

Now showing items 1-5 of 5

    • Expected number of alignments in a uniform random distribution 

      Easthope, Paul F. (Poznańskie Towarzystwo Przyjaciół Nauk, 2018-11)
      This paper provides equations for the expected numbers of k-point lines (here defined as narrow rectangular boxes of a given length and width) that are likely to be found in a wider square domain containing a uniform ...

    • A nonlinear model for tracking turning targets 

      Easthope, Paul F. (Poznańskie Towarzystwo Przyjaciół Nauk, 2018-11)
      This paper defines a nonlinear kinematic model designed for tracking air vehicles undergoing helical type motions, of which turning in the same plane forms a special case. For tracking purposes, a nine state nonlinear ...

    • On the Treatment of Process Noise in the Unscented Kalman Filter 

      Easthope, Paul F. (Poznańskie Towarzystwo Przyjaciół Nauk, 2017)
      A simple simulation of a turning target in two dimensions is used to show that the standard treatment of process noise in the Unscented Kalman Filter (UKF) can give rise to a potentially fragile tracking filter. In the ...

    • Probability of track impact in defended area: use of Green's theorem in the plane 

      Easthope, Paul F. (Poznańskie Towarzystwo Przyjaciół Nauk, 2018-11)
      This paper discusses a simple method for determining the probability that the predicted impact point of a track falls within a defended area, by integrating a function around the boundary of that area. The proposed method ...

    • Tracking swarms of unmanned aerial systems 

      Easthope, Paul F.; Collinson, Alan (Poznańskie Towarzystwo Przyjaciół Nauk, 2018-11)
      The proliferation of cheap Unmanned Aerial Systems (UAS) poses some significant challenges for the Ground Based Air Defence (GBAD) environment. Individual UAS are inherently difficult to detect, track, classify and identify, ...