عنوان مقاله [English]
Owing to its high operational power, the submarine has always a serious threat to surface vessels. For this reason, surface vessels are continuously searching where a submarine might be present. The submarines threat assessment is therefore essential for making appropriate decisions and weapons allocations. The threat assessment can be explored from two perspectives: operational and kinematics. In the operational approach, the surface vessel behavior is analyzed in terms of its interaction with operational experiences. Whereas, in the kinematics approach, the threat assessment is carried out based on the position and movement of the submarine itself and the surface vessel. In the kinematics approach, important motion parameters are identified, and for each parameter, according to its variation range, appropriate fuzzy sets are formed. Human knowledge is also modeled in the form of fuzzy if-then rules. After combining the received data from sensors, the proposed system determines the threat level for any target. The efficiency of the advanced system has been investigated through performing simulations in different scenarios. Considering the scarcity of publications on the submarine threat assessment, the present paper can be considered as a pioneer work in this field.