instantaneous field of view


Also found in: Acronyms.

instantaneous field of view

[¦in·stən¦tā·nē·əs ¦fēld əv ′vyü]
(optics)
The solid angle within which radiation is detected by an imaging system employing some form of scanning mechanism, at a given instant of time.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
First, by allowing the virtual viewing direction to be changed, the observer may explore the entire virtual environment with only a narrow instantaneous field of view. Second, by presenting a detailed HSD in the viewing direction and a simple image in the periphery, less visual information is presented.
Effects of Head-Slaved and Peripheral Displays on Lane-Keeping Performance and Spatial Orientation
An antenna best suited to eavesdrop upon signals arriving at arbitrary frequencies from arbitrary directions should be broadband and omnidirectional, or at least have a very wide instantaneous field of view. To accurately determine the angle of arrival of this same signal, once detected, requires a highly directional antenna or some relatively sophisticated signal processing techniques.
A sampling of EW antennas
The main advantages of interferometric techniques include wide instantaneous bandwidth, wide instantaneous field of view (120 [degrees] typically), and sub-degree accuracy.
Pod development for SIGINT/ELINT
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