Radar Range Deception With Time-Modulated Scatterers

Vitali Kozlov*, Dmytro Vovchuk, Pavel Ginzburg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Modern radar systems are designed to have high Doppler tolerance to detect fast-moving targets. This means range and Doppler estimations are inevitably coupled, opening pathways to concealing objects by imprinting artificial Doppler signatures on the reflected echoes. Proper temporal control of the backscattered phase can cause the investigating radar to estimate the wrong range and velocity, thus cloaking the real position and trajectory of the scatterer. This deception method is exploited here theoretically for arbitrary Doppler tolerant waveforms and then tested experimentally on an example of the linear frequency modulated (LFM) radar, which is the most common waveform of that class used in practice. The method allows retaining radio silence with a semi-passive (battery-assisted) approach that can work well with time-dependent metasurfaces. Furthermore, as an insight into new capabilities, we demonstrate that temporally concealed objects could even be made to appear closer than they truly are without violating the laws of relativity.

Original languageEnglish
Pages (from-to)4486-4491
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Volume71
Issue number5
DOIs
StatePublished - 1 May 2023

Keywords

  • Electronic counter-countermeasures (ECCMs)
  • electronic countermeasures (ECMs)
  • radar deception

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