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Browsing by Subject "digital signal processing"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Realization of Picture in Picture system based on TMS320DM642 digital signal
    (Wydawnictwa AGH, 2011) Jeżewski, Sławomir; Błaszczyk, Sylwester
    W niniejszej publikacji została przedstawiona praktyczna realizacja systemu transmisji obrazu z autonomicznego robota mobilnego do operatora. Robot wyposażony jest w zespół kamer obserwujących wycinki przestrzeni wokół robota w różnych zakresach widmowych. Do przekazania informacji z tak rozbudowanego/wielokamerowego systemu wykorzystano koncepcję Picture in Picture (PiP) znanej z techniki telewizyjnej. Niniejszy artykuł przedstawia realizację tej techniki z użyciem procesora sygnałowego TMS320DM642 oraz wbudowanych w procesor układów Enhanced Direct Memory Access (EDMA). Opracowane rozwiązanie charakteryzuje się dużą wydajnością oraz niskim poborem mocy.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Simulator of intonation errors: a tool for controlling parameters of acoustic signals in auditory tests
    (Wydawnictwa AGH, 2008) Pluta, Marek
    Intonation is one of the key elements of music performance and music perception, yet, due to a lack of suitable tools research on this subject was scarce. This paper presents a new and original tool developed particularly for a purpose of intonation perception research: the hardware-software simulator of intonation errors. The simulator is a controllable source of acoustic signals with properties similar to real musical signals. The paper discusses needs and possibilities of realistic simulation, as well as design and application of the simulator. Sample results of auditory tests that investigate impact of simulation's realism on intonation perception are presented.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    The use of EMG signal in human-machine interface
    (Wydawnictwa AGH, 2015) Winiarski, Dawid
    In this paper, the analysis and processing algorithms of EMG signals have been presented. The main purpose of the research was to verify the usefulness of EMG signals in controlling a bionic prosthesis or exoskeleton. The physiological nature of the EMG signal has been introduced. An original measurement system has been presented. Analysis of the time and frequency domains of the signal has been conducted to extract vital information that the signal carries. Methods of using the EMG signal as a control signal for devices that operate in a human-machine interface have been proposed. The result shows that a processed EMG signal can be used as a basis for a simple control system.