Coupled micro-Doppler signatures of closely located targets

  title={Coupled micro-Doppler signatures of closely located targets},
  author={V. Kozlov and S. Kosulnikov and D. Filonov and Andrey. Schmidt and P. Ginzburg},
  journal={Physical Review B},
The classical Doppler shift originates from the movement of a target’s center of mass, but it does not hold information about the internal dynamics of the scattering object. In contrast, micro-Doppler signatures contain data about the micromotions that arise from internal degrees of freedom within the target (such as rotation and vibration), which can be remotely detected by careful analysis of the scattered field. Here we investigate, both theoretically and experimentally, how coupling between… Expand

Figures from this paper

Memory effects in scattering from accelerating bodies
Abstract. Interaction of electromagnetic, acoustic, and even gravitational waves with accelerating bodies forms a class of nonstationary time-variant processes. Scattered waves contain intrinsicExpand
Dynamically reconfigurable metamaterial-based scatterer
Metamaterials are artificially created media, which allow introducing additional degrees of freedom into electromagnetic design by controlling constitutive material parameters. ReconfigurableExpand
Broadband radar invisibility with time-dependent metasurfaces
An approach is proposed, which addresses the issue from a signal-processing standpoint and is capable of coping with the vast majority of unclassified radar systems by exploiting vulnerabilities in their design, and demonstrates complete concealment of a moving metal plate from an investigating radar system. Expand


Asymmetric micro-Doppler frequency comb generation via magnetoelectric coupling
Electromagnetic scattering from moving bodies, being inherently time-dependent phenomenon, gives rise to a generation of new frequencies, which could characterize the motion. While a standard linearExpand
Micro-Doppler frequency comb generation by rotating wire scatterers
Abstract Electromagnetic scattering in accelerating reference frames inspires a variety of phenomena, requiring employment of general relativity for their description. While the ‘quasi-stationaryExpand
Micro-Doppler effect in radar: phenomenon, model, and simulation study
When, in addition to the constant Doppler frequency shift induced by the bulk motion of a radar target, the target or any structure on the target undergoes micro-motion dynamics, such as mechanicalExpand
Asymmetric backscattering from the hybrid magneto-electric meta particle
The optical theorem relates the total scattering cross-section of a given structure with its forward scattering, but does not impose any restrictions on other directions. Strong backward-forwardExpand
Partially coherent radar unties range resolution from bandwidth limitations
A different type of ranging system is demonstrated, which possesses superior range resolution that is almost completely free of bandwidth limitations, and shows an improvement of two orders of magnitude, compared to standard coherent radars with the same bandwidth. Expand
Quantum sensing of motion in colloids via time-dependent Purcell effect
Light-matter interaction dynamics is governed by the strength of local coupling constants, tailored by surrounding electromagnetic structures. Characteristic decay times in dipole-allowed fluorescentExpand
Radar micro-Doppler signatures of various human activities
It was found that it is possible to distinguish these targets from the MDS under certain circumstances, but not under others, and features for designing detectors and classifiers of human targets performing such movements are recommended. Expand
On the resonances and polarizabilities of split ring resonators
In this paper, the behavior at resonance of split ring resonators (SRRs) and other related topologies, such as the nonbianisotropic SRR and the broadside-coupled SRR, are studied. It is shown thatExpand
Resonant meta-atoms with nonlinearities on demand
Nonlinear light-matter interactions and their applications are constrained by properties of available materials. The use of metamaterials opens the way to achieve precise control over electromagneticExpand
Helicopter rotor-blade modulation of antenna radiation characteristics
This paper investigates rotor modulation on the gain and input impedance of an antenna mounted on a helicopter's fuselage. The rotor blades, which are rotating about an axis with a given angularExpand