Essays about: "demodulation"

Showing result 16 - 20 of 49 essays containing the word demodulation.

  1. 16. Cross-subframe channel estimation for low-complexity devices in LTE

    University essay from KTH/Teknisk informationsvetenskap

    Author : Hugo Lime; [2017]
    Keywords : ;

    Abstract : One of the most critical issues of wireless communication systems is the timevaryingand frequency-selective channel. Knowledge about the channel greatlyimproves communication performance. It enables coherent demodulation andmeasurements of Signal to Noise Ratio (SNR) and Channel Quality Indicators(CQI). READ MORE

  3. 17. Wireless system design : NB-IoT downlink simulator

    University essay from Uppsala universitet/Signaler och System

    Author : Piotr Krasowski; Douglas Troha; [2017]
    Keywords : nb-iot; lte; lte-a; downlink; simulator; wireless;

    Abstract : The newly defined NB-IoT standard currently lacks a toolkit and simulator. In order to develop algorithms for this new standard there is a need for channels and signals as reference during tests. MATLAB is commonly used for testing LTE signals and therefore the toolkit was developed in this environment. READ MORE

  4. 18. Implementation of vital sign detection algorithms on a high-performance digital signal processor

    University essay from Linköpings universitet/Fysik och elektroteknik; Linköpings universitet/Tekniska högskolan

    Author : Tobias Pettersson; [2017]
    Keywords : Digital Signal Processing; Fast Fourier Transform; Phase-demodulation; MATLAB; Graphical User Interface;

    Abstract : This thesis investigates the possibility of detecting weak vital signs, such as heartbeat and respiration rate, through the implementation of quadrature demodulation and frequency spectrum algorithms on a high performance digital signal processor. This thesis has been part of an ongoing research project at Linkoping University, with the aim to develop a sensor platform for wireless measurements of these vital signs. READ MORE

  5. 19. Implementation of an SDR in Verilog

    University essay from Linköpings universitet/Kommunikationssystem

    Author : Anders Skärpe; [2016]
    Keywords : SDR; software defined radio; energy consumption; power consumption; Verilog;

    Abstract : This report presents an implementation of the software part in a software definedradio. The radio is not entirely implemented in software and therefore there arecertain limitations on the received signal. The parts implemented are oscillator,decimation filter, carrier synchronization, time synchronization, package detection,and demodulation. READ MORE

  6. 20. Filter Bank Multi-Carrier Modulation

    University essay from KTH/Kommunikationsteori

    Author : Frédéric De Poret; [2015]
    Keywords : ;

    Abstract : During the last years, multi-carrier modulations have raised a particular interest due to their high spectral efficiency and the possible assumption of flat frequency fading. The most broadly used multi-carrier modulation is the CP-OFDM. READ MORE