Browsing NTNU Open by Author "Albert, Anders"

Now showing items 1-10 of 10

    • Combined Optimal Control and Combinatorial Optimization for Searching and Tracking Using an Unmanned Aerial Vehicle 

      Albert, Anders; Imsland, Lars Struen (Journal article; Peer reviewed, 2018)
      Combined searching and tracking of objects using Unmanned Aerial Vehicles (UAVs) is an important task with many applications. One way to approach this task is to formulate path-planning as a continuous optimal control ...

    • Disturbance Attenuation in Managed Pressure Drilling 

      Albert, Anders (Master thesis, 2013)
      In reservoirs where multiple wells have been drilled, the window that the pressure has to stay within becomes smaller. This calls for tight control of the pressure profile in the well. An extra challenge is provided when ...

    • Disturbance Rejection by Feedback Control in Offshore Drilling: Experimental Results 

      Albert, Anders; Aamo, Ole Morten; Godhavn, John-Morten; Pavlov, Alexey (Journal article; Peer reviewed, 2014)
      As oil exploration and development costs rise, the oil industry increases its efforts to improve oil recovery (IOR) from existing fields. IOR is achieved mainly by drilling more wells, but drilling in partially depleted ...

    • Experimental Monitoring of Sea Ice Using Unmanned Aerial Systems 

      Flåten, Andreas L. (Master thesis, 2015)
      The exploration of arctic seas for offshore oil- and gas resources has received increasing interest the past few years. Despite the recent dramatic fall in oil prices, estimates indicate that as much as 22% of the worlds ...

    • Model predictive waypoint following for an UAV using end-time bisection 

      Hektoen, Nikolai Mejdell (Master thesis, 2016)
      Ice surveillance is motivated by a need to improve the safty for shipping and offshore industries in the arctic waters. This thesis describes the implementation and simulation results for a model predictive controller (MPC) ...

    • Performance Bounds for Tracking Multiple Objects using a Single UAV 

      Albert, Anders; Imsland, Lars Struen (Chapter, 2017)
      In this paper we calculate probabilistic estimates for the size of an area a single unmanned aerial vehicle (UAV) can expect to monitor when tracking multiple objects. The objects are assumed to move according to a linear ...

    • Suppressing Pressure Oscillations in Offshore Drilling: Control Design and Experimental Results 

      Albert, Anders; Aamo, Ole Morten; Godhavn, John-Morten; Pavlov, Alexey (Journal article, 2015)
      As oil exploration and development costs rise, the oil industry increases its efforts to improve oil recovery (IOR) from existing fields. IOR is achieved mainly by drilling more wells, but drilling in partially depleted ...

    • Survey: Mobile Sensor Networks for Target Searching and Tracking 

      Albert, Anders; Imsland, Lars Struen (Journal article; Peer reviewed, 2018)
      Mobile sensor networks can be employed in multiple applications, such as search and rescue, border patrol, battle scenarios and environmental monitoring. In this survey, we review the literature utilising mobile sensor ...

    • UAV path planning using MILP with experiments 

      Albert, Anders; Leira, Frederik Stendahl; Imsland, Lars Struen (Journal article; Peer reviewed, 2017)
      In this paper, we look at the problem of tracking icebergs using multiple Unmanned Aerial Vehicles (UAVs). Our solutions use combinatorial optimization for UAV path planning by formulating a mixed integer linear programing ...

    • Unmanned Aerial Vehicle(s) Trajectory Planning for Target Searching and Tracking 

      Albert, Anders (Doctoral theses at NTNU;2018:225, Doctoral thesis, 2018)
      In this thesis, we introduce three trajectory planning algorithms for nonholonomic mobile sensors used for target tracking and the extended problem target searchings and tracking. These problems are motivated by the ...