In proposed scheme for reception of amplitude- or frequency-modulated signals transmitted optically through atmosphere, main receiver aperture divided into subapertures equipped with receivers, and outputs of receivers combined noncoherently. Multiple subaperture receivers used instead of attempting to focus all light from single large aperture onto one receiver. Outputs of receivers combined after demodulation. System will not perform as well as fully coherent system, but surpasses single-large-aperture system in presence of atmospheric turbulence. Offers superior performance in presence of distorted wavefront and/or imperfect receiver optics.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Noncoherent Combination Of Optical-Heterodyne Outputs


    Contributors:

    Published in:

    Publication date :

    1990-10-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Noncoherent pulse compression

    Levanon, N. | IEEE | 2006


    CORRESPONDENCE - Noncoherent Pulse Compression

    Levanon, N. | Online Contents | 2006


    Optical phase shift by noncoherent heat phonons [3239-10]

    Lisin, V. N. / Shegeda, A. M. / Khabibullin, B. M. et al. | British Library Conference Proceedings | 1997


    Noncoherent block demodulation of PSK

    Leib,H. / Pasupathy,S. / McGill Univ.,Dep.of Electrical Engng.,CA et al. | Automotive engineering | 1990


    A noncoherent adaptive detection technique

    Monticciolo, P. / Kelly, E.J. / Porakis, J.G. | IEEE | 1992