Effectiveness analysis of a hard-kill underwater defense system for surface warships against wake-homing torpedo attack

Abstract

We conducted simulations to analyze the effects of a hard-kill-type underwater defense system that defends friendly warships against an enemy wake-homing torpedo. Assuming that the enemy torpedo is a wake-homing torpedo, our surface warship detours to the prespecified evasive course by firing a hard-kill-type system, which is modeled as a passive acoustic homing-torpedo, to attack the enemy torpedo. We analyzed the effectiveness of a warship’s survival probability via Monte Carlo simulation, given the probabilistic angles of the launched torpedoes, to compare two cases where one used only evasive maneuvering and the other used the hard-kill-type underwater defense system with evasion at the same time. By changing the maximum torpedo detection range of a warship and the torpedo’s initial location, we observed that the resulting survival probability of a warship was above 61% with a hard-kill-type defense system, whereas it remained at 34% without a hard-kill defense system, the necessity of a hard-kill underwater defense system, especially against wake-homing torpedoes.

A Simulator Development of Surface Warship Torpedo Defense System considering Bubble-Generating Wake Decoy

“…과도 분석 [4] , 부유식/자항식기만기와 재머를 동시에 고 려한 경어뢰의 효과도분석 [5] , 이산사건 및 이산시간 시뮬레이션 모델을 고려한 음향 유도 어뢰의 효과도 분석 [1,6] , 하드킬 방식의 어뢰방어체계 사용시 최종 교 전단계에서의 효과도분석 [7] , 부유식 및 자항식 기만기 의 혼합 운용을 고려한 수상함의 생존율에 대한 효과 도 분석 [3] , 항적추적어뢰에 대항하는 하드킬 방식의 어뢰방어체계에 대한 효과도분석 [8] , 수상함의 배치에 따른 대잠 방어계획 효과도 연구 [9] , 그리고 수상함의 회피기동에 강인한 항적 탐색 방법 [10] 고려하여 수상함의 운동 모델을 구현하였다 [4] . plans for acoustic decoys [12] 2.…”