Results 151 to 160 of about 729 (216)

Recent Advances in Programmable Metasurfaces and Meta‐Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao   +4 more
wiley   +1 more source
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Electro-optic switching systems

IEEE International Conference on Communications, Including Supercomm Technical Sessions, 1990
Potential network applications of photonic switching based on the use of guided-wave electrooptics technology are reviewed. The characteristics and limitations of the component technologies for space and time switching are discussed with reference to the present state of the art. Systems experiments and demonstrations are described.
I. Bennion, L. Thylen, N.F. Whitehead
openaire   +1 more source

Electro-Optical Imaging Systems: Performance Measurement

2015
The minimum resolvable temperature difference (MRTD), the minimum resolvable contrast (MRC), and the triangle orientation discrimination (TOD) are end-to-end EO system performance measures; that is, laboratory measures that characterize EO system performance with a human observer in the loop. Such system performance measures are used: 1) to verify if a
Bijl, P., Toet, A., Valeton, J.M.
openaire   +3 more sources

Electro-optical tracking systems

1993
The basic structure of electro-optical tracking systems, in particular for solving the kinematic problem of the moving object is shown.
Pajk, Josip   +2 more
openaire   +2 more sources

Reconfigurable lens with an electro-optical learning system

Applied Optics, 1996
An electro-optical system is proposed to control a reconfigurable lens that is a combination of a physical lens and a two-dimensional liquid-crystal phase modulator. The functions of an imaging system employing the reconfigurable lens can be controlled by a change in the phase distribution of the modulator. A computer changes the phase distribution and
Y, Takaki, H, Ohzu
openaire   +2 more sources

Electro-optical and Infrared Systems

2014
This chapter deals with the flight testing of electro-optical (EO) systems (e.g., day television [TV], image intensification [I2] systems, etc.) and infrared (IR) systems (e.g., forward-looking infrared [FLIR], IR line scanners, etc.). There have been vast improvements in both of these types of systems as a result of miniaturization, production ...
openaire   +1 more source

Electro-Optical System Analysis

2013
In this chapter different electro-optical systems are briefly defined and analyzed to demonstrate the application of the radiometric modeling techniques developed in the early chapters of the book. In the work presented here, the emphasis is on the radiometry and methodology, rather than on the detail parameters.
openaire   +1 more source

EMC at electro-optical system

The 22nd Convention on Electrical and Electronics Engineers in Israel, 2002., 2003
Summary form only given. Electro-optical (EO) systems are widely used in military, paramilitary, and commercial environments. This paper is focused on EMC design of military and paramilitary systems. These EO systems include day and night vision equipment, Laser range finders and designators, photography subsystems etc.
openaire   +1 more source

MTF in Electro-Optical Systems

2010
In Chapter 1 we applied a transfer-function-based analysis to describe image quality in classical optical systems - €”that is, systems with glass components only. In this chapter we will examine the MTF of electro-optical systems - €”that is, systems that use a combination of optics, scanners, detectors, electronics, signal processors, and displays ...
openaire   +1 more source

An Electro-Optical Test System

IRE Transactions on Military Electronics, 1962
This paper describes how a host of sensors sensitive to X rays, ultraviolet and infrared, and to other electric or magnetic fields are distributed throughout a complex electronic system in such a manner that the system is continuously monitored to determine its condition of operability.
openaire   +1 more source

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