Results 71 to 80 of about 1,208,570 (249)
Advanced Science, EarlyView.Multiscale phase segregation in block copolymers enables spatially deterministic structuring from molecular to macroscopic scales, decoupling solar scattering and infrared emission for augmented radiative cooling. ABSTRACT Passive radiative cooling, which reflects solar irradiation while emitting heat through the atmospheric window, provides a ...
Mingxin Feng +10 more
wiley +1 more source
Experimental passive radar systems using digital illuminators (DAB/DVB-T)
, 2022 7 S.With the distribution of digital broadcast networks in Germany the development of passive radar experimental and demonstrator systems at FGAN has concentrated on exploiting these digital illuminators for passive radar target detection.
Heckenbach, J. +5 more
core +1 more source
Evolution of Netted Radar Systems
IEEE Access, 2020 The netted radar systems are known for being able to provide higher target detection probabilities, more accurate measurements, and better multi-target tracking performance than the monostatic/bistatic radar systems by exploiting information fusion ...
Zhe Geng
doaj +1 more source
The effects of DVB-T SFN data on passive radar signal processing
, 2013 In this paper, we compare and contrast code, time and spatial domain signal processing techniques for mitigating the effects of the ambiguities present in single frequency network digital broadcast signals in passive radar. By performing these additional
Stephen J. Searle +11 more
core +1 more source
Advanced Science, EarlyView.A sandwich‐structured aramid composite paper was designed to integrate high corona resistance and thermal conductivity. The fluorinated graphene/aramid surface layers effectively dissipate space charges to suppress corona discharge. Meanwhile, the boron nitride nanotube/aramid core layer constructs continuous heat‐conduction pathways.
Jun‐Wen Ren +10 more
wiley +1 more source
Results of Dual-Polarimetric Airborne Passive Radar
Polarimetry in remote sensing applications has emerged as a valuable technique for enhancing the information content of Synthetic Aperture Radar (SAR) images. Passive radar exploits existing illuminators of opportunity, e.g.
Markiton, Philipp M., Cristallini, Diego
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Advanced Science, EarlyView.This Review outlines the biological framework of entry, maintenance, and awakening in dormant minimal residual disease across gynecologic cancers. By mapping critical biological dependencies—from metabolic plasticity to microenvironment interactions—it evaluates novel interception concepts and presents a translational framework combining single‐cell ...
Shih‐Hsuan Cheng +7 more
wiley +1 more source
Leida xuebao, 2015 Space target surveillance generally uses active radars. To take full advantage of passive radars, the idea of using spaceborne illuminators of opportunity for space target detection is presented in this paper.
Jiang Tie-zhen +3 more
doaj +1 more source
Advanced Science, EarlyView.Researchers developed and applied a generative artificial intelligence (AI) model to optimize epsilon‐near‐zero thin film stacks for ultra‐broadband perfect absorption of light. The fabricated AI‐designed absorber, with a total thickness of only 160 nm, experimentally demonstrated an absorption bandwidth exceeding 1000 nm while maintaining greater than
David Dang +10 more
wiley +1 more source
On the resolution performance of passive radar using DVB-T illuminations
, 2022 S.20-23DVB-T signals used as illumination for passive radar offer advantageous radar signal processing properties and promise sufficiently high range resolution.
Heckenbach, J. +3 more
core +1 more source