FLG-1
Development of FLV-1 with upgraded C4I system so that in addition to the missiles of FLV-1, up to half a dozen towed anti-aircraft artillery could also be controlled at the same time. Since the towed anti-aircraft artillery lacked fire control system and the FLV-1 system lacks any guns, the combined anti-aircraft artillery and air defense missile system overcomes the disadvantage for both and greatly improved the performance in comparison to separate individual system. The FLG-1 system can be integrated into larger air defense network.
Read more about this topic: QW-1 Vanguard