Results 111 to 120 of about 6,421,419 (387)
Optics Express, 2017 A photonics-based radar with generation and de-chirp processing of broadband linear frequency modulated continuous-wave (LFMCW) signal in optical domain is proposed for high-resolution and real-time inverse synthetic aperture radar (ISAR) imaging. In the
Fangzheng Zhang +6 more
semanticscholar +1 more source
Generalized radar/radiometry imaging problems
13th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2000. Conference Proceedings (IEEE Cat. No.00EX428), 2001 In the paper the results of spatio-temporal imaging simulation based on radar, synthetic aperture radar (SAR) and radiometry systems are presented. The analytical relationship between object scattering/emitting and the formed image is given and the general approach for the description of imaging system by means of Frendholm equation solution is ...
Prudyus, I. +4 more
openaire +4 more sources
CMOS‐Compatible Short‐Wave Infrared Linear Arrays of Ge‐on‐Si Avalanche Photodiodes
Advanced Photonics Research, EarlyView.The fabrication and characterization of a new type of surface‐illuminated Si‐based avalanche photodiode array operating in the short‐wave infrared region using germanium as the absorber and silicon as the multiplier is reported. The demonstration of an avalanche gain of 24 at a temperature of 378 K allows the devices to operate in outdoor environments.
Mrudul Modak +15 more
wiley +1 more source
Observation of the Earth by radar [PDF]
Techniques and applications of radar observation from Earth satellites are discussed. Images processing and analysis of these images are discussed. Also discussed is radar imaging from aircraft.
Elachi, C.
core +1 more source
Optical Chaos Generation and Applications
Advanced Photonics Research, EarlyView.This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen +8 more
wiley +1 more source
Metasurfaced Reverberation Chamber
Scientific Reports, 2018 The concept of metasurfaced reverberation chamber (RC) is introduced in this paper. It is shown that by coating the chamber wall with a rotating 1-bit random coding metasurface, it is possible to enlarge the test zone of the RC while maintaining the ...
Hengyi Sun +7 more
doaj +1 more source
Performance Investigation on Scan-On-Receive and Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar [PDF]
, 2009 The work investigates the performance of the Smart Multi-Aperture Radar Technique (SMART) Synthetic Aperture Radar (SAR) system for high-resolution wide-swath imaging based on Scan-on-Receive (SCORE) algorithm for receive beam steering.
Bordoni, Federica +4 more
core
Combined Observations of Meteors by Image-Orthicon Television Camera and Multi-Station Radar [PDF]
, 1971 A. F. Cook +5 more
openalex +1 more source
Advanced Photonics Research, EarlyView.Herein, a compact all‐dielectric metalens operating at dual sub‐THz frequencies is presented, addressing key challenges in terahertz device miniaturization. Utilizing commercial 3D printing, the metalens achieves high numerical aperture and broadband functionality.
Kobi Ben Atar +2 more
wiley +1 more source
Guaranteed Stability of Sparse Recovery in Distributed Compressive Sensing MIMO Radar
International Journal of Antennas and Propagation, 2015 Low SNR condition has been a big challenge in the face of distributed compressive sensing MIMO radar (DCS-MIMO radar) and noise in measurements would decrease performance of radar system.
Yu Tao, Gong Zhang, Jindong Zhang
doaj +1 more source