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一、引言在终端区域,空中交通管制要求的最安全的答案仍是使用一次雷达来获得。为满足因全天候和各种场地特点、设备可靠性和可以易于维护等不断增多的一些要求,用于进场空中交通管制的一次雷达,在接收机、合成器和数据处理中都把固态技术结合进去了,然而发射机和显示子系统仍使用真空管。许多雷达制造商均毫不犹豫地将这样的雷达称为“固态”只不过进而解释为“除发射管外”而已。(见图1)。
I. INTRODUCTION In the terminal area, the safest answer to air traffic control requirements is still to be obtained using a radar. To meet the growing number of requirements for all-weather and site-specific features, equipment reliability and ease of maintenance, a radar for approach air traffic control combines solid-state technology in receivers, synthesizers and data processing In, however, the transmitter and display subsystem still use vacuum tubes. Many radar manufacturers are not hesitate to call such a radar “solid state” only to be interpreted as “except launch tube” only. (see picture 1).