Lockheed Martin, which makes the Aegis system, is trying to come up with a fix.
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The Aegis system is integrated and managed by Lockheed Martin, relying on a variety of interceptor missiles manufactured by Raytheon.
The AEGIS system brings both functions together by continually sending out signals in all directions, theoretically meaning it can search for and track hundreds of targets at the same time.
Having set in train his defensive program, Mr. Bush can go to the American people and elicit their support for the next steps initially, the relatively low-cost upgrades to the Aegis system and then, as needed, other complementary and cost-effective anti-missile systems (the most attractive option being space-based defenses).
Multiple upgrades to the Aegis system are now progressing in parallel, with missiles, radars and computers all being improved in a series of increasingly capable increments that could one day make Aegis warships vital to defense not only of overseas allies and deployed forces, but also the continental United States.
That is the site in Moorestown, New Jersey where the Navy tests the radars for its Aegis combat system, the most capable air- and missile-defense system in the world.
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All the legal constraints that had prevented use of sea-based systems in missile defense schemes disappeared, and engineers could begin thinking about exploiting the full operational potential of the Aegis combat system.
The Navy built two classes of warships around the Aegis combat system, beginning with the Ticonderoga class of cruisers in the 1980s and then the Arleigh Burke class of destroyers in the 1990s.
Similarly, Putin has proposed that instead of 10 anti-missile interceptors slated for deployment in Poland, the United States put interceptors in Turkey, Iraq and at sea on warships equipped with the Aegis defensive system.
The Bush Administration has a sluggish, low-key missile defense effort under way: a limited ground-based system deployed in Alaska and California, which won't be much of a deterrent in today's world, and a still underdeveloped sea-based system modeled on the U.S. Navy's Aegis vertical launch system.
It also carries the advanced AEGIS air defence system that is rapidly becoming the backbone of US naval radar.
Their Aegis missile defence system, deployed to protect American carrier groups, is designed to track a missile's trajectory from launch.
The SM-3 missiles are part of the Aegis Ballistic Missile Defense system.
This will require immediately expanding the number of Navy ships with the Aegis fleet air defense system that are equipped to intercept ship-launched ballistic missiles.
The test involved the third straight intercept by a SM 3 missile launched from a cruiser, the U.S.S. Lake Erie, equipped with the Aegis fleet air defense system.
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It can be achieved most rapidly, most efficiently and most affordably from the sea, by adapting the Navy's AEGIS fleet air defense system to shoot down ballistic missiles.
One Pentagon official said that since early January, a team including 200 industry experts and scientists had worked furiously to modify the Aegis air-defense missile system so it could shoot down the satellite.
At its inception in the late 1960s, Aegis was conceived as an integrated system of computers, radars and missiles for defeating hostile aircraft at sea.
They would be a block against invasion, and the Aegis missile technology on this class of destroyer could someday be upgraded to a missile defense system.
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