Metasurface-Enabled Helical Wavefront Fingerprint Metrology for Quantitative Retrieval of Liquid Optical Constants. [PDF]
Adv Sci (Weinh)A metasurface‐enabled helical wavefront fingerprint (MHWF) paradigm is proposed for quantitative and specific retrieval of a liquid medium's refractive index and extinction coefficient. The liquid's complex dielectric response governs the wavefront evolution of the metasurface‐generated focused vortex beam, forming a distinctive three‐dimensional ...
Zhou Y +10 more
europepmc +2 more sources
Results in Physics, 2023 The quantum radar cross sections (QRCS) for the targets are the critical basis for the optimization designs of stealth structures and quantum detection strategy.
Zhifu Tian +4 more
doaj +1 more source
The Optimization of Warhead and QRCS Simulation for a Stealth Missile
IEEE Access, 2022 In this study, the analytical expression of quantum radar cross section (QRCS) for three-dimensional (3D) convex targets is presented. The QRCS simplified calculation equation is derived numerically after the introduction of the correlation photon ...
Shaoze Lu +4 more
doaj +1 more source
Theoretical study of single-photon quantum radar cross-section of cylindrical curved surface [PDF]
Acta Physica Sinica, 2022 To examine the single-photon quantum radar cross-section of cylindrical surface and its specific advantages over the classical radar cross-section, a photon wave function in which the distance vectors causing interference are decomposed is introduced in this study. A closed-form expression of the single-photon quantum radar cross-section of cylindrical
Zhi-Fu Tian, Di Wu, Tao Hu
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Developments in target micro-Doppler signatures analysis : radar imaging, ultrasound and through-the-wall radar [PDF]
, 2013 Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Woodbridge, K. +3 more
core +5 more sources
Are Pixel Intensities Proportional To Radar Cross Section In SAR Images? [PDF]
, 2012 Radar cross section has long been the measurement quantity of choice to describe the radar reflectivity of point targets in calibrated synthetic aperture radar (SAR) images.
Döring, Björn J. +3 more
core +1 more source
Insect ventral radar cross-section polarisation dependence measurements for radar entomology [PDF]
, 2006 Radar entomology has developed such that routine long-term monitoring of insect flight through the atmospheric boundary layer is now practical. Typical entomological radars use X-band (9.4 GHz) marine transceivers with a vertical pencil beam and rotate ...
Aldhous, Anthony C., Hobbs, Stephen
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The dependence of radar target detectability on array weighting function [PDF]
, 2009 Presented at the IET-Radar 2007 Conference Edinburgh 15-18 October 2007This paper describes simulation work to assess the detectability of targets by an airborne fire control radar (FCR) operating in a medium pulse repetition frequency (PRF) mode in ...
Alabaster, Clive M., Hughes, Evan J.
core +7 more sources
Terahertz radar cross‐section characterisation using laser feedback interferometry with quantum cascade laser [PDF]
Electronics Letters, 2015 Radar cross‐section (RCS) measurements of complex, large objects are usually performed on scale models so that the measurement is carried out in a well‐controlled environment. The feasibility of RCS measurement using a terahertz (THz) quantum cascade laser (QCL) via laser feedback interferometry is explored.
H.S. Lui +11 more
openaire +5 more sources
The radar signature of the Wind Lens: a less disruptive wind turbine? [PDF]
, 2012 We study the radar signature of a new type of wind turbine, named the Wind Lens. This design includes a flanged shroud around the turbine which concentrates the wind flow past the turbine blades and hence improves the efficiency.
H. Griffiths +9 more
core +1 more source