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A novel method to detect and localize LPI radars

Hejazikookamari, F ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1109/TAES.2018.2885109
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2019
  4. Abstract:
  5. In this study, a new passive method suitable for geolocating low probability of intercept (LPI) radars is introduced. The method uses two electronic support receivers placed on a fast moving platform (e.g., an airplane or a satellite). The proposed method has a high processing gain, which makes it highly suitable for very weak LPI signals. The method processing gain was analytically derived and illustrated with simulation to determine if the proposed method can detect LPI radars in much lower SNRs compared to regular time-frequency LPI detection methods. Also, the resolution of the proposed method in both range and cross-range directions in radar location finding was analyzed. The results showed that the method is capable of radar location finding for complex radars and in complicated electromagnetic environments. © 1965-2011 IEEE
  6. Keywords:
  7. Emitter location finding ; low probability of intercept (LPI) radar ; short-time Fourier transform (STFT) ; time-frequency transform ; Image resolution ; Location ; Matched filters ; Radar antennas ; Receivers (containers) ; Space applications ; Tracking radar ; Emitter location ; Low probability of intercept ; Radar detection ; Short time Fourier transforms ; Time frequency transform ; Space-based radar
  8. Source: IEEE Transactions on Aerospace and Electronic Systems ; Volume 55, Issue 5 , 2019 , Pages 2327-2336 ; 00189251 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/8573833