Results 21 to 30 of about 11,088,671 (294)

Shape recognition using orientational and morphological scale‐spaces of curvatures

open access: yesIET Computer Vision, 2015
In this study, a scale‐invariant representation for closed planar curves (silhouettes) is proposed. The orientations of all points within the Gaussian scale‐space of the curve are extracted.
Erdem Akagündüz
doaj   +1 more source

Optical interconnection networks based on microring resonators [PDF]

open access: yes, 2012
Optical microring resonators can be integrated on a chip to perform switching operations directly in the optical domain. Thus they become a building block to create switching elements in on-chip optical interconnection networks, which promise to overcome
Cuda, Davide   +6 more
core   +1 more source

Advanced Electrode Design for Low-Voltage High-Speed Thin-Film Lithium Niobate Modulators

open access: yesIEEE Photonics Journal, 2021
In this paper, we present a novel transmission line architecture in thin-film lithium niobate (TFLN) platforms to improve the velocity match between the microwave and the optical wave.
Xingrui Huang   +6 more
doaj   +1 more source

Electro-optical muzzle flash detection

open access: yes, 2022
Paper 99870A, 7 S.Localizing a shooter in a complex scenario is a difficult task. Acoustic sensors can be used to detect blast waves. Radar technology permits detection of the projectile. A third method is to detect the muzzle flash using electro-optical
Krieg, Jürgen   +2 more
core   +1 more source

Improvement of Overlap for 2x2 MZI Electro-Optic Switch Based on Lithium Tantalite (LiTaO3)

open access: yesمجلة النهرين للعلوم الهندسية, 2022
This research introduces a method of an electro-optic effect and electro-refractive effect that considers very imperative for high-speed optical communication systems.
Sadeq Adnan Hbeeb
doaj   +1 more source

Modulator structures for radio-on-fiber applications

open access: yesJournal of Telecommunications and Information Technology, 2003
Traditional electro-optic modulators are not optimized for bandpass applications such as radio-on-fiber delivery systems due to their limited electro-optic response.
Sean Victor Hum   +2 more
doaj   +1 more source

Performance Evaluation of Optical-Beam Stabilization Platforms With Different Supports Used in Large-Aperture Electro-Optical System

open access: yesIEEE Photonics Journal, 2022
Optical-beam stabilization platform (OBSP) provides high-precision inertial reference for measurement of full link optical-beam jitter in large-aperture electro-optical systems.
Yutang Wang   +5 more
doaj   +1 more source

An analysis of the 2016 Hitomi breakup event

open access: yesEarth, Planets and Space, 2017
The breakup of Hitomi (ASTRO-H) on 26 March 2016 is analysed. Debris from the fragmentation is used to estimate the time of the event by propagating backwards and estimating the close approach with the parent object.
Sven Flegel   +4 more
doaj   +1 more source

Spectrally Fragmented Electrical Dispersion Compensation for High-Speed Microstrip Traces in Data Centers Connections

open access: yesIEEE Photonics Journal, 2016
The frequency-dependent dispersion impairment of high-speed printed analog traces in next-generation pluggable modules is studied. This frequency dependence is considered for the first time in optical fiber communication systems.
Yanir London, Dan Sadot
doaj   +1 more source

Real-Time Atmospheric Turbulence Mitigation Using CPU-Based Multiframe Fusion on Embedded Electro-Optical Systems

open access: yesIEEE Access
Atmospheric turbulence degrades long-range electro-optical (EO) imagery with geometric warping, blur, and temporal jitter. We present a CPU-only, registration-free, tile-wise multi-frame fusion operator specifically tailored for embedded mission systems ...
Zuhal Hancer   +2 more
doaj   +1 more source

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