美军上周日试射远程拦截导弹失败，经初步调查是由于海基X频段雷达工作异常所致。该试验在加州进行，一枚远程导弹成功发射升空，六分钟后，第二枚（拦截）导弹发生升空，但是并未对第一枚导弹成功实施拦截；美国军方正在进一步调查具体原因……

Washington (CNN) -- A U.S. missile defense test failed Sunday when a long-range missile missed its target because of radar problems.

The Defense Department said a target missile was launched from an Army test site at Kwajalein Atoll in the Marshall Islands at 7:40 p.m.

Six minutes later, a second missile was launched from Vandenberg Air Force Base in California, to find the first one and destroy it.

Both missiles flew successfully, but missed each other because of a problem in the sea-based X-band radar, the department's Missile Defense Agency said.

The X-band radar sits atop a modified floating oil platform and provides information about incoming missiles so military officials can launch a response.

"Both the target missile and ground-based interceptor performed nominally after launch. However, the sea-based X-band radar did not perform as expected," the agency said.

Officials intend to investigate the cause of the interception failure.

原文链接：http://edition.cnn.com/2010/US/02/01/missile.defense.test/

军事, 武器, 试验, 反导导弹, 反导, 导弹, 美军, 美国

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