【摘要】 作为水声对抗重要手段之一的噪声压制干扰器,其干扰效能直接关系到被保护目标的生存概率。为分析噪声压制干扰器对线列阵声纳的干扰效能,首先根据被动声纳方程建立了噪声压制干扰器作用效能理论模型,推导干扰有效作用范围和干扰成功掩蔽区的计算方式;然后结合被动声纳系统的线谱和连续谱检测技术,分别分析噪声压制干扰器对线谱和连续谱检测性能的影响规律。仿真实验表明,减小干扰器与被保护目标的方位夹角、缩短干扰器投射距离、适当增加干扰器噪声发射功率,可以增大干扰作用范围、提高干扰效能。更多还原

【Abstract】 Wideband noise jammer is one of the important means of underwater acoustic countermeasure. Its interference efficiency is directly related to the survival probability of the protected target. Based on the passive sonar equation, a theoretical model of noise jammer is established in order to analyze the interference efficiency of wideband noise jammer to linear array sonar. More speci?cally, the effective range and successful masking area of jammer are formulated, which are important tactical and technical indicators during underwater acoustic warfare. In addition, the influence of noise jammer on the detection performance of passive sonar system is analyzed according to the line-spectrum detection and continuous spectrum energy detection technology. Simulations are performed to evaluate the noise jammer’s disturbance. The results show that the effective range and the jamming efficiency of noise jammer can be increased by reducing the azimuth angle or distance between the jammer and the protected target, the emission power of the jammer is improved properly.更多还原