Under the threat condition, enemy’s detection proficiencies through surveillance or guided weapon system, signatures reduction by technique of hiding, coating, blending, and deception (i.e., forming false signature of actual targets) are crucial to increase the survivability of the fighter or combat...
Metasurfaces, promising technology exemplified by their precise manipulation of incident wave properties and exquisite control over electromagnetic field propagation, offer unparalleled benefits when integrated into radar systems, providing higher resolu
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the micro-Doppler signature detection of the low RCS targets. As low RCS targets are the recent threats of our warfare, we have to be more specific in these detection. FMCW-photonics radar is nowadays using for autonomous vehicles and surveillance system industries [136]. Short-time Fourier tra...
microDoppler signaturemonostatic systemmultistatic radarPreliminary results on the use of multistatic radar and micro-Doppler analysis to detect and discriminate between micro-drones hovering carrying different payloads are presented. Two suitable features related to the centroid of the micro-Doppler ...
A SIMO FMCW radar radiates a series of signals, calledchirps, whose instantaneous frequency increases linearly over time. Mathematically, achirpcan be expressed as: sT(t)=aTej2π∫0t(f0+ρt)dt=aTej2π(f0+ρ2t)t, (1) whereaTis a complex number indicating the amplitude and the initial ...
The communication message is encoded using PPM while the radar signature is embedded in the sequence of the random phase modulation. The ADS-B radar signal and system design are discussed thoroughly in this paper, and computer simulation demonstrates that the proposed approach allows the ADS-B ...
Both measurements show the signature of the internal and antenna couplings, which can be removed by subtracting the free space measurement. No window function was applied before the inverse Fourier transform. 4.5. Experimental determination of the vertical resolution WISDOM is also expected to provide ...
Since these engine parts are in rotational periodic motion with respect to the aircraft's airframe, they impart a periodic modulation to the signal scattered from the engine structure, which in turn generates a radar signature that can be useful for target identification. The emphasis of current ...