QW-18
QW-18 is the development of the QW-11G with an improved seeker. QW-18 first appeared in Zhuai Air Show with QW-11 and QW-11G in 2002, many domestic Chinese media sources claim that it is the Chinese equivalent of FIM-92D. An enhanced dual band infrared seeker is developed so that the target is not only tracked via the exhaust heat, but also the temperature difference of the skin of the target. These improvements provided better capabilities against terrain-hugging cruise missiles at supersonic speed. Externally, QW-18 is identical to QW-11G / QW-11.
Read more about this topic: QW-1 Vanguard