大俯仰角时的潜艇目标强度研究

Target strength research of submarine under large pitching angle

大俯仰角时的潜艇目标强度是自顶向下攻击的水中兵器所需要的重要目标特性数据,而该类目标特性数据难以测量。为此,以多亮点模型为理论基础,通过仿真方法研究了大俯仰角情况下的潜艇目标强度。从研究结果可知,在正横方位上,潜艇目标强度与俯仰角无关;在其他方位上,当照射角相同时,俯仰角越大,目标强度值也越大;当俯仰角为90°时,潜艇的目标强度与声波的照射角无关。研究结果与潜艇的物理结构特性相吻合,对水中兵器的科研与试验具有一定的参考价值。

Target strength of submarine under large pitching angle is a very important characteristic of the target in the marine weapon when attacking from top to bottom, while target strength is very hard to measure. This paper based on“ the multi high light model, researches target strength of submarine under large pitching angle through simulation. From the conclusion ： in abeam direction, target strength of submarine has no relationship with the pitching angle; in other direction, the larger the pitching angle, the larger target strength when the irradiation angle is the same; when the pitching angle is 90 degree, target strength has no relationship with the irradiation angle of the sound wave. The conclusion complies with the physical characteristic of the submarine structure, providing the reference for the research and experiment of the marine weapon.