Using teal-time image processing we have demonstrated a low bit-rate free-space optical communication system at a range of more than 20km with an average optical transmission power of less than 2mW. The transmitter is an autonomous one cubic inch microprocessor-controlled sensor node with a laser diode output. The receiver is a standard CCD camera with a 1-inch aperture lens, and both hardware and software implementations of the video semaphore decoding algorithm. With this system sensor data can be reliably transmitted 21 km form San Francisco to Berkeley.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Video semaphore decoding for free-space optical communication


    Beteiligte:
    Last, Matthew (Autor:in) / Fisher, Brian (Autor:in) / Ezekwe, Chinwuba (Autor:in) / Hubert, Sean M. (Autor:in) / Patel, Sheetal (Autor:in) / Hollar, Seth (Autor:in) / Leibowitz, Brian S. (Autor:in) / Pister, Kristofer S. J. (Autor:in)

    Kongress:

    Real-Time Imaging V ; 2001 ; San Jose,CA,United States


    Erschienen in:

    Erscheinungsdatum :

    2001-04-27





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    From semaphore to satellite

    Michaelis, Anthony R. | TIBKAT | 1965


    THE PORTSMOUTH SEMAPHORE

    Mead, Hilary P. | Taylor & Francis Verlag | 1939


    Sargent's automatic semaphore

    Engineering Index Backfile | 1899


    Long's electrical Semaphore railroad signal

    Engineering Index Backfile | 1888


    Uniformity in semaphore signals

    Engineering Index Backfile | 1896