An algorithm for determining the entry of a warship into an underwater threat zone

Regarding the issue of determining whether a warship has entered an underwater threat zone, this article established an algorithm coordinate system, classified the location relationship between legs and underwater threat zones, and included the method of judging the classification for each situation, on this basis the judgment rules were established. The example verification preliminarily shown that the judgment algorithm proposed in the article could quickly and accurately determine whether a warship had entered the underwater threat zone, directly serving as a reference for warship maneuvering. After technical application research and verification, it can be embedded in the warship's combat command decision support system, which can provide practical auxiliary decision support for commanders.