Multiple-stage adaptive architectures are conceived to face with the problem of target detection buried in noise, clutter, and intentional interference. First, a scenario where the radar system is under the electronic attack of noiselike interferers is considered. In this context, two sets of training samples are jointly exploited to devise a novel two-step estimation procedure of the interference covariance matrix. Then, this estimate is plugged in the adaptive matched filter to mitigate the deleterious effects of the noiselike jammers on radar sensitivity. Besides, a second scenario, which extends the former by including the presence of coherent jammers, is addressed. Specifically, the sparse nature of data is brought to light and the compressive sensing paradigm is applied to estimate target response and coherent jammers amplitudes. The likelihood ratio test, where the unknown parameters are replaced by previous estimates, is designed and assessed. Remarkably, the sparse approach allows for echo classification and estimation of both angles of arrival and number of the interfering sources. The performance analysis, conducted resorting to simulated data, highlights the effectiveness of the newly proposed architectures also in comparison with suitable competing architectures (when they exist).


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    Titel :

    New ECCM Techniques Against Noiselike and/or Coherent Interferers


    Beteiligte:
    Yan, Linjie (Autor:in) / Addabbo, Pia (Autor:in) / Hao, Chengpeng (Autor:in) / Orlando, Danilo (Autor:in) / Farina, Alfonso (Autor:in)


    Erscheinungsdatum :

    2020-04-01


    Format / Umfang :

    1731810 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Radar Architectures Against Coherent Interferers

    Yan, Linjie / Hao, Chengpeng / Addabbo, Pia et al. | IEEE | 2019


    Why eccm

    Meskill, W.D. | Tema Archiv | 1976


    Guided missile ecm/eccm

    Johnston, S.L. | Tema Archiv | 1978


    ECCM in battlefield communications

    Ribchester, E. | Tema Archiv | 1983