This paper presents the results of a neural network hardware implementation for emitter identification. In future electronic warfare environments, pulse densities on the order of hundreds of thousands of pulses per second can be expected in any given mission. To identify hostile radar systems, a processor must be able to store enough signatures for emitters of interest that proper identifications of unknown emitters can be made. Furthermore, the processor must make this identification in "real-time". This paper presents the results obtained when the Electronically Trainable Neural Network (ETANN) hardware is used to perform emitter identification from time-sampled emitter waveforms. The ETANN is a low (4-6 bit) resolution, high speed (2 billion operations/sec) parallel processor implementing sigmoidal-based backpropagation networks. This hardware was chosen due to minimal interlayer processing times, 3 us per layer, which can allow threat identifications to be made in a matter of microseconds. For this paper, a sigmoidal-based neural network was developed, via simulation on a DEC VAX station, to discriminate between 30 emitters. The network weights were loaded on the ETANN for performance comparisons. Due to resolution constraints, the accuracy of the ETANN was typically 10%-12% lower. However, the ETANN was able to make classifications in less than 6 us. This significant processing speed, with only slight degradations in performance, makes neural network architectures viable alternatives for emitter identification.<>


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    Titel :

    Neural network hardware implementation for emitter identification


    Beteiligte:
    Zahirniak, D. (Autor:in) / Calvin, J. (Autor:in) / Rogers, S. (Autor:in)


    Erscheinungsdatum :

    01.01.1993


    Format / Umfang :

    455443 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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