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雷达在本世纪三十年代末期出现以来,随着宇宙航行技术与航空武器的发展,雷达技术的发展极为迅速.短短的二十多年来,雷达已经从一种防御性的设备变成了一种进攻性的武器.而且随着科学技术的发展,它在各种领域中的应用也日趋广泛,除了在军事上它是一种必不可少的战略和战术装备外,在国民经济各部门的应用也越来越普遍,如在江河、海上使用雷达来作为导航设备以解决雾中或可见度很差的黑夜航行的安全问题,在港口用来调度船舶和指挥船舶进出港口,在机场用来引导、监视和指挥飞机起飞和着陆,在气象部门用来预测风暴和云雨等等.各种不同型式的雷达
Since the advent of radar in the late 1930s, radar technology has developed rapidly with the development of aerospace and aeronautical weapons, and in just two decades the radar has evolved from a defensive device An offensive weapon.With the development of science and technology, its application in various fields is also becoming more and more widespread. Apart from its military necessity, it is an indispensable strategic and tactical equipment. In various sectors of the national economy Applications are becoming more common, such as the use of radar in rivers and seas as navigational equipment to deal with the safety issues of dark night sailing in the fog or in poor visibility, to be used at the port to dispatch and command ships to and from ports for use at the airport Direct, monitor and command the take-off and landing of aircraft, use in the meteorological department to predict storms and cloud-rain, etc. Various types of radars