A multifunction radar (MFR) can simultaneously execute multiple different tasks on the radar timeline and has the characteristics of flexible working mode, instantaneous switching of beam direction, and adaptive signal modulation and parameters. From the perspective of the electronic reconnaissance, pulse sequence segmentation for the MFR, followed by clustering segments into waveform units or radar words, is the primary task of recognizing MFR's behavior or state. This article develops two unsupervised pulse sequence segmentation methods using the stepped pulse amplitude sequences intercepted by multiple reconnaissance receivers from different observation angles, and both of them have two core steps: sliding-window-based hypothesis test excluding the case that pulses in the sliding window belong to the same waveform unit, and adjacent point mergence further merging false switching points into true switching points. Computer simulations verify that the proposed methods can perform pulse sequence segmentation without any prior information and exhibits superior performance compared to competing methods in harsh conditions, such as extremely low signal-to-noise ratios and high rates of missing or spurious pulses.


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    Title :

    Pulse Sequence Segmentation for Multifunction Radar Using Multiple Reconnaissance Receivers


    Contributors:
    Wang, Sen (author) / Song, Dan (author) / Min, Gang (author) / Peng, Bo (author)


    Publication date :

    2025-06-01


    Size :

    3425010 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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