Sökning: "Flervägsutbredning"

Hittade 3 uppsatser innehållade ordet Flervägsutbredning.

  1. 1. Evaluation of Bluetooth 5.1 as an Indoor Positioning System

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Philip Andersson; Linus Persson; [2020]
    Nyckelord :Indoor Positioning System; AoA; RSSI; IMU; Sensor Fusion; Multipath Propagation; Inomhus positioneringssystem; AoA; RSSI; IMU; Sensor Fusion; Flervägsutbredning;

    Sammanfattning : There is a high demand for Indoor Positioning Systems (IPS) due to the wide application possibilities. The main issue for localization by wireless signals in an indoor environment is the multipath propagation problem. Multipath propagation occurs when signals reflects and refract from an object, changing the signals characteristics. LÄS MER

  3. 2. PERFORMANCE ANALYSIS ON MODULATION TECHNIQUES OF W-CDMA IN MULTIPATH FADING CHANNEL

    Master-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Författare :AUN ALI TAHIR; FENG ZHAO; [2009]
    Nyckelord :Final Thesis as Part for Master program in Electrical Engineering with Emphasis on Telecommunication;

    Sammanfattning : The transmission from base station to mobile or downlink transmission using M-ary Quadrature Amplitude modulation (QAM) and Quadrature phase shift keying (QPSK) modulation scheme are consider in W-CDMA system. We can analysis the performance of these modulation techniques when the system is subjected to AWGN and multipath Rayleigh fading are consider in the channel. LÄS MER

  4. 3. Utvärdering av försvarsspecifika radiovågformer

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Magnus Kling; [2002]
    Nyckelord :Datorteknik; Simulering; radiosystem; radiokanalen; stokastisk kanalmodell; fädning; flervägsutbredning; Datorteknik;

    Sammanfattning : To be able to evaluate different radio waveforms in a laboratory environment FOI in Linköping has developed an experimental system for radio communication called Rasmus. The system consists of a transmitter, a channel emulator and a receiver. The transmitter modulates a digital signal to a desired analogue waveform. LÄS MER