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自布什政府上台以来,美国更加重视导弹防御系统的建设和导弹防御技术的开发与研究,为了扫清障碍,公然退出1972年美、苏签定的反弹道导弹条约。2001年,美国进一步追加导弹防御系统研制经费,把国家导弹防御系统、激光反导武器和巡航导弹防御技术的研制与开发放到了更加重要的位置。此外,俄罗斯、欧洲,以色列及台湾地区在这方面都取得了一定程度的进展。美国大幅度增加国防预算并提出弹道导弹防御新思路 2001年12月13日,美国国会批准了3440亿美元的国防开支议案,使得2002年度国防预算比2001年度国防预算高出330亿美元。其重点将放在扩大和强化研制、试验及项目评估上,并把精力集中在最有成功希望的项目上,原有的机载激光武器、天基激光武器以及天基红外系统等都将
Since the Bush administration took office, the United States has placed greater emphasis on the development of the missile defense system and on the development and study of missile defense technology. To clear the obstacle, the United States has openly withdrawn from the treaty on anti-ballistic missiles signed by the United States and the Soviet Union in 1972. In 2001, the United States further increased funding for missile defense system research and put the development and construction of the national missile defense system, laser anti-ballistic missile weaponry and cruise missile defense technology in a more important position. In addition, Russia, Europe, Israel and Taiwan have made some progress in this regard. U.S. Has Speeded Up National Defense Budget and Proposed New Strategy for Ballistic Missile Defense On December 13, 2001, the U.S. Congress approved a national defense spending bill of 344 billion U.S. dollars, making the national defense budget for 2002 more than the national defense budget for 2001 by 33 billion U.S. dollars. The focus will be on expanding and strengthening research, testing and project evaluation and focusing on the projects most promising for success. The original airborne laser weapons, space-based laser weapons and space-based infrared systems will