在1973年末的苏联部队演习中,首次出现了苏制 SA-10和 SA-11导弹系统,并于1979年初已正式装备。这两种新的苏式导弹的出现,使美国五角大楼感到忧虑,因为到目前为止,美国飞机的装备还不足以探测、干扰和回避这两种导弹的攻击。西方分析家认为,这两种导弹系统构成的主要威胁有两方面:一是两系统的工作频率偏高,跟踪雷达的工作频率高达18千兆赫以上,SA-10导弹系统可能工作到35千 The Soviet-made SA-10 and SA-11 missile systems first appeared in the Soviet unit exercises at the end of 1973 and were formally equipped in early 1979. The advent of these two new Soviet-type missiles has worried the Pentagon because so far the U.S. aircraft are not equipped to detect, disrupt and evade the attacks of these two missiles. Western analysts believe that the two main threats posed by the two missile systems are twofold: firstly, the operating frequency of the two systems is so high that the operating frequency of the tracking radar is as high as 18 GHz and the SA-10 missile system may work to 35 thousand