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在七十年代提出改进“霍克”导弹时,“产品改进计划”(PIP)的目标是要提高系统的可靠性.以后,产品又作了进一步改进,即使用性能更佳的火箭发动机,使用电子抗干扰能力更强的新的制导装置以及采用几发弹同时发射的方式.目前美国海军同样也开始对其老式的导弹巡洋舰和驱逐舰进行改进.旨在改进舰载雷达和武器控制系统的“新威胁改进计划”将改善GC16/26和DG37级舰的电子抗干扰性能,使这些舰只也能使用“宙斯盾”舰才能使用的“标准”SM-2增程导弹.该计划正在顺利进行,预计到1991年结束.
The goal of the PIP was to improve the reliability of the system when it was proposed in the seventies to improve the “Hawk” missiles, and the product was further refined in the future by using rocket engines of better performance, New electronic anti-jamming guidances, and simultaneous launching of several rounds of ammunition, the U.S. Navy also began to improve its old-style missile cruisers and destroyers to improve the “ The new threat improvement program ”will improve the electronic anti-jamming performance of the GC16 / 26 and DG37 ships so that these ships can also use the“ standard ”SM-2 extended-range missiles that can be used by the“ Aegis. ”The project is proceeding smoothly, It is estimated that by the end of 1991.