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Research on radar image overlay on ECDIS

ECDIS is the core equipment in the ship's navigation system, and the navigation radar of the ship also plays an important role in navigation. The radar image overlay on ECDIS can not only improve the avoiding collision ability, but also improve the accuracy of navigation. So the overlay information is very helpful in navigation. The paper designs and realizes the radar image overlay on ECDIS system. Aiming at the sea clutter problem, this paper adopts the CA-CFAR Log-t method to restrain the sea clutter and improve detection ability of radar. Moreover, the DirectX Overlay technique is used to realize the overlay system, which makes the system greatly faster.