Feedback (usually a laser, GPS, or RADAR) allows constant adjustment of the path in flight.
Do such events as storms or radar outages also force such diversions?
This kind of LEMP weapon could be theoretically deployed as an air defense system to neutralize conventional (IR guided or radar guided) missiles, but could also be used to neutralize UAVs, which are dependent on electronic systems.
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The electronics in your radar or laser detector work no faster than those in my radar or LIDAR gun.
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Its defining characteristic is the low-observable, or stealth, features that make it nearly impossible to track or target using conventional radar or heat-seeking missiles.
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Lasting until officials give the all-clear, the modifications are being made to increase safety should there be problems with navigation systems or if radar screens go dark.
We'd spend hours hiking up beautiful mountains, only to find ourselves surrounded by cellphone towers or military radar installations, and have to go back to the drawing board.
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"It would be most useful for countries where they don't have much rain gauge data or weather radar - in Africa for instance, they do have mobile phones, at least in areas where the population density is high enough, " he told BBC News.
In the early 1990s, Doppler Weather Radar, or as it was more commonly known, Next Generation Weather Radar, was deployed at local National Weather Service forecast offices nationwide.
Some luxury cars already contain adaptive cruise control, which uses radar or laser-based sensors to track the movements of vehicles on the road ahead.
It typically just means that the group is successfully staying under the radar or is such a rounding error or so non-strategic that no one notices they are there.
These systems use camera images or near-range radar to determine the direction and position of the vehicle in relation to lane markings.
News Radar consistently shows Google and its Android operating system in or near the center of the radar screen as it gains market share.
Radar, or radio waves, sweep the sky every 12 seconds transmitting images of approaching aircraft that can then be viewed by controllers onscreen in a series of centers spanning the nation.
Switching on radar, or an anti-aircraft gun firing a single salvo, now brings down a hail of bombs on anything deemed threatening, from command bunkers to radar stations, and even anti-ship missiles.
Ford's prototype system aims to lessen distraction by taking readouts from biometric sensors and combining the data with information from the car, including speed, steering-wheel angle, and data from radar sensors or cameras used in blind-spot obstacle detection or cruise control.
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Once an idea is proposed, site visitors can give it a thumbs up or down (or rather, they decide whether they digg it or not), and the idea either rises to the top with the momentum gained (Reddit much, anyone?), or falls off the radar with little attention.
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Similarly, the board believed that a hang-glider or para-motor would be radar significant and that conditions precluded them, as they did para-gliders or parascenders.
Worse, the company's chief asset--its nifty software--still has no patent or trademark protection (see radar graph).
However the unveiling of the Chengdu J-20 is believed to bring China into the restricted ranks of those countries able to build a fifth-generation radar-evading or "stealth" fighter.
Officers said areas of concrete floor inside the house were also being drilled and any abnormalities or other areas shown up by radar were being examined.
Miami's terminal radar approach control center, or Tracon, guides airplanes from high altitude into airport approach paths and then hands them over to airport control towers.
Russian security services have declined to confirm that they warned the U.S. or ever had the alleged bomber on their radar.
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They don't need highway patrols or officers sitting on the sides of roads with radar guns.
Some job seekers regularly email recruiters jokes, goofy photos or other unprofessional items just to stay on their radar, says Romayne P.
Bloggers, etsy sellers, affiliates, eBay merchants and other small businesses have been able to stay under the radar if their income comes from multiple sources or if they are paid from companies that fail to file report that income (for whatever reason).
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But over 26.2 miles, stumbles, slowdowns, or even complete stops for water are small blips on the radar that do not define the race.
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Every liquor bottle is also inspected daily, in case one not bearing the "OU, " or Orthodox Union certification mark, has somehow snuck under the radar.
They were not on the radar screen here, their sufferings not widely known, or cared, about.
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