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http://dx.doi.org/10.22156/CS4SMB.2018.8.5.137

A Detection Algorithm for Modulation Types of Radar Signals Using Autocorrelation Comparison Ranges  

Kim, Gwan-Tae (Department of Computer Science, Chungbuk National University)
Ju, Youngkwan (Department of Computer Science, Chungbuk National University)
Jeon, Joongnam (Department of Computer Science, Chungbuk National University)
Publication Information
Journal of Convergence for Information Technology / v.8, no.5, 2018 , pp. 137-143 More about this Journal
Abstract
Generally, a radar signal is modulated and transmitted in order to avoid signal detection. In electronic warfare, the specification of a radar is recognized by analysing the received radar pulses. In this paper, we propose an algorithm to recognize the PRI (Pulse Repetition Interval) type of radar signals. This algorithm uses the autocorrelation technique applying different comparison ranges according to the PRI type. It applies a short comparison window to stable and staggered PRI, and a relatively large comparison range to jittered PRI. The experiment shows that the proposed algorithm can discriminate the PRI type of radar pulses correctly. For the more, it can find out the stagger level of staggered type of radar signals.
Keywords
Autocorrelation; PRI(Pulse Repetition Interval); Fixed PRI; Stagger PRI; Jitter PRI; PDW(Pulse Description Word);
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