随着大功率防空雷达的出现,各式各样的攻击飞行器开始贴近地面飞行。这些低空飞行的飞行器在地表背景掩护下很难被雷达发现,特别是随着巡航导弹的出现,以往的防空雷达就更加无能为力了。为此,人们开始研制能装载大功率远距雷达的预警飞机。其机载雷达可全方位扫描,能跟踪利用地面背景掩护的任何目标。 With the advent of high-power air defense radars, a wide range of attack aircraft began to fly close to the ground. These low-flying aircraft are difficult to detect by radar under the cover of the earth’s surface. In particular, with the advent of cruise missiles, the previous air defense radars have become even more helpless. To this end, people began to develop early warning aircraft that can carry high-power long-range radar. Its airborne radar is capable of full range scanning and can track any target covered by the ground background.