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Optimal algorithm of detection Gaussian source and its implementation using technology SAORI

Keywords:

A.V. Vanyasov – Scientific Employee of the Electronic Warfare Research Test Centre of Military Education-Research Center of Military Air Forces «Military Aviation acAdemy named for prof. N.E. Zhukovsky and J.A. Gagarin» (Voronezh)
V.A. Ponkin – Dr.Sci. (Eng.), Scientific Employee of the Electronic Warfare Research Test Centre of Military Education-Research Center of Military Air Forces «Military Aviation acAdemy named for prof. N.E. Zhukovsky and J.A. Gagarin» (Voronezh)


Existing optimal algorithms of detection Gaussian source are valid under some conditions, in particular: handling is led for all frequencies which are present at a spectrum of a signal; it is supposed that time of accumulation of a signal is great; measurements happen ideally synchronously, and the subsequent handling is coherent. In practice these conditions are not possible. The possibility of implementing a maximum likelihood algorithm in obtaining information parameters of the received signals in the frequency channels of any size, as well as inevitably arise in the wild fluctuations in the phase and amplitude of the received signals, causing loss of coherence. The practical realization of the optimal algorithm is evaluated by the degree of distortion of the output intensity of the effect of the system in the same frequency channel when receiving a Gaussian signal in comparison with the reception of the same system of monochromatic source. The dependences of the normalized ensemble-averaged intensity of the output effect implementations point source at various spatial frequency processing system parameters. Of chart analysis concludes that with proper selection of the size of the frequency channel and time signal acquisition can be realized in practice, the optimal algorithm for detecting Gaussian source with minimal distortion of the spatial structure of the output of the effect.
References:

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