frequency agility

frequency agility

[′frē·kwən·sē ə‚jil·əd·ē]
(ordnance)
The ability to shift the frequency of a radar transmitter rapidly and continually in order to avoid jamming by the enemy, to reduce mutual interference with friendly sources, to enhance echoes from targets, or to provide the required patterns of electronic countermeasures or electronic counter-countermeasures radiation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In addition, they provide enhanced frequency agility, lowering the probability of detection and intercept while ensuring link security, situational awareness, and spectrum efficiency.
The frequency agility of SCRN-220 provides investment protection to mobile operators if they ever need to change the spectrum being used for enterprise LTE small cell networks.
The Department of the Navy is investing in new technologies and developing updated policies that will facilitate maximized spectrum efficiency, including improving the ability to coexist with other systems in the same band, and increasing radio frequency agility.
The new wireless RF AMI network will leverage best-in-class signal range and unparalleled frequency agility to serve as a powerful platform to support advanced functionality including remote meter disconnects, pro-active outage notification and prepay metering.
AESA radar offers greater frequency agility than conventional radar systems, including Passive Electronically Scanned Arrays (PESA), which delivers unpredictable scan patterns that are difficult to detect by radar warning receivers (RWRs), particularly older systems.
Among other interesting features is the uPoint Robot Radio, which, said the company, leverages frequency agility -- the ability to automatically switch away from congested frequencies -- power management, and mesh networking to form a robust network in which robots, operators, and observers work seamlessly together.
Consequently, the experimental characterization of an antenna with many switches will be a difficult task to be realized, which may explain for example the use of strips in [17] instead of the three PIN diodes required to achieve the frequency agility of a dual band-notched slot antenna.
Hayes, "Microstrip antennas with frequency agility and polarization diversity," IEEE Trans.
Frequency agility is typically provided by scaling the antenna dimensions physically or electrically.
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