Northrop Grumman Corporation has been awarded the first phase of a ＄30 million firm-fixed price U.S. Air Force contract to develop a global space surveillance ground radar system.

诺斯罗普·格鲁曼公司已经获得了美国空军第一阶段价值3000万美元的合同，以研发全球空间监视地面雷达系统。

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With the widespread availability in space-borne radar system and airborne radar system of the phase-array radar, the research on which became an active demand.

并且由于相控阵雷达在星载和机载系统中得到日益广泛的应用，使得这种研究显得尤为必要和迫切。

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MMIC, having advantages of small size, light mass, high reliability and excellent reproducibility, finds use in a variety of microwave system, especially in airborne radar and space applications.

具有尺寸小、重量轻、可靠性高、生产重复性好等优点，广泛应用于各种微波系统，特别是机载雷达和卫星通信等方面。

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