Sökning: "frequency modulated continuous wave"

Visar resultat 1 - 5 av 21 uppsatser innehållade orden frequency modulated continuous wave.

  1. 1. Evaluation of FMCW Radar Jamming Sensitivity

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Ludvig Snihs; [2023]
    Nyckelord :FMCW; FMCW radar; radar; frequency-modulated radar; noise jamming; frequency-modulated continuous wave radar; FMCW Jamming; Jamming; Pulse Train; Pulse Jamming; Spoofing Attack; Spoofing; Deception; Repeater Jamming; Repeater; Automotive Radar; CFAR; sensor jamming; constant false alarm rate; electronic warfare; EW; FMCW; FMCW radar; frekvensmodulerad dopplerradar; dopplerradar; radar; brusstörning; radarstörning; pulsstörning; pulståg; falskmål; vilseledning; repeterstörning; bilradar; sensorstörning; CFAR;

    Sammanfattning : In this work, the interference sensitivity of an FMCW radar has been evaluated by studying the impact on a simulated detection chain. A commercially available FMCW radar was first characterized and its properties then laid the foundation for a simulation model implemented in Matlab. LÄS MER

  3. 2. ESPRIT for DOA estimation

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

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

    Sammanfattning : 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). LÄS MER

  4. 3. Reconnaissance Radar Robot

    Uppsats för yrkesexamina på grundnivå, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Kasper Holm; Erik Henrysson; [2023]
    Nyckelord :radar; signal; processing; signal processing; state; machine; state machine; test; testing; radar testing; radar technology; frequency modulated continuous wave; fmcw; pulse radar; raspberry pi; single board computer; sbc; poe; power over ethernet; mqtt; mqtt package; python; drones; uav; unmanned aerial vehicle; drone detection; radar robot; swedish armed forces; swedish armed forces technical school; fmts; beamforming; fast fourier transform; fft; point cloud; point clustering; software design;

    Sammanfattning : During the last century, various countries' armed forces have used unmanned aerial vehicles, commonly known as drones. In recent years, strives have been made to develop small commercial drones that have allowed the general public to afford and use them for recreational purposes. LÄS MER

  5. 4. Secure Joint Radar Communications and Risk Assessment for Autonomous Driving

    Master-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :John Sandell; Qingyun Gu; [2022-05-04]
    Nyckelord :Automotive radars; Autonomous driving; V2V; Risk assessment; Joint radar communication; DSRC; FMCW; Automotive security; RadCom;

    Sammanfattning : Both radar and Vehicle-to-Vehicle (V2V) communication systems in autonomous vehicles are vulnerable to security threats. However, combining radar and V2V communication systems has the potential to overcome the threats to both systems. LÄS MER

  7. 5. Machine Learning for Radar in Health Applications : Using machine learning with multiple radars to enhance fall detection

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Kristoffer Raskov; Oliver Christiansson; [2022]
    Nyckelord :Machine learning; RNN; Bi-LSTM; radar; sensor fusion; HAR; fall detection; healthcare monitoring; Maskininlärning; RNN; Bi-LSTM; radar; sensor fusion; HAR; falldetektering; hälsoövervakning;

    Sammanfattning : Two mm-wave frequency modulated continuous wave (FMCW) radars were combined with a recurrent neural network (RNN) to perform fall detection. The purpose was to find methods to implement a multi-radar setup for healthcare monitoring and to study the resulting models’ resilience to interference and other obstacles, such as re-arranging the radars in the room. LÄS MER