Subbanding technique has been applied in wideband (WB) digital array radar systems to address the challenge of high-speed signal processing and WB jamming cancellation. This article reveals that the well-established subband decomposition by polyphase subband filtering could still leave jamming decorrelation post subbanding, which would deteriorate the jamming cancellation performance. A novel implementation of the subbanding processor is then proposed by isolating digital down conversion incorporated in the subbanding operation and performing it at baseband explicitly. This method provides flexibility to process segments of the digitized spectrum, which accommodates radar receivers to contemporary requirements of frequency agility. This article proceeds to propose a joint jamming cancellation scheme for use in the complicated real-world electronic warfare scenario including both mainlobe and sidelobe jamming. The jamming cancellation performance is evaluated by simulation with a detailed investigation on jamming decorrelation mitigation and subbanding implementation consideration. More results are shown by testing the cancellation scheme on data collected with an experimental airborne WB digital array radar in a multijamming scenario toward sea surface targets.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Implementation of an Adaptive Wideband Digital Array Radar Processor Using Subbanding for Enhanced Jamming Cancellation


    Contributors:
    Chen, Xinzhu (author) / Shu, Ting (author) / Yu, Kai-Bor (author) / Zhang, Yu (author) / Lei, Zhiyong (author) / He, Jin (author) / Yu, Wenxian (author)


    Publication date :

    2021-04-01


    Size :

    4116133 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Jamming Wideband Radar Using Interrupted-Sampling Repeater

    Dejun Feng / Letao Xu / Xiaoyi Pan et al. | IEEE | 2017



    Jamming Against Phased Array Radar

    Zhang, Xixiang / Xiao, Kaiqi / Gu, Jie | Springer Verlag | 2022



    An Optimal Array Processor for GPS Interference Cancellation

    Bar-Ness, Y. / Moelker, D. J. / IEEE et al. | British Library Conference Proceedings | 1996