TY - JOUR
T1 - Radar Range Deception With Time-Modulated Scatterers
AU - Kozlov, Vitali
AU - Vovchuk, Dmytro
AU - Ginzburg, Pavel
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2023/5/1
Y1 - 2023/5/1
N2 - 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.
AB - 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.
KW - Electronic counter-countermeasures (ECCMs)
KW - electronic countermeasures (ECMs)
KW - radar deception
UR - http://www.scopus.com/inward/record.url?scp=85151354584&partnerID=8YFLogxK
U2 - 10.1109/TAP.2023.3255108
DO - 10.1109/TAP.2023.3255108
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AN - SCOPUS:85151354584
SN - 0018-926X
VL - 71
SP - 4486
EP - 4491
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 5
ER -