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Showing result 1 - 5 of 23 essays matching the above criteria.

  1. 1. Robust Aircraft Positioning using Signals of Opportunity with Direction of Arrival

    University essay from Linköpings universitet/Reglerteknik

    Author : Erik Axelsson; Sebastian Fagerstedt; [2023]
    Keywords : Simultaneous localisation and mapping; direction of arrival; signals of opportunity; extended Kalman filter; positioning;

    Abstract : This thesis considers the problem of using signals of opportunity (SOO) with known direction of arrival (DOA) for aircraft positioning. SOO is a collective name for a wide range of signals not intended for navigation but which can be intercepted by the radar warning system on an aircraft. READ MORE

  3. 2. Detection and Tracking of Elephants using Seismic Direction of Arrival Estimates

    University essay from Linköpings universitet/Reglerteknik

    Author : Albin Westlund; Daniel Goderik; [2023]
    Keywords : Wildlife Conservation; DOA Estimation; Geophone Array; Target Tracking; Elephant Detection;

    Abstract : As human settlement expands into the natural habitats of wild animals, the conflict between humans and wildlife increases. The human-elephant conflict is one that causes a tremendous amount of damage, often to poor villages close to the savannah. READ MORE

  4. 3. ESPRIT for DOA estimation

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi

    Author : Filip Grimsholm; Martin Saarmann; [2023]
    Keywords : ESPRIT; FMCW; DOA; radar; estimation; comparison; ESPRIT; FMCW; DOA; radar; estimering; jämförelse;

    Abstract : Radar is a tool that has had a tremendous impact since its discovery. This thesis evaluates an algorithm called ESPRIT. ESPRIT is used in radar to estimate the angles to detected objects. The angle of an object is referred to as its DOA (Direction of arrival). READ MORE

  5. 4. Gunshot Detection and Direction of Arrival Estimation Using Machine Learning and Received Signal Power

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : David Grahn; Timothy Cooper; [2023]
    Keywords : Direction of arrival; Machine Learning; Received signal power; Project Ngulia; Gunshot Detection; Poaching;

    Abstract : Poaching is a persistent issue that threatens many of earth’s species including therhino. The methods used by poachers are varied, but many use guns to carry outtheir illegal activities. Gunfire is extremely loud and can be heard for kilometres. READ MORE

  6. 5. A Study of Direction of Arrival Methods Based on Antenna Arrays in Presence of Model Errors.

    University essay from Uppsala universitet/Signaler och system

    Author : Julia Sjödin; [2022]
    Keywords : Direction of Arrival; DOA; WSF; MUSIC; TLS-ESPRIT; Extended Kalman filter; model error;

    Abstract : Methods for Direction of Arrival, DOA estimation of multiple objects based on phased arrayantenna technology have many advantages in for example electronic warfare and radarapplications. However, perfect calibration of an antenna array can seldom be achieved. READ MORE