Essays about: "Datorteknik"

Showing result 1 - 5 of 142 essays containing the word Datorteknik.

  1. 1. Battery-free Visible Light Sensing

    University essay from Uppsala universitet/Avdelningen för datorteknik

    Author : Andreas Soleiman; [2019]
    Keywords : Networked embedded systems; Visible light sensing; RF backscatter; Energy harvesting;

    Abstract : In this thesis, we show that it is possible to design a battery-free light sensing system that can sense and communicate hand gestures while operating fully on harvested power from indoor light. We present two main innovations that push our system to tens of microwatts of power to enable battery-free operation. READ MORE

  2. 2. Implementation of High-Speed 512-Tap FIR Filters for Chromatic Dispersion Compensation

    University essay from Linköpings universitet/Datorteknik; Linköpings universitet/Datorteknik

    Author : Cheolyong Bae; Madhur Gokhale; [2018]
    Keywords : DSP; VHDL; FIR; Digital communication; Optical networks; Chromatic dispersion;

    Abstract : A digital filter is a system or a device that modifies a signal. This is an essential feature in digital communication. Using optical fibers in the communication has various advantages like higher bandwidth and distance capability over copper wires. READ MORE

  3. 3. One Million-Point FFT

    University essay from Linköpings universitet/Datorteknik; Linköpings universitet/Datorteknik

    Author : Tobias Mellqvist; Hans Kanders; [2018]
    Keywords : Large FFT; FFT; Cooley–Tukey; SDF; Binary tree; FPGA; triangular matrix;

    Abstract : The goal of this thesis has been to implement a hardware architecture for FPGA that calculates the fast Fourier transform (FFT) of a signal using one million samples. The FFT has been designed using a single-delay feedback architecture withrotators and butterflies, including a three-stage rotator with one million rotation angles. READ MORE

  4. 4. Accelerated Simulation of Modelica Models Using an FPGA-Based Approach

    University essay from Linköpings universitet/Datorteknik; Linköpings universitet/Datorteknik

    Author : Herman Lundkvist; Alexander Yngve; [2018]
    Keywords : FPGA; Modelica; VHDL; MBSE; model simulation; ODE; HLS; hardware acceleration; PCIe; ZYNQ;

    Abstract : This thesis presents Monza, a system for accelerating the simulation of modelsof physical systems described by ordinary differential equations, using a generalpurpose computer with a PCIe FPGA expansion card. The system allows bothautomatic generation of an FPGA implementation from a model described in theModelica programming language, and simulation of said system. READ MORE

  5. 5. Usage of Bluetooth Low Energy for Weather Measurements

    University essay from Linköpings universitet/Datorteknik; Linköpings universitet/Datorteknik

    Author : Viktor Gustafsson; Calle Waller; [2018]
    Keywords : Bluetooth Low Energy;

    Abstract : For every year the importance of lowering energy consumptionof our devices gets more important. Wireless devicesget smaller which leads to the fact that they need smallerbatteries than earlier versions. At the same time the customersstill have high requirements on the battery time. READ MORE