摘要
舰艇速度与航向的变化，会引起舰艇辐射噪声声源级和目标反射强度的变化，从而将分别改变鱼雷对目标的被动与主动自导作用距离。本文根据声纳方程，给出了鱼雷目标的能量检测模型。计算分析了:(1)舰艇在常速与高速航行时被动自导鱼雷发现的概率；(2)0.99的相同检测概率下，不同舰艇舷角上鱼雷主动发现目标的距离。计算结果表明，舰艇若以最高速规避鱼雷，将使鱼雷被动自导作用距离大大增加，而规避航向对主动发现概率有很大影响。
The radiated noise energy from a ship and the reflected strength to a ship will be changed with its motion velocity and course, respectively. Based on these changes, the acquisition range of passive or active homing torpedo will be changed. This paper introduces a detection probability model of homing torpedo based on sonar equations and studies two interesting problems: (1) The possibility of passive homing torpedo to find a vessel moving in the regular velocity and maximum velocity are respectively estimated from the point view of energy detection. (2) Under same detection probability, 0.99, acquisition range of an active homing torpedo is estimated with respect to different relative bearings. Calculation results show that the acquisition range of passive homing torpedo to vessel moving in maximum velocity will be farther than moving in usual velocity in the same conditions, and evasion course will have great effect on the detection probability of active homing torpedo.
出处
《系统仿真学报》
EI
CAS
CSCD
2001年第3期348-349,407,共3页
Journal of System Simulation
