Essays about: "signal strength"

Showing result 1 - 5 of 163 essays containing the words signal strength.

  1. 1. Speckles in Coherent LiDAR

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Ivar Nyman; [2022]
    Keywords : Spckle; LiDAR; coherent;

    Abstract : Speckles are a phenomenon which often appears in situations involving lasers. Their properties can be used as an advantage but in the case of LiDAR applications, they’re purelydestructive. The peaks and troughs of the intensity distribution across the collimatinglens can be seen as variations in signal strength at the detector. READ MORE

  2. 2. Simple RSRP Fingerprint Collection Setup and Indoor Positioning in 5G

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Sofi Flink; Annie Tallund; [2022]
    Keywords : 5G; indoor positioning; radio fingerprint; k nearest neighbor; naive bayes; automated data collection; Technology and Engineering;

    Abstract : Solving for a way to accurately predict the position of a user equipment is crucial in an array of applications within 5G new radio. One approach is to form unique identifiers, also known as fingerprints, and map them to positional data in an area. READ MORE

  3. 3. Human Body Presence Detection in Water Environments Using Pulse Coherent Radar

    University essay from Malmö universitet/Institutionen för datavetenskap och medieteknik (DVMT)

    Author : Jens Moths; Frotan Frotan; [2022]
    Keywords : presence detection; dead man s grip; micro; mmwave; radar; radome; a111; acconeer; radinn; direct leakage; electric surfboard; närvaro detektering; dödmansgrepp; micro; mmwave; radar; radome; a111; acconeer; radinn; direktläckage; elektrisk surfbräda;

    Abstract : New technology in radar opens up new possibilities for cheap and easily integrated human body presence detection. In this work, we aim to make a proof of concept that replaces the "dead man’s grip" on an electric surfboard with a more convenient wireless system based on micro radars. READ MORE

  4. 4. Fluid Surface Velocity Measurement Using Millimeter-Wave Radar Sensor

    University essay from Lunds universitet/Matematisk statistik

    Author : Gustav Broman; Leo Ghatnekar Nilsson; [2022]
    Keywords : Fluid flow surface measurement; velocity estimation; FFT; fast-time phase change; radar.; Mathematics and Statistics;

    Abstract : Contactless fluid surface velocity measurements with radar technology presents novel ways of determining fluid flow. The Acconeer A121 sensor is used, which is a pulsed coherent 60 GHz millimeter-wave radar, with high accuracy and low energy consumption. READ MORE

  5. 5. Radio signal detection and localisation for uncovering unauthorised signals in an examination environment

    University essay from Göteborgs universitet/Institutionen för data- och informationsteknik

    Author : Marcus Adler; Otto Lundin; Lam Nguyen; Nour Alddin Taki; [2021-09-14]
    Keywords : Cheating; Anti-cheat; Cheat-detection; Radio signal detection; Multilateration; SDR; ADALM-PLUTO; Signal localisation;

    Abstract : Examination is a fundamental part of education, both for students and institutions. Cheating on exams is something educational institutions are trying to reduce. One form of cheating is the use of a mobile phone to live-stream the exam to pass the test. READ MORE