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A new approach to deinterleaving for radar intercept receivers

机译：雷达拦截接收机解交织的新方法

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摘要

We present a new approach to thedesign of deinterleavers for radar intercept receivers. We design the deinter-leaver to target frequency and pulse repetition frequency (PRF) agile pulse Doppler emitters, a class of radar sources that is difficult to deinterleave with traditional approaches. Targeting this specific class of emitters allows us to take advantage of the coherent processing signal structure that is common to emitters in the class. The deinterleaver extracts constant pulse repetition interval (PRI) pulse packets from the receiver signal, and then clusters the pulse packets on the basis of coherency. Pulse packets that come from the same radar source form coherent signal structures, pulse packets from different sources do not. The paper describes the filtering algorithms that extract the pulse packets, presents an analysis of signal coherency that provides a priori estimate of the effectiveness of the design, and describes the clustering algorithms that separate the pulse packets into deinterleaved signal streams.
机译：我们提出了一种用于雷达拦截接收机的解交织器设计的新方法。我们将解交织器设计为目标频率和脉冲重复频率（PRF）敏捷脉冲多普勒发射器，这是一类很难用传统方法解交织的雷达源。针对这一特定类别的发射器，使我们能够利用该类发射器所共有的相干处理信号结构。解交织器从接收器信号中提取恒定脉冲重复间隔（PRI）脉冲包，然后基于相干性对脉冲包进行聚类。来自同一雷达源的脉冲包形成相干信号结构，而来自不同源的脉冲包则没有。本文描述了提取脉冲包的滤波算法，提供了对信号相干性的分析，可以对设计的有效性进行先验估计，并描述了将脉冲包分离为去交织信号流的聚类算法。

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