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- W4385877460 abstract "<p>This paper presents a new design of diverse frequency time-modulation for linear frequency modulated (LFM) radar passive false target spoofing. To realize the passive diverse frequency time-modulation, the modulated metasurface is designed accordingly, which is composed by a set of elements, each of which is independently time-modulated to realize specific false targets in the high-resolution range profile (HRRP) of the radar system. Thanks to the control of the modulation scheme in each element and the combined response of the overall surface, we demonstrate the capability to realize several false target patterns consisting of single and multiple targets symmetrically, or asymmetrically, distributed around the actual target. A HRRP general expression of the time modulated diverse frequency metasurface at different observation angles is given to show the relation between the generated false targets and frequency components. Since having more flexible capacity of reflected signal manipulation comparing to false target spoofing only through time modulation with consistent modulation frequency, the proposed method has enhanced performance on control of false targets at different observation angles. Both simulated and measured results demonstrate the validity of false targets manipulation, demonstrating its effectiveness as electromagnetic countermeasure for achieving radar camouflaging and deception. </p>" @default.
- W4385877460 created "2023-08-17" @default.
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- W4385877460 date "2023-08-16" @default.
- W4385877460 modified "2023-10-04" @default.
- W4385877460 title "Diverse Frequency Time-Modulation for Passive False Target Spoofing: Design and Experiment" @default.
- W4385877460 doi "https://doi.org/10.36227/techrxiv.21644972.v2" @default.
- W4385877460 hasPublicationYear "2023" @default.
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