Abstract: Wavehopping antiship missiles such as “Exocet MM38”, etc. are serious threats to heavy surface vessels, and the shipborne closein weapons system is the “last chance” defense against the antiship missiles. Therefore, as for the interception of the wavehopping antiship missiles, the accurate, stable and automatic target tracking is one of the key technologies for the system. The constitution of the dualchannel video processor, which is adapted to tracing the wavehopping highspeed missiles automatically, is presented in this paper. Some technologies of the processor, such as operation principle, noise suppression preprocessing, image segmentation, signature extraction, recognition and position detection, are briefly introduced. And the central part (the resource utilization and the data fusion processing of the dualchannel video information) is discussed in detail. The dualchannel parallel processing data fusion was applied firstly at home to the optoelectronic tracking instruments of shipborne closein weapons systems, and a satisfactory tracking effect was achieved in the demonstration test on the sea.